1
|
Shi B, Zhang C, Kelly T, Wei X, Ding M, Huang M, Fu S, Poletti F, Slavík R. Splicing Hollow-Core Fiber with Standard Glass-Core Fiber with Ultralow Back-Reflection and Low Coupling Loss. ACS PHOTONICS 2024; 11:3288-3295. [PMID: 39184184 PMCID: PMC11342409 DOI: 10.1021/acsphotonics.4c00677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Revised: 07/02/2024] [Accepted: 07/05/2024] [Indexed: 08/27/2024]
Abstract
A main, yet-unsolved challenge in splicing hollow-core fiber (HCF) into standard single-mode fiber (SMF) systems lies in managing the strong Fresnel back-reflection that occurs when the light travels from the empty core of the HCF into the glass core of the SMF or vice versa. This impacts the performance of fiber systems that combine SMFs and HCFs due to effects such as multipath interference. Here, we demonstrate a new technique that combines angle-cleaving the HCF, which reduces the back-reflection, with offset-splicing the mode-field adapter to the SMF, which compensates for the refraction at the glass-air interface, enabling us to achieve low coupling loss. We first analyze this novel configuration via simulations and show that it is possible to achieve a coupling loss that is comparable to a conventional flat-cleaved splice. Subsequently, we fabricate an SMF-HCF connection with a loss of 0.6 dB prior to arcing (1.2 dB after splicing) and ultralow back-reflection (-64 dB) by applying an optimized 4.5° angle and 5 μm offset. To the best of our knowledge, this is the first low-insertion-loss spliced SMF-HCF connection where a widely acceptable level of back-reflection of <-60 dB is achieved.
Collapse
Affiliation(s)
- Bo Shi
- Optoelectronics
Research Centre, University of Southampton, Southampton SO17 1BJ, U.K.
| | - Cong Zhang
- School
of Information Engineering, Guangdong University
of Technology, Guangzhou 510006, China
| | - Thomas Kelly
- Optoelectronics
Research Centre, University of Southampton, Southampton SO17 1BJ, U.K.
| | - Xuhao Wei
- Optoelectronics
Research Centre, University of Southampton, Southampton SO17 1BJ, U.K.
| | - Meng Ding
- Optoelectronics
Research Centre, University of Southampton, Southampton SO17 1BJ, U.K.
| | - Meng Huang
- Optoelectronics
Research Centre, University of Southampton, Southampton SO17 1BJ, U.K.
| | - Songnian Fu
- School
of Information Engineering, Guangdong University
of Technology, Guangzhou 510006, China
| | - Francesco Poletti
- Optoelectronics
Research Centre, University of Southampton, Southampton SO17 1BJ, U.K.
| | - Radan Slavík
- Optoelectronics
Research Centre, University of Southampton, Southampton SO17 1BJ, U.K.
| |
Collapse
|
2
|
Li Z, Liu J, Ning Z, Xu H, Miao J, Pan Y, Yang C, Fang Y. Compact gas cell for simultaneous detection of atmospheric aerosol optical properties based on photoacoustic spectroscopy and integrating sphere scattering enhancement. PHOTOACOUSTICS 2024; 36:100591. [PMID: 38322617 PMCID: PMC10844632 DOI: 10.1016/j.pacs.2024.100591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 01/15/2024] [Accepted: 01/23/2024] [Indexed: 02/08/2024]
Abstract
Atmospheric aerosols play a pivotal role in the earth-atmospheric system. Analyzing their optical properties, specifically absorption and scattering coefficients, is essential for comprehending the impact of aerosols on climate. When different optical properties of aerosols are individually measured using multiple devices, cumulative errors in the detection results inevitably occur. To address this challenge, based on photoacoustic spectroscopy (PAS) and integrating sphere (IS) scattering enhancement, a compact gas cell (PASIS-Cell) was developed. The PASIS-Cell comprises a dual-T-type photoacoustic cell (DTPAC) and an IS. IS is coupled with DTPAC through a transparent quartz tube, thereby enhancing the scattering signal without compromising the acoustic characteristics of DTPAC. Concurrently, DTPAC can realize high-performance photoacoustic detection of absorption signal. Experimental results demonstrate that PASIS-Cell can simultaneously invert atmospheric aerosol absorption and scattering coefficients, with a minimum detection limit of less than 1 Mm-1, showcasing its potential in the analysis of aerosol optical properties.
Collapse
Affiliation(s)
- Zhengang Li
- Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
| | - Jiaxiang Liu
- Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
| | - Zhiqiang Ning
- Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
- University of Science and Technology of China, Hefei 230026, China
| | - Haichun Xu
- Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
- University of Science and Technology of China, Hefei 230026, China
| | - Junfang Miao
- Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
- University of Science and Technology of China, Hefei 230026, China
| | - Ying Pan
- Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
| | - Changping Yang
- Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
- University of Science and Technology of China, Hefei 230026, China
| | - Yonghua Fang
- Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
- University of Science and Technology of China, Hefei 230026, China
| |
Collapse
|
3
|
Peng Z, Huang Y, Zheng K, Min Y, Zhao H, Pi M, Song F, Zheng C, Zhang Y, Chang Z, Wang Y. Slow-Light-Enhanced Polarization Division Multiplexing Infrared Absorption Spectroscopy for On-Chip Wideband Multigas Detection in a 1D Photonic Crystal Waveguide. Anal Chem 2024; 96:3445-3453. [PMID: 38364860 DOI: 10.1021/acs.analchem.3c04793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2024]
Abstract
Slow-light photonic crystal waveguide (PCW) gas sensors based on infrared absorption spectroscopy play a pivotal role in enhancing the on-chip interaction between light and gas molecules, thereby significantly boosting sensor sensitivity. However, two-dimensional (2D) PCWs are limited by their narrow mode bandwidth and susceptibility to polarization, which restricts their ability for multigas measurement. Due to quasi-TE and quasi-TM mode guiding characteristics in one-dimensional (1D) PCW, a novel slow-light-enhanced polarization division multiplexing infrared absorption spectroscopy was proposed for on-chip wideband multigas detection. The optimized 1D PCW gas sensor experimentally shows an impressive slow-light mode bandwidth exceeding 100 nm (TM, 1500-1550 nm; TE, 1610-1660 nm) with a group index ranging from 4 to 25 for the two polarizations. The achieved bandwidth in the 1D PCW is 2-3 times that of the reported quasi-TE polarized 2D PCWs. By targeting the absorption lines of different gas species, multigas detection can be realized by modulating the lasers and demodulating the absorption signals at different frequencies. As an example, we performed dual-gas measurements with the 1D PCW sensor operating in TE mode at 1.65 μm for methane (CH4) detection and in TM mode at 1.53 μm for acetylene (C2H2) detection. The 1 mm long sensor achieved a remarkable limit of detection (LoD) of 0.055% for CH4 with an averaging time of 17.6 s, while for C2H2, the LoD was 0.18%. This polarization multiplexing sensor shows great potential for on-chip gas measurement because of the slow-light enhancement in the light-gas interaction effect as well as the large slow-light bandwidth for multigas detection.
Collapse
Affiliation(s)
- Zihang Peng
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China
| | - Yijun Huang
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China
| | - Kaiyuan Zheng
- Department of Electrical Engineering and Photonics Research Institute, The Hong Kong Polytechnic University, Hong Kong 518060, China
| | - Yuting Min
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China
| | - Huan Zhao
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China
| | - Mingquan Pi
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China
| | - Fang Song
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China
| | - Chuantao Zheng
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China
| | - Yu Zhang
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China
| | - Zhiyong Chang
- Key Laboratory of Bionic Engineering, Ministry of Education, College of Biological and Agricultural Engineering, Jilin University, Changchun 130022, China
| | - Yiding Wang
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China
| |
Collapse
|
4
|
Zhang Z, Zang Z, Guo J, Li M, Na H, Zheng R. High-Temporal-Resolution In Situ Sensor for Oceanic CO 2 Isotope Measurement Enabling Multidimensional Isotope Tracing Analysis (R 13C, R 18O, and R 17O) via Laser Absorption Spectroscopy. Anal Chem 2024; 96:1195-1204. [PMID: 38189664 DOI: 10.1021/acs.analchem.3c04357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2024]
Abstract
Combined in situ analysis of oceanic CO2 concentrations and diverse C and O isotope characteristics can offer a unique perspective with multiple isotopic tracing dimensions for identifying marine biogeochemical processes. Applying this strategy in marine environments is urgently required, yet it faces inherent challenges in terms of existing analytical methods and instruments, e.g., a lack of in situ sensors, limited detectable isotope variety, and low-temporal-resolution data. Here, we report an underwater in situ dissolved CO2 isotope sensor based on mid-infrared tunable diode laser absorption spectroscopy (MIR-TDLAS) and membrane extraction technology. Through the proposed targeted strategies, the sensor is capable of providing high-temporal-resolution in situ measurement of all monosubstituted isotopes of dissolved CO2 (16O13C16O, 18O12C16O, and 17O12C16O) at marine background concentrations. The sensor is demonstrated to provide comparable precision to that of isotope ratio mass spectrometry. At 400 ppmv, the precision for R13C, R18O, and R17O could achieve 0.084, 0.042, and 0.013‰, respectively, for a 1 s integration time. By enabling a high-frequency in situ analysis in fixed-point time-series field deployment, a 17O anomaly with strong regularity is observed, which is not obvious in 18O and 13C, and therefore, the superiority of the proposed multidimensional in situ isotope tracing strategy is demonstrated. The developed sensor has great potential to open up new prospects for advancing marine carbon research.
Collapse
Affiliation(s)
- Zhihao Zhang
- Faculty of Information Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Zixi Zang
- Faculty of Information Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Jinjia Guo
- Faculty of Information Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Meng Li
- Faculty of Information Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Hui Na
- Faculty of Information Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Ronger Zheng
- Faculty of Information Science and Engineering, Ocean University of China, Qingdao 266100, China
| |
Collapse
|
5
|
Goel C, Wang Y, Yoo S, Chang W. Antiresonant hollow-core fiber Bragg grating design. OPTICS LETTERS 2023; 48:5305-5308. [PMID: 37831853 DOI: 10.1364/ol.501173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 09/14/2023] [Indexed: 10/15/2023]
Abstract
Fiber Bragg gratings (FBGs) inscribed in hollow-core fibers hold a potential to revolutionize the field of gas photonics by enhancing the performance and versatility of hollow-core fiber-based matter cells. By effectively transforming these cells into cavities, FBGs can significantly extend the effective length of light-matter interactions. Traditional FBG inscription methods cannot be extended to hollow-core fibers, because light in the fundamental mode is predominantly confined to the hollow region where an index change cannot be induced. In this Letter, we propose a bi-thickness dual-ring hollow-core antiresonant fiber (DRHCF) design that achieves substantial overlap between the fundamental mode and cladding glass in a well-controlled manner, ensuring a strong FBG response with a minimal insertion loss. Through detailed numerical investigations, we demonstrate the feasibility of creating a high reflection FBG in the DRHCF using standard FBG inscription techniques. The proposed device is expected to have a length of <1 cm and the insertion loss of <0.3 dB, including splice loss.
Collapse
|
6
|
Ren X, Pan J, Yan M, Sheng J, Yang C, Zhang Q, Ma H, Wen Z, Huang K, Wu H, Zeng H. Dual-comb optomechanical spectroscopy. Nat Commun 2023; 14:5037. [PMID: 37596269 PMCID: PMC10439198 DOI: 10.1038/s41467-023-40771-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 08/09/2023] [Indexed: 08/20/2023] Open
Abstract
Optical cavities are essential for enhancing the sensitivity of molecular absorption spectroscopy, which finds widespread high-sensitivity gas sensing applications. However, the use of high-finesse cavities confines the wavelength range of operation and prevents broader applications. Here, we take a different approach to ultrasensitive molecular spectroscopy, namely dual-comb optomechanical spectroscopy (DCOS), by integrating the high-resolution multiplexing capabilities of dual-comb spectroscopy with cavity optomechanics through photoacoustic coupling. By exciting the molecules photoacoustically with dual-frequency combs and sensing the molecular-vibration-induced ultrasound waves with a cavity-coupled mechanical resonator, we measure high-resolution broadband ( > 2 THz) overtone spectra for acetylene gas and obtain a normalized noise equivalent absorption coefficient of 1.71 × 10-11 cm-1·W·Hz-1/2 with 30 GHz simultaneous spectral bandwidth. Importantly, the optomechanical resonator allows broadband dual-comb excitation. Our approach not only enriches the practical applications of the emerging cavity optomechanics technology but also offers intriguing possibilities for multi-species trace gas detection.
Collapse
Affiliation(s)
- Xinyi Ren
- State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai, 200062, China
| | - Jin Pan
- State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai, 200062, China
| | - Ming Yan
- State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai, 200062, China.
- Chongqing Key Laboratory of Precision Optics, Chongqing Institute of East China Normal University, Chongqing, 401120, China.
- Chongqing Institute for Brain and Intelligence, Guangyang Bay Laboratory, Chongqing, 400064, China.
| | - Jiteng Sheng
- State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai, 200062, China.
- Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, 030006, China.
| | - Cheng Yang
- State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai, 200062, China
| | - Qiankun Zhang
- State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai, 200062, China
| | - Hui Ma
- State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai, 200062, China
| | - Zhaoyang Wen
- State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai, 200062, China
| | - Kun Huang
- State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai, 200062, China
| | - Haibin Wu
- State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai, 200062, China.
- Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, 030006, China.
- Shanghai Research Center for Quantum Sciences, Shanghai, 201315, China.
- Shanghai Branch, Hefei National Laboratory, Shanghai, 201315, China.
| | - Heping Zeng
- State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai, 200062, China.
- Chongqing Key Laboratory of Precision Optics, Chongqing Institute of East China Normal University, Chongqing, 401120, China.
- Chongqing Institute for Brain and Intelligence, Guangyang Bay Laboratory, Chongqing, 400064, China.
- Jinan Institute of Quantum Technology, Jinan, Shandong, 250101, China.
| |
Collapse
|
7
|
Jaworski P, Wu D, Yu F, Krzempek K. Direct performance comparison of antiresonant and Kagome hollow-core fibers in mid-IR wavelength modulation spectroscopy of ethane. OPTICS EXPRESS 2023; 31:24810-24820. [PMID: 37475299 DOI: 10.1364/oe.493177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 06/20/2023] [Indexed: 07/22/2023]
Abstract
In this paper, we experimentally asses the performance of wavelength modulation spectroscopy-based spectrometers incorporating 1.3 m-long gas absorption cells formed by an antiresonant hollow core fiber (ARHCF) and a Kagome hollow core fiber. To evaluate the discrepancies with minimum methodology error, the sensor setup was designed to test both fibers simultaneously, providing comparable measurement conditions. Ethane (C2H6) with a transition located at 2996.88 cm-1 was chosen as the target gas. The experiments showed, that due to better light guidance properties, the ARHCF-based sensor reached a minimum detection limit of 4 ppbv for 85 s integration time, which is more than two times improvement in comparison to the result obtained with the Kagome fiber.
Collapse
|
8
|
Xia Z, Zhang X, Yao J, Liu Z, Jin Y, Yin H, Wang P, Wang XH. Giant Enhancement of Raman Scattering by a Hollow-Core Microstructured Optical Fiber Allows Single Exosome Probing. ACS Sens 2023; 8:1799-1809. [PMID: 37018734 DOI: 10.1021/acssensors.3c00131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
Abstract
Microstructured optical fibers (MOFs) provide solutions for breaking through the bottlenecks in areas of high-power transmission and high-efficiency optical waveguides. Other than transporting light waves, MOFs can synergistically combine microfluidics and optics in a single fiber with an unprecedented light path length not readily achievable by planar optofluidic configurations. Here, we demonstrate that hollow-core anti-resonant optical fibers (HcARFs) can significantly enhance Raman scattering by over three orders of magnitude (EF ≈ 5000) compared with a planar setup, due to the joint mechanisms of strong light-matter interaction in the fiber core and the cumulative effect of the fiber. The giant enhancement enables us to develop the first optical fiber sensor to achieve single cancer exosome detection via a sandwich-structured strategy. This enables a multiplexed analysis of surface proteins of exosome samples, potentially allowing an accurate identification of the cellular origin of exosomes for cancer diagnosis. Our findings could expand the applications of HcARF in many exciting areas beyond the waveguide.
Collapse
Affiliation(s)
- Zhiwen Xia
- Laboratory for Biomedical Photonics, Institute of Laser Engineering, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China
| | - Xin Zhang
- Laboratory for Advanced Laser Technology and Applications, Institute of Laser Engineering, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China
| | - Jingyuan Yao
- Laboratory for Advanced Laser Technology and Applications, Institute of Laser Engineering, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China
| | - Zihao Liu
- Laboratory for Biomedical Photonics, Institute of Laser Engineering, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China
| | - Yulong Jin
- Laboratory for Advanced Laser Technology and Applications, Institute of Laser Engineering, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China
| | - Huabing Yin
- Department of Biomedical Engineering, James Watt School of Engineering, University of Glasgow, Glasgow G12 8LT, U.K
| | - Pu Wang
- Laboratory for Advanced Laser Technology and Applications, Institute of Laser Engineering, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China
- Key Laboratory of Trans-scale Laser Manufacturing Technology, Ministry of Education, Beijing 100124, China
- Beijing Engineering Research Center of Laser Technology, Beijing 100124, China
| | - Xiu-Hong Wang
- Laboratory for Biomedical Photonics, Institute of Laser Engineering, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China
- Key Laboratory of Trans-scale Laser Manufacturing Technology, Ministry of Education, Beijing 100124, China
- Beijing Engineering Research Center of Laser Technology, Beijing 100124, China
| |
Collapse
|
9
|
Hong Y, Chen F, Bao H, Jin W, Jiang S, Ho HL, Gao S, Wang Y. Amplified Photothermal Phase Modulation for Carbon Dioxide Detection by Operating a Dual-Mode Interferometer at Destructive Interference. Anal Chem 2023; 95:4204-4211. [PMID: 36797009 DOI: 10.1021/acs.analchem.2c05482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
Photothermal interferometry is a highly sensitive spectroscopic technique for trace gas detection. However, the performance of the state-of-the-art laser spectroscopic sensors is still insufficient for some high-precision applications. Here, we demonstrate optical phase-modulation amplification by operating a dual-mode optical fiber interferometer at destructive interference for ultrasensitive carbon dioxide detection. With a 50 cm long dual-mode hollow-core fiber, amplification of photothermal phase modulation by a factor of nearly 20 is achieved, which enables carbon dioxide detection down to 1 parts-per-billion with a dynamic range of over 7 orders of magnitude. This technique could be readily used to improve the sensitivity of phase modulation-based sensors with a compact and simple configuration.
Collapse
Affiliation(s)
- Yingzhen Hong
- Department of Electrical Engineering and Photonics Research Institute, The Hong Kong Polytechnic University, Kowloon 999077, Hong Kong, China.,Photonics Research Center, The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen 518057, China
| | - Feifan Chen
- Department of Electrical Engineering and Photonics Research Institute, The Hong Kong Polytechnic University, Kowloon 999077, Hong Kong, China.,Photonics Research Center, The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen 518057, China
| | - Haihong Bao
- Department of Electrical Engineering and Photonics Research Institute, The Hong Kong Polytechnic University, Kowloon 999077, Hong Kong, China.,Photonics Research Center, The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen 518057, China
| | - Wei Jin
- Department of Electrical Engineering and Photonics Research Institute, The Hong Kong Polytechnic University, Kowloon 999077, Hong Kong, China.,Photonics Research Center, The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen 518057, China
| | - Shoulin Jiang
- Photonics Research Center, The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen 518057, China
| | - Hoi Lut Ho
- Department of Electrical Engineering and Photonics Research Institute, The Hong Kong Polytechnic University, Kowloon 999077, Hong Kong, China.,Photonics Research Center, The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen 518057, China
| | - Shoufei Gao
- Institute of Photonics Technology, Jinan University, Guangzhou 511443, China
| | - Yingying Wang
- Institute of Photonics Technology, Jinan University, Guangzhou 511443, China
| |
Collapse
|
10
|
Zhang Z, Li M, Yang T, Zang Z, Li N, Zheng R, Guo J. Seconds-Scale Response Sensor for In Situ Oceanic Carbon Dioxide Detection. Anal Chem 2023; 95:3577-3586. [PMID: 36754844 DOI: 10.1021/acs.analchem.2c03507] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
Research on the transient variation processes of oceanic dissolved CO2 makes significant sense because of the complexity and dynamics of the marine environment. Yet, it is inherently challenging due to the limitation of the response performance of in situ sensors. Here, we report a novel system solution capable of providing high-performance detection with a seconds-scale response, sub-ppmv level precision, and 3000 m rated depth. Through the proposed strategy, we break the limitation of the membrane on the response performance of the sensor and improve it by 2 orders of magnitude to the τ100 of 3.5 s (τ90 = 2.7 s). By taking water temperature and CO2 concentration as the tracer, we succeed in portraying the water mixing process and reveal the microstructure of the concentration variation profile. By enabling in situ detection at an unprecedented response speed, this instrument can provide new insights and prospects into the research on the carbon cycle in deep-sea unstable regions, such as hydrothermal vents and cold seeps.
Collapse
Affiliation(s)
- Zhihao Zhang
- Faculty of Information Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Meng Li
- Faculty of Information Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Tong Yang
- Faculty of Information Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Zixi Zang
- Faculty of Information Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Ning Li
- Faculty of Information Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Ronger Zheng
- Faculty of Information Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Jinjia Guo
- Faculty of Information Science and Engineering, Ocean University of China, Qingdao 266100, China
| |
Collapse
|
11
|
Kelly TW, Davidson IA, Warren C, Brooks WSM, Foster MJ, Poletti F, Richardson DJ, Horak P, Wheeler NV. Sub-ppm gas phase Raman spectroscopy in an anti-resonant hollow core fiber. OPTICS EXPRESS 2022; 30:43317-43329. [PMID: 36523032 DOI: 10.1364/oe.473887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 10/14/2022] [Indexed: 06/17/2023]
Abstract
We demonstrate recent progress in the development of a Raman gas sensor using a single cladding ring anti-resonant hollow core micro-structured optical fiber (HC-ARF) and a low power pump source. The HC-ARF was designed specifically for low attenuation and wide bandwidth in the visible spectral region and provided low loss at both the pump wavelength (532 nm) and Stokes wavelengths up to a Raman shift of 5000 cm-1. A novel selective core pressurization scheme was also implemented to further reduce the confinement loss, improving the Raman signal enhancement by a factor of 1.9 compared to a standard fiber filling scheme. By exploiting longer lengths of fiber, direct detection of both methane and hydrogen at concentrations of 5 and 10 ppm respectively is demonstrated and a noise equivalent limit-of-detection of 0.15 ppm is calculated for methane.
Collapse
|
12
|
Chen F, Jiang S, Ho HL, Gao S, Wang Y, Jin W. Frequency-Division-Multiplexed Multicomponent Gas Sensing with Photothermal Spectroscopy and a Single NIR/MIR Fiber-Optic Gas Cell. Anal Chem 2022; 94:13473-13480. [PMID: 36129189 DOI: 10.1021/acs.analchem.2c02599] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We report a multicomponent gas sensor based on hollow-core fiber (HCF) photothermal spectroscopy with frequency-division multiplexing (FDM). A single antiresonant HCF (AR-HCF) is used as the gas cell, which supports broadband transmission from near-infrared (NIR) to mid-infrared (MIR), covering the absorption lines of water vapor (H2O) at 1.39 μm, carbon dioxide (CO2) at 2.00 μm, and carbon monoxide (CO) at 4.60 μm. The NIR and MIR pump lasers at the above wavelengths are coupled into the AR-HCF from the opposite ends and modulated at 7.5, 8.0, and 8.5 kHz, respectively, to produce photothermal phase modulations at different frequencies. A common probe Fabry-Perot interferometer at 1.55 μm is adopted to detect the phase modulations, which are demodulated simultaneously using three lock-in amplifiers at the respective second harmonic frequencies. With a 13-cm-long AR-HCF, simultaneous detections of H2O, CO2, and CO are demonstrated with the limits of detection (LODs) of 2.7 ppm, 25 ppb, and 9 ppb for 1 s lock-in time constant, respectively. The LODs go down to 222, 1.5, and 0.6 ppb, respectively, for 1000 s averaging time. The photothermal signals of CO and CO2, which are humidity-level dependent, are well calibrated by use of the measured H2O signal. The multicomponent gas sensor is compact in configuration and shows good stability with signal fluctuation less than 1.7% over 2 h.
Collapse
Affiliation(s)
- Feifan Chen
- Department of Electrical Engineering and Photonics Research Institute, The Hong Kong Polytechnic University, Hung Hom, Kowloon 999077, Hong Kong, China.,Photonics Research Center, The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen 518057, China
| | - Shoulin Jiang
- Photonics Research Center, The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen 518057, China
| | - Hoi Lut Ho
- Department of Electrical Engineering and Photonics Research Institute, The Hong Kong Polytechnic University, Hung Hom, Kowloon 999077, Hong Kong, China
| | - Shoufei Gao
- Institute of Photonics Technology, Jinan University, Guangzhou 511443, China
| | - Yingying Wang
- Institute of Photonics Technology, Jinan University, Guangzhou 511443, China
| | - Wei Jin
- Department of Electrical Engineering and Photonics Research Institute, The Hong Kong Polytechnic University, Hung Hom, Kowloon 999077, Hong Kong, China.,Photonics Research Center, The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen 518057, China
| |
Collapse
|
13
|
Wang Z, Wang Q, Zhang H, Borri S, Galli I, Sampaolo A, Patimisco P, Spagnolo VL, De Natale P, Ren W. Doubly resonant sub-ppt photoacoustic gas detection with eight decades dynamic range. PHOTOACOUSTICS 2022; 27:100387. [PMID: 36068805 PMCID: PMC9441262 DOI: 10.1016/j.pacs.2022.100387] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Revised: 07/09/2022] [Accepted: 07/19/2022] [Indexed: 05/06/2023]
Abstract
Photoacoustic spectroscopy (PAS) based gas sensors with high sensitivity, wide dynamic range, low cost, and small footprint are desirable in energy, environment, safety, and public health. However, most works have focused on either acoustic resonator to enhance acoustic wave or optical resonator to enhance optical wave. Herein, we develop a gas sensor based on doubly resonant PAS in which the acoustic and optical waves are simultaneously enhanced using combined optical and acoustic resonators in a centimeter-long configuration. Not only the lower detection limit is enhanced by the double standing waves, but also the upper detection limit is expanded due to the short resonators. As an example, we developed a sensor by detecting acetylene (C2H2), achieving a noise equivalent absorption of 5.7 × 10-13 cm-1 and a dynamic range of eight orders. Compared to the state-of-the-art PAS gas sensors, the developed sensor achieves a record sensitivity and dynamic range.
Collapse
Affiliation(s)
- Zhen Wang
- State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
- Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, New Territories, Hong Kong, China
| | - Qiang Wang
- State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Corresponding author at: State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China.
| | - Hui Zhang
- State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Simone Borri
- CNR-INO – Istituto Nazionale di Ottica, and LENS – European Laboratory for Nonlinear Spectroscopy, 50019 Sesto Fiorentino, Italy
| | - Iacopo Galli
- CNR-INO – Istituto Nazionale di Ottica, and LENS – European Laboratory for Nonlinear Spectroscopy, 50019 Sesto Fiorentino, Italy
| | - Angelo Sampaolo
- PolySense Lab – Dipartimento Interateneo di Fisica, University and Politecnico of Bari, Via Amendola 173, Bari, Italy
| | - Pietro Patimisco
- PolySense Lab – Dipartimento Interateneo di Fisica, University and Politecnico of Bari, Via Amendola 173, Bari, Italy
| | - Vincenzo Luigi Spagnolo
- PolySense Lab – Dipartimento Interateneo di Fisica, University and Politecnico of Bari, Via Amendola 173, Bari, Italy
| | - Paolo De Natale
- CNR-INO – Istituto Nazionale di Ottica, and LENS – European Laboratory for Nonlinear Spectroscopy, 50019 Sesto Fiorentino, Italy
| | - Wei Ren
- Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, New Territories, Hong Kong, China
- Corresponding author.
| |
Collapse
|
14
|
Krzempek K. Sensitive mid-infrared photothermal gas detection enhanced by self-heterodyne harmonic amplification of a mode-locked fiber laser probe. OPTICS EXPRESS 2022; 30:31354-31366. [PMID: 36242219 DOI: 10.1364/oe.465323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 07/08/2022] [Indexed: 06/16/2023]
Abstract
In this work, a method of photothermal spectroscopic signal extraction is presented. The refractive index modulation readout is realized in a purely frequency detection-based approach, by demodulating the beatnotes of a mode-locked fiber laser operating at 1.56 µm. A unique and non-complex self-heterodyne harmonic amplification technique is employed, yielding an increase in the limit of detection by a factor of 22. The sensor's performance was evaluated by detecting nitric oxide at 5.26 µm, confirming the feasibility of separating the pump and probe sections of the device. The sensor reached a detection limit of 9.6 parts-per-billion by volume for an integration time of 136 s, with only a 20 cm-long laser-gas molecules interaction path length.
Collapse
|
15
|
Li Z, Liu J, Si G, Ning Z, Fang Y. Design of a high-sensitivity differential Helmholtz photoacoustic cell and its application in methane detection. OPTICS EXPRESS 2022; 30:28984-28996. [PMID: 36299083 DOI: 10.1364/oe.465161] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 07/07/2022] [Indexed: 06/16/2023]
Abstract
A high-sensitivity differential Helmholtz photoacoustic cell based on multiple reflection was reported, and its performance parameters and gas replacement time were optimized by finite element simulation. To realize the long absorption path of the measured gas, the collimated excitation light was reflected multiple times on the gold-plated wall of the absorption cavity, and the wavelength modulation technology was used to reduce the multiple reflection noise. Additionally, the differential could suppress external co-phase noise and double the photoacoustic signal. When a laser with a central wavelength of 1653 nm was employed as the excitation light source, the minimum detection limit of 177 ppb (signal-to-noise ratio, SNR = 1) for methane was achieved within a detection time of 1 s, and the corresponding normalized noise equivalent absorption coefficient was 4.1×10-10 cm-1WHZ-1/2.
Collapse
|
16
|
Wang Q, Wang Z, Zhang H, Jiang S, Wang Y, Jin W, Ren W. Dual-comb photothermal spectroscopy. Nat Commun 2022; 13:2181. [PMID: 35449158 PMCID: PMC9023540 DOI: 10.1038/s41467-022-29865-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Accepted: 04/05/2022] [Indexed: 11/26/2022] Open
Abstract
Dual-comb spectroscopy (DCS) has revolutionized optical spectroscopy by providing broadband spectral measurements with unprecedented resolution and fast response. Photothermal spectroscopy (PTS) with a pump-probe configuration offers a highly sensitive gas sensing method, which is normally performed using a single-wavelength pump laser. The merging of PTS with DCS may enable a spectroscopic method by taking advantage of both technologies, which has never been studied yet. Here, we report dual-comb photothermal spectroscopy (DC-PTS) by passing dual combs and a probe laser through a gas-filled anti-resonant hollow-core fiber, where the generated multi-heterodyne modulation of the refractive index is sensitively detected by an in-line interferometer. As an example, we have measured photothermal spectra of acetylene over 1 THz, showing a good agreement with the spectral database. Our proposed DC-PTS provides opportunities for broadband gas sensing with super-fine resolution and high sensitivity, as well as with a small sample volume and compact configuration. 'Recent developments in spectroscopy have witnessed the establishment of dual-comb techniques. In this work the authors demonstrate dual-comb photothermal spectroscopy providing gas sensing with superfine resolution and high sensitivity
Collapse
Affiliation(s)
- Qiang Wang
- State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, 130033, Changchun, China. .,University of Chinese Academy of Sciences, 100049, Beijing, China.
| | - Zhen Wang
- Department of Mechanical and Automation Engineering, and Shenzhen Research Institute, The Chinese University of Hong Kong, New Territories, Hong Kong SAR, China.
| | - Hui Zhang
- State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, 130033, Changchun, China.,University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Shoulin Jiang
- Department of Electrical Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China
| | - Yingying Wang
- Institute of Photonics Technology, Jinan University, 510632, Guangzhou, China
| | - Wei Jin
- Department of Electrical Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR, China
| | - Wei Ren
- Department of Mechanical and Automation Engineering, and Shenzhen Research Institute, The Chinese University of Hong Kong, New Territories, Hong Kong SAR, China.
| |
Collapse
|
17
|
Tao LQ, Zou S, Wang G, Peng Z, Zhu C, Sun H. Theoretical analysis of the absorption of CO 2 and CO on pristine and Al-doped C 3B. Phys Chem Chem Phys 2022; 24:27224-27231. [DOI: 10.1039/d2cp04181b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Real-time detection of CO2 and CO is of great importance because CO2 is a major cause of global warming and CO endangers the human nervous and cardiovascular systems.
Collapse
Affiliation(s)
- Lu-Qi Tao
- Beijing Engineering Research Center of Industrial Spectrum Imaging, School of Automation and Electrical Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Simin Zou
- School of Electrical Engineering and State Key Laboratory of Power Transmission Equipment and System Security and New Technology, Chongqing University, Chongqing 400044, China
| | - Guanya Wang
- School of Electrical Engineering and State Key Laboratory of Power Transmission Equipment and System Security and New Technology, Chongqing University, Chongqing 400044, China
| | - Zhirong Peng
- School of Electrical Engineering and State Key Laboratory of Power Transmission Equipment and System Security and New Technology, Chongqing University, Chongqing 400044, China
| | - Congcong Zhu
- School of Electrical Engineering and State Key Laboratory of Power Transmission Equipment and System Security and New Technology, Chongqing University, Chongqing 400044, China
| | - Hao Sun
- School of Electrical Engineering and State Key Laboratory of Power Transmission Equipment and System Security and New Technology, Chongqing University, Chongqing 400044, China
| |
Collapse
|
18
|
Barik P, Pradhan M. Selectivity in trace gas sensing: recent developments, challenges, and future perspectives. Analyst 2022; 147:1024-1054. [DOI: 10.1039/d1an02070f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Selectivity is one of the most crucial figures of merit in trace gas sensing, and thus a comprehensive assessment is necessary to have a clear picture of sensitivity, selectivity, and their interrelations in terms of quantitative and qualitative views.
Collapse
Affiliation(s)
- Puspendu Barik
- Technical Research Centre, S. N. Bose National Centre for Basic Sciences, JD Block, Sector-III, Salt Lake City, Kolkata – 700106, India
| | - Manik Pradhan
- Technical Research Centre, S. N. Bose National Centre for Basic Sciences, JD Block, Sector-III, Salt Lake City, Kolkata – 700106, India
- Department of Chemical, Biological and Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, JD Block, Sector-III, Salt Lake City, Kolkata – 700106, India
| |
Collapse
|
19
|
Xiong D, Wu X, Abu Hassan MR, Gavara T, Chang W. In-line hollow-core fiber-optic bandpass filter. OPTICS LETTERS 2021; 46:5918-5921. [PMID: 34851923 DOI: 10.1364/ol.447108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Accepted: 11/06/2021] [Indexed: 06/13/2023]
Abstract
We present an antiresonant hollow-core fiber-based bandpass optical filter. The device is realized by tapering down a section of tubular hollow-core fiber to a ratio of less than 0.5. Sweeping of the tube wall thickness-induced resonant bands in the down- and up-transition sections of the taper suppresses the blue side of the spectrum, while the red side filtering exploits the increased confinement loss at the taper waist that depends sharply on the wavelength-to-core-diameter ratio. These working principles of the filter make it possible to customize the location and width of the passband by tailoring the fiber design and taper profile. We achieve a 350-nm-wide bandpass filter with the minimum insertion loss of 1.3 dB in the passband and up to 40 dB suppression in the lossbands. We anticipate the filter to become one of the essential components in all-hollow-core fiberized optical systems.
Collapse
|
20
|
Meng F, Zhao X, Ding J, Niu Y, Zhang X, Yang L, Wang X, Lou S, Sheng X, Tao G, Liang S. Discovering extremely low confinement-loss anti-resonant fibers via swarm intelligence. OPTICS EXPRESS 2021; 29:35544-35555. [PMID: 34808985 DOI: 10.1364/oe.440949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Accepted: 09/27/2021] [Indexed: 06/13/2023]
Abstract
In this work, we obtain extremely low confinement-loss (CL) anti-resonant fibers (ARFs) via swarm intelligence, specifically the particle swarm optimization (PSO) algorithm. We construct a complex search space of ARFs with two layers of cladding and nested tubes. There are three and four structures of cladding tubes in the first and second layer, respectively. The ARFs are optimized by using the PSO algorithm in terms of both the structures and the parameters. The optimal structure is obtained from a total of 415900 ARFs structures, with the lowest CL being 2.839×10-7 dB/m at a wavelength of 1.55 µm. We observe that the number of ARF structures with CL less than 1×10-6 dB/m in our search space is 370. These structures mainly comprise four designs of ARFs. The results show that the optimal ARF structures realized by the PSO algorithm are different from the ARFs reported in the previous literature. This means that the swarm intelligence accelerates the design and invention of ARFs and also provides new insights regarding the ARF structures. This work provides a fast and effective approach to design ARFs with special requirements. In addition to providing high-performance ARF structures, this work transforms the ARF designs from experience-driven to data-driven.
Collapse
|
21
|
López-Higuera JM. Sensing Using Light: A Key Area of Sensors. SENSORS (BASEL, SWITZERLAND) 2021; 21:6562. [PMID: 34640881 PMCID: PMC8512037 DOI: 10.3390/s21196562] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 09/23/2021] [Accepted: 09/24/2021] [Indexed: 12/02/2022]
Abstract
This invited featured paper offers a Doctrinal Conception of sensing using Light (SuL) as an "umbrella" in which any sensing approach using Light Sciences and Technologies can be easily included. The key requirements of a sensing system will be quickly introduced by using a bottom-up methodology. Thanks to this, it will be possible to get a general conception of a sensor using Light techniques and know some related issues, such as its main constituted parts and types. The case in which smartness is conferred to the device is also considered. A quick "flight" over 10 significant cases using different principles, techniques, and technologies to detect diverse measurands in various sector applications is offered to illustrate this general concept. After reading this paper, any sensing approach using Light Sciences and Technologies may be easily included under the umbrella: sensing using Light or photonic sensors (PS).
Collapse
Affiliation(s)
- José Miguel López-Higuera
- Photonics Engineering Group, University of Cantabria, 39005 Santander, Spain;
- Instituto de Investigación Sanitaria Valdecilla (IDIVAL), 39011 Santander, Spain
- CIBER-BBN, Instituto de Salud Carlos III, 28029 Madrid, Spain
| |
Collapse
|
22
|
Krzempek K. Part-per-billion level photothermal nitric oxide detection at 5.26 µm using antiresonant hollow-core fiber-based heterodyne interferometry. OPTICS EXPRESS 2021; 29:32568-32579. [PMID: 34615323 DOI: 10.1364/oe.435675] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 08/24/2021] [Indexed: 06/13/2023]
Abstract
In this work, I demonstrate a novel configuration of a photothermal gas sensor. Detection of nitric oxide at a wavelength of 5.26 µm was possible by constructing an absorption cell based on a self-fabricated antiresonant hollow core fiber characterized by low losses at both the pump and probe wavelengths. Proper design of the sensor allowed using the heterodyne interferometry-based signal readout of the refractive index modulation, which yielded a record noise equivalent absorption of 2.81×10-8 cm-1 for 100 s integration time for mid-infrared fiber-based gas sensors. The obtained results clearly demonstrate the full potential of using properly designed antiresonant hollow core fibers in combination with sensitive gas detection methods.
Collapse
|
23
|
Wang J, Chen W, Wang P, Zhang Z, Wan F, Zhou F, Song R, Wang Y, Gao S. Fiber-enhanced Raman spectroscopy for highly sensitive H 2 and SO 2 sensing with a hollow-core anti-resonant fiber. OPTICS EXPRESS 2021; 29:32296-32311. [PMID: 34615304 DOI: 10.1364/oe.437693] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Accepted: 09/13/2021] [Indexed: 06/13/2023]
Abstract
An innovative fiber-enhanced Raman gas sensing system with a hollow-core anti-resonant fiber is introduced. Two iris diaphragms are implemented for spatial filtering, and a reflecting mirror is attached to one fiber end that provides a highly improved Raman signal enhancement over 2.9 times than the typical bare fiber system. The analytical performance for multigas compositions is thoroughly demonstrated by recording the Raman spectra of carbon dioxide (CO2), oxygen (O2), nitrogen (N2), hydrogen (H2), and sulfur dioxide (SO2) with limits of detection down to low-ppm levels as well as a long-term instability < 1.05%. The excellent linear relationship between Raman signal intensity (peak height) and gas concentrations indicates a promising potential for accurate quantification.
Collapse
|
24
|
Jaworski P. A Review of Antiresonant Hollow-Core Fiber-Assisted Spectroscopy of Gases. SENSORS 2021; 21:s21165640. [PMID: 34451086 PMCID: PMC8402571 DOI: 10.3390/s21165640] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 08/19/2021] [Accepted: 08/19/2021] [Indexed: 12/27/2022]
Abstract
Antiresonant Hollow-Core Fibers (ARHCFs), thanks to the excellent capability of guiding light in an air core with low loss over a very broad spectral range, have attracted significant attention of researchers worldwide who especially focus their work on laser-based spectroscopy of gaseous substances. It was shown that the ARHCFs can be used as low-volume, non-complex, and versatile gas absorption cells forming the sensing path length in the sensor, thus serving as a promising alternative to commonly used bulk optics-based configurations. The ARHCF-aided sensors proved to deliver high sensitivity and long-term stability, which justifies their suitability for this particular application. In this review, the recent progress in laser-based gas sensors aided with ARHCFs combined with various laser-based spectroscopy techniques is discussed and summarized.
Collapse
Affiliation(s)
- Piotr Jaworski
- Laser and Fiber Electronics Group, Faculty of Electronics, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland
| |
Collapse
|
25
|
Zhao P, Ho HL, Jin W, Fan S, Gao S, Wang Y. Hollow-core fiber photothermal methane sensor with temperature compensation. OPTICS LETTERS 2021; 46:2762-2765. [PMID: 34061107 DOI: 10.1364/ol.426812] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Accepted: 05/12/2021] [Indexed: 06/12/2023]
Abstract
We demonstrate a high sensitivity all-fiber spectroscopic methane sensor based on photothermal interferometry. With a 2.4-m-long anti-resonant hollow-core fiber, a 1654 nm distributed feedback laser, and a Raman fiber amplifier, a noise-equivalent concentration of ${\sim}{4.3}\;{\rm ppb}$ methane is achieved at the room temperature and pressure of ${\sim}{1}\;{\rm bar}$. The effects of temperature on the photothermal phase modulation as well as the stability of the interferometer are studied. By introducing a temperature-dependent compensation factor and stabilizing the interferometer at quadrature, signal instability of ${\sim}{2.1}\%$ is demonstrated for temperature variation from 296 to 373 K.
Collapse
|
26
|
Gomolka G, Krajewska M, Khegai AM, Alyshev SV, Lobanov AS, Firstov SV, Pysz D, Stepniewski G, Buczynski R, Klimczak M, Nikodem M. Heterodyne photothermal spectroscopy of methane near 1651 nm inside hollow-core fiber using a bismuth-doped fiber amplifier. APPLIED OPTICS 2021; 60:C84-C91. [PMID: 34143110 DOI: 10.1364/ao.420044] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Accepted: 04/13/2021] [Indexed: 06/12/2023]
Abstract
We present laser-based methane detection near 1651 nm inside an antiresonant hollow-core fiber (HCF) using photothermal spectroscopy (PTS). A bismuth-doped fiber amplifier capable of delivering up to more than 160 mW at 1651 nm is used to boost the PTS signal amplitude. The design of the system is described, and the impact of various experimental parameters (such as pump source modulation frequency, modulation amplitude, and optical power) on signal amplitude and signal-to-noise ratio is analyzed. Comparison with similar PTS/HCF-based systems is presented. With 1.3 m long HCF and a fiber amplifier for signal enhancement, this technique is capable of detecting methane at single parts-per-million levels, which makes this robust in-fiber sensing approach promising also for industrial applications such as, e.g., natural gas leak detection.
Collapse
|
27
|
Abstract
Specialty fibers have enabled a wide range of sensing applications. Particularly, with the recent advancement of anti-resonant effects, specialty fibers with hollow structures offer a unique sensing platform to achieve highly accurate and ultra-compact fiber optic sensors with large measurement ranges. This review presents an overview of recent progress in anti-resonant hollow-core fibers for sensing applications. Both regular and irregular-shaped fibers and their performance in various sensing scenarios are summarized. Finally, the challenges and possible solutions are briefly presented with some perspectives toward the future development of anti-resonant hollow-core fibers for advanced sensing.
Collapse
|
28
|
Zhao P, Ho HL, Jin W, Fan S, Gao S, Wang Y, Wang P. Gas sensing with mode-phase-difference photothermal spectroscopy assisted by a long period grating in a dual-mode negative-curvature hollow-core optical fiber. OPTICS LETTERS 2020; 45:5660-5663. [PMID: 33057252 DOI: 10.1364/ol.404323] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Accepted: 09/04/2020] [Indexed: 06/11/2023]
Abstract
We demonstrate sensitive gas detection with mode-phase-difference photothermal spectroscopy assisted by a long period grating (LPG) inscribed on a dual-mode negative-curvature hollow-core fiber (NC-HCF). The LPG is inscribed using a pulsed CO2 laser, which enables pump propagation in the fundamental LP01 mode to achieve maximum photothermal phase modulation while exciting both the LP01 and LP11 modes at the probe wavelength to form a dual-mode interferometer for detection of the phase difference. With a 1533 nm pump and a 1620 nm probe, a noise equivalent concentration of ∼2.2 ppb acetylene is achieved with an 85-cm-long NC-HCF gas cell and 1 s lock-in time constant.
Collapse
|
29
|
Le THH, Shimizu H, Morikawa K. Advances in Label-Free Detections for Nanofluidic Analytical Devices. MICROMACHINES 2020; 11:mi11100885. [PMID: 32977690 PMCID: PMC7598655 DOI: 10.3390/mi11100885] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 09/20/2020] [Accepted: 09/21/2020] [Indexed: 12/12/2022]
Abstract
Nanofluidics, a discipline of science and engineering of fluids confined to structures at the 1-1000 nm scale, has experienced significant growth over the past decade. Nanofluidics have offered fascinating platforms for chemical and biological analyses by exploiting the unique characteristics of liquids and molecules confined in nanospaces; however, the difficulty to detect molecules in extremely small spaces hampers the practical applications of nanofluidic devices. Laser-induced fluorescence microscopy with single-molecule sensitivity has been so far a major detection method in nanofluidics, but issues arising from labeling and photobleaching limit its application. Recently, numerous label-free detection methods have been developed to identify and determine the number of molecules, as well as provide chemical, conformational, and kinetic information of molecules. This review focuses on label-free detection techniques designed for nanofluidics; these techniques are divided into two groups: optical and electrical/electrochemical detection methods. In this review, we discuss on the developed nanofluidic device architectures, elucidate the mechanisms by which the utilization of nanofluidics in manipulating molecules and controlling light-matter interactions enhances the capabilities of biological and chemical analyses, and highlight new research directions in the field of detections in nanofluidics.
Collapse
Affiliation(s)
- Thu Hac Huong Le
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-8656, Japan
- Correspondence: (T.H.H.L.); (H.S.); (K.M.)
| | - Hisashi Shimizu
- Collaborative Research Organization for Micro and Nano Multifunctional Devices (NMfD), The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-8656, Japan
- Correspondence: (T.H.H.L.); (H.S.); (K.M.)
| | - Kyojiro Morikawa
- Collaborative Research Organization for Micro and Nano Multifunctional Devices (NMfD), The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-8656, Japan
- Correspondence: (T.H.H.L.); (H.S.); (K.M.)
| |
Collapse
|
30
|
Nikodem M. Laser-Based Trace Gas Detection inside Hollow-Core Fibers: A Review. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E3983. [PMID: 32916799 PMCID: PMC7557433 DOI: 10.3390/ma13183983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 08/28/2020] [Accepted: 09/07/2020] [Indexed: 11/29/2022]
Abstract
Thanks to the guidance of an optical wave in air, hollow-core fibers may serve as sampling cells in an optical spectroscopic system. This paper reviews applications of hollow-core optical fibers to laser-based gas sensing. Three types of hollow-core fibers are discussed: Hollow capillary waveguides, photonic band-gap fibers, and negative curvature fibers. Their advantages and drawbacks when used for laser-based trace gas detection are analyzed. Various examples of experimental sensing systems demonstrated in the literature over the past 20 years are discussed.
Collapse
Affiliation(s)
- Michal Nikodem
- Department of Optics and Photonics, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland
| |
Collapse
|