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Lee YC, Ho YL, Lin BW, Chen MH, Xing D, Daiguji H, Delaunay JJ. High-Q lasing via all-dielectric Bloch-surface-wave platform. Nat Commun 2023; 14:6458. [PMID: 37833267 PMCID: PMC10576087 DOI: 10.1038/s41467-023-41471-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 09/05/2023] [Indexed: 10/15/2023] Open
Abstract
Controlling the propagation and emission of light via Bloch surface waves (BSWs) has held promise in the field of on-chip nanophotonics. BSW-based optical devices are being widely investigated to develop on-chip integration systems. However, a coherent light source that is based on the stimulated emission of a BSW mode has yet to be developed. Here, we demonstrate lasers based on a guided BSW mode sustained by a gain-medium guiding structure microfabricated on the top of a BSW platform. A long-range propagation length of the BSW mode and a high-quality lasing emission of the BSW mode are achieved. The BSW lasers possess a lasing threshold of 6.7 μJ/mm2 and a very narrow linewidth reaching a full width at half maximum as small as 0.019 nm. Moreover, the proposed lasing scheme exhibits high sensitivity to environmental changes suggesting the applicability of the proposed BSW lasers in ultra-sensitive devices.
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Affiliation(s)
- Yang-Chun Lee
- Department of Mechanical Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Ya-Lun Ho
- Department of Mechanical Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Bo-Wei Lin
- Department of Mechanical Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Mu-Hsin Chen
- Department of Mechanical Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Di Xing
- Department of Mechanical Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Hirofumi Daiguji
- Department of Mechanical Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Jean-Jacques Delaunay
- Department of Mechanical Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan.
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2
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Xiang Y, Lu Q, Wang R. Generation of Bloch surface beams with arbitrarily designed phases. OPTICS EXPRESS 2023; 31:22102-22112. [PMID: 37381292 DOI: 10.1364/oe.491447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Accepted: 06/03/2023] [Indexed: 06/30/2023]
Abstract
We proposed a new manipulation method for Bloch surface waves that can almost arbitrarily modulate the lateral phase through in-plane wave-vector matching. The Bloch surface beam is generated by a laser beam from a glass substrate incident on a carefully designed nanoarray structure, which can provide the missing momentum between the two beams and set the required initial phase of the Bloch surface beam. An internal mode was used as a channel between the incident and surface beams to improve the excitation efficiency. Using this method, we successfully realized and demonstrated the properties of various Bloch surface beams, including subwavelength-focused, self-accelerating Airy, and diffraction-free collimated beams. This manipulation method, along with the generated Bloch surface beams, will facilitate the development of two-dimensional optical systems and benefit potential applications of lab-on-chip photonic integrations.
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3
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Marcucci N, Guo TL, Pélisset S, Roussey M, Grosjean T, Descrovi E. Bloch Surface Waves in Open Fabry-Perot Microcavities. MICROMACHINES 2023; 14:mi14030509. [PMID: 36984916 PMCID: PMC10054795 DOI: 10.3390/mi14030509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 02/17/2023] [Accepted: 02/20/2023] [Indexed: 05/14/2023]
Abstract
Thanks to the increasing availability of technologies for thin film deposition, all-dielectric structures are becoming more and more attractive for integrated photonics. As light-matter interactions are involved, Bloch Surface Waves (BSWs) may represent a viable alternative to plasmonic platforms, allowing easy wavelength and polarization manipulation and reduced absorption losses. However, plasmon-based devices operating at an optical and near-infrared frequency have been demonstrated to reach extraordinary field confinement capabilities, with localized mode volumes of down to a few nanometers. Although such levels of energy localization are substantially unattainable with dielectrics, it is possible to operate subwavelength field confinement by employing high-refractive index materials with proper patterning such as, e.g., photonic crystals and metasurfaces. Here, we propose a computational study on the transverse localization of BSWs by means of quasi-flat Fabry-Perot microcavities, which have the advantage of being fully exposed toward the outer environment. These structures are constituted by defected periodic corrugations of a dielectric multilayer top surface. The dispersion and spatial distribution of BSWs' cavity mode are presented. In addition, the hybridization of BSWs with an A exciton in a 2D flake of tungsten disulfide (WS2) is also addressed. We show evidence of strong coupling involving not only propagating BSWs but also localized BSWs, namely, band-edge and cavity modes.
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Affiliation(s)
- Niccolò Marcucci
- Dipartimento di Scienza Applicata e Tecnologia, Politecnico di Torino, 10129 Torino, Italy
| | - Tian-Long Guo
- Center for Photonics Sciences, Department of Physics and Mathematics, University of Eastern Finland, 80101 Joensuu, Finland
| | - Ségolène Pélisset
- Center for Photonics Sciences, Department of Physics and Mathematics, University of Eastern Finland, 80101 Joensuu, Finland
| | - Matthieu Roussey
- Center for Photonics Sciences, Department of Physics and Mathematics, University of Eastern Finland, 80101 Joensuu, Finland
| | - Thierry Grosjean
- Department of Optics, FEMTO-ST Institute, UMR CNRS 6174, 25030 Besançon, France
| | - Emiliano Descrovi
- Dipartimento di Scienza Applicata e Tecnologia, Politecnico di Torino, 10129 Torino, Italy
- Correspondence:
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Asadolah Salmanpour M, Mosleh M, Hamidi SM. Bloch surface wave-atom coupling in one-dimensional photonic crystal structure. OPTICS EXPRESS 2023; 31:4751-4759. [PMID: 36785434 DOI: 10.1364/oe.479525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Accepted: 01/09/2023] [Indexed: 06/18/2023]
Abstract
Considering efforts for hot atomic vapor-nanophotonics integration as a new paradigm in quantum optics, in this paper, we introduce 1D photonic crystal-Rb vapor cell as structure with miniaturized interaction volume. The Bloch surface wave (BSW) excited on surface of a photonic crystal as electromagnetic hosting photonic mode, and altered the optical response of Rb atoms in the vicinity of surface. Coupling of atomic states with BSW confined modes would lead to quantum interference effects and results in nonlinearities in resonant coupling of atoms with BSW. We show Bloch surface wave induced transparency is highly stable under a change of incidence angle. Our results show slight changes in transitions detuning's due to nonlinear interactions like the Casimire-Polder effect under change of localized density of optical states.
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Abstract
In this paper, the thermal stability of a Bloch Surface Wave (BSW) assisted bio-photonic sensor is investigated. The structural analysis is carried out using the transfer matrix method (TMM). The design comprises a truncated one-dimensional photonic crystal (1D-PhC) structure along with a defective top layer. The structural parameters are optimized to excite a BSW at the top interface for an operating wavelength of 632.8 nm. The mode confinement is confirmed by using wavelength interrogation, angular interrogation and surface electric field profile. Further, the effect of thermal variation on BSW excitation angle and sensitivity is carried out. The analysis shows the average variations in excitation angle and sensitivity of about −0.00096 degree/°C and 0.01046 (degree/RIU)/°C, respectively. Additionally, the analysis is also extended towards different lower wavelengths of 400 nm and 550 nm, which provides average variations in the excitation angles of about −0.0027 degree/°C, and 0.0016 degree/°C. This shows that the structural sensitivity response is more thermally stable at the lower wavelength range. Thus, showing its potential applications in designing thermally stable bio-photonic sensors.
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Perani T, Liscidini M. Long-range Bloch surface waves in photonic crystal ridges. OPTICS LETTERS 2020; 45:6534-6537. [PMID: 33258855 DOI: 10.1364/ol.412625] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 11/03/2020] [Indexed: 06/12/2023]
Abstract
We theoretically study light propagation in guided Bloch surface waves (BSWs) supported by photonic crystal ridges. We demonstrate that low propagation losses can be achieved just by a proper design of the multilayer to obtain photonic band gaps for both light polarizations. We present a design strategy based on a Fourier analysis that allows one to obtain intrinsic losses as low as 5 dB/km for a structure operating in the visible spectral range. These results clarify the limiting factors to light propagation in guided BSWs and represent a fundamental step towards the development of BSW-based integrated optical platforms.
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Safronov KR, Gulkin DN, Antropov IM, Abrashitova KA, Bessonov VO, Fedyanin AA. Multimode Interference of Bloch Surface Electromagnetic Waves. ACS NANO 2020; 14:10428-10437. [PMID: 32806066 DOI: 10.1021/acsnano.0c04301] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Integrated photonics aims at on-chip controlling light in the micro- and nanoscale ranges utilizing the waveguide circuits, which include such basic elements as splitters, multiplexers, and phase shifters. Several photonic platforms, including the well-developed silicon-on-insulator and surface-plasmon polaritons ones, operate well mostly in the IR region. However, operating in the visible region is challenging because of the drawbacks originating from absorption or sophisticated fabrication technology. Recently, a new promising all-dielectric platform based on Bloch surface electromagnetic waves (BSWs) in multilayer structures and functioning in the visible range has emerged finding a lot of applications primarily in sensing. Here, we show the effect of multimode interference (MMI) of BSWs and propose a method for implementing the advanced integrated photonic devices on the BSW platform. We determine the main parameters of MMI effect and demonstrate the operation of Mach-Zehnder interferometers with a predefined phase shift proving the principle of MMI BSW-based photonics in the visible spectrum. Our research will be useful for further developing a versatile toolbox of the BSW platform devices which can be essential in integrated photonics, lab-on-chip, and sensing applications.
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Affiliation(s)
- Kirill R Safronov
- Faculty of Physics, Lomonosov Moscow State University, Moscow 119991, Russia
| | - Dmitry N Gulkin
- Faculty of Physics, Lomonosov Moscow State University, Moscow 119991, Russia
| | - Ilya M Antropov
- Faculty of Physics, Lomonosov Moscow State University, Moscow 119991, Russia
| | | | - Vladimir O Bessonov
- Faculty of Physics, Lomonosov Moscow State University, Moscow 119991, Russia
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Moscow 119071, Russia
| | - Andrey A Fedyanin
- Faculty of Physics, Lomonosov Moscow State University, Moscow 119991, Russia
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Perani T, Aurelio D, Liscidini M. Bloch-surface-wave photonic crystal nanobeam cavity. OPTICS LETTERS 2019; 44:5133-5136. [PMID: 31674949 DOI: 10.1364/ol.44.005133] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Accepted: 09/16/2019] [Indexed: 05/27/2023]
Abstract
We theoretically demonstrate a nanobeam cavity based on a photonic crystal ridge that supports localized Bloch surface waves (BSWs) propagating at the truncation interface of a periodic multilayer. Combining the appealing characteristics of a nanobeam cavity (such as flexible geometry, small footprint size, and an etching-free fabrication with the leading lithographic technologies) with the versatility of BSW (whose dispersion relation is finely tunable as compared to other surface waves), this structure may prove to be a customizable visible-to-IR platform, well suited for a number of applications ranging from optical sensing to the control of single-photon emission from embedded nanoemitters such as quantum dots or color centers.
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Wan Y, Cheng M, Zheng Z, Liu K. Polarization-Modulated, Goos⁻Hanchen Shift Sensing for Common Mode Drift Suppression. SENSORS 2019; 19:s19092088. [PMID: 31060331 PMCID: PMC6539583 DOI: 10.3390/s19092088] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 05/01/2019] [Accepted: 05/03/2019] [Indexed: 12/29/2022]
Abstract
A polarization-modulation-based Goos–Hanchen (GH) sensing scheme leveraging the polarization-dependence of the Bloch surface wave enhanced GH shift is proposed and experimentally demonstrated. Based on a simple setup utilizing a liquid crystal modulator to switch the polarization state of the input beam periodically, the alternating positions of the reflected beam for both polarizations are monitored by a lock-in amplifier to handily retrieve the GH shift signal. The conventional direct measurement of the beam position for the target state of polarization is vulnerable to instabilities in the optomechanical setup and alignment. Our proposed scheme provides a sensitive yet robust GH shift-sensing setup where the common mode drift and noise could be suppressed to ensure better system stability.
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Affiliation(s)
- Yuhang Wan
- School of Electronics and Information Engineering, Beihang University, 37 Xueyuan Rd., Beijing 100083, China.
| | - Mengxuan Cheng
- School of Electronics and Information Engineering, Beihang University, 37 Xueyuan Rd., Beijing 100083, China.
| | - Zheng Zheng
- School of Electronics and Information Engineering, Beihang University, 37 Xueyuan Rd., Beijing 100083, China.
- Collaborative Innovation Center of Geospatial Technology, 129 Luoyu Rd., Wuhan 430079, China.
- Beijing Advanced Innovation Center for Big Date-based Precision Medicine, Beihang University, 37 Xueyuan Rd., Beijing 100083, China.
| | - Kai Liu
- School of Electronics and Information Engineering, Beihang University, 37 Xueyuan Rd., Beijing 100083, China.
- Collaborative Innovation Center of Geospatial Technology, 129 Luoyu Rd., Wuhan 430079, China.
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Occhicone A, Sinibaldi A, Sonntag F, Munzert P, Danz N, Michelotti F. Study of fluid dynamics at the boundary wall of a microchannel by Bloch surface waves. OPTICS LETTERS 2019; 44:1932-1935. [PMID: 30985778 DOI: 10.1364/ol.44.001932] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Accepted: 03/09/2019] [Indexed: 06/09/2023]
Abstract
Understanding how a fluid flows at the boundaries when it is confined at the microscale/nanoscale is crucial for a broad range of engineering and biology applications. We propose an experimental technique based on Bloch surface waves sustained by a one-dimensional photonic crystal to evaluate the speed of the contact line, i.e., the triple junction separating three phases, in the low Reynold's number regime, and with a nanometric resolution. Here, we report on the experimental characterization of the translatory motion of the contact line that separates two water solutions with a relatively high refractive index mismatch (7.35×10-3) and its slipping over a solid surface. The advantages are the relative simplicity and economy of the experimental configuration.
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11
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Kovalevich T, Belharet D, Robert L, Ulliac G, Kim MS, Herzig HP, Grosjean T, Bernal MP. Bloch surface waves at the telecommunication wavelength with lithium niobate as the top layer for integrated optics. APPLIED OPTICS 2019; 58:1757-1762. [PMID: 30874213 DOI: 10.1364/ao.58.001757] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Accepted: 01/28/2019] [Indexed: 06/09/2023]
Abstract
Lithium niobate (LN)-based devices are widely used in integrated and nonlinear optics. This material is robust and resistive to high temperatures, which makes the LN-based devices stable, but challenging to fabricate. In this work, we report on the design, manufacturing, and characterization of engineered dielectric media with thin-film LN (TFLN) on top for the coupling and propagation of electromagnetic surface waves at telecommunication wavelengths. The designed one-dimensional photonic crystal (1DPhC) sustains Bloch surface waves (BSWs) at the multilayer-air interface at 1550 nm wavelength with a propagation detected over a distance of 3 mm. The working wavelength and improved BSW propagation parameters open the way for exploration of nonlinear properties of BSW-based devices. It is also expected that these novel devices potentially would be able to modify BSW propagation and coupling by external thermal-electrical stimuli due to the improved quality of the TFLN top layer of 1DPhC.
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Lahijani BV, Descharmes N, Osowiecki G, Barbey R, Herzig HP. Bloch Surface Waves Fabry- Pérot Nanocavity. ACTA ACUST UNITED AC 2018. [DOI: 10.1088/1742-6596/1092/1/012163] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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13
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Wang R, Chen J, Xiang Y, Kuai Y, Wang P, Ming H, Lakowicz JR, Zhang D. Two-Dimensional Photonic Devices based on Bloch Surface Waves with One-Dimensional Grooves. PHYSICAL REVIEW APPLIED 2018; 10:024032. [PMID: 31576366 PMCID: PMC6769415 DOI: 10.1103/physrevapplied.10.024032] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Both experiments and simulations show that the polarization state and propagation path of the Bloch surface waves sustained on a dielectric multilayer, can be manipulated with the grooves inscribed on this multilayer. These grooves can be easily producible, accessible and controllable. Various nano-devices for the Bloch surface waves, such as the launcher, beam splitter, reflector, polarization rotator, and even the photonic single-pole double-throw switch, were all experimentally realized with the properly designed grooves, which are consistent with the numerical simulations. The proposed devices will be basic elements for the two-dimensional photonic system, and will find numerous applications, including integrated photonics, molecular sensing, imaging and micro-manipulation.
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Affiliation(s)
- Ruxue Wang
- Institute of Photonics, Department of Optics and Optical Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, P.R. China
| | - Junxue Chen
- School of Science, Southwest University of Science and Technology, Mianyang, Sichuan 621010, P.R. China
| | - Yifeng Xiang
- Institute of Photonics, Department of Optics and Optical Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, P.R. China
| | - Yan Kuai
- Institute of Photonics, Department of Optics and Optical Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, P.R. China
| | - Pei Wang
- Institute of Photonics, Department of Optics and Optical Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, P.R. China
| | - Hai Ming
- Institute of Photonics, Department of Optics and Optical Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, P.R. China
| | - Joseph R. Lakowicz
- Center for Fluorescence Spectroscopy, Department of Biochemistry and Molecular Biology, University of Maryland School of Medicine, Baltimore, MD 21201, United States
| | - Douguo Zhang
- Institute of Photonics, Department of Optics and Optical Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, P.R. China
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Bloch Surface Waves Using Graphene Layers: An Approach toward In-Plane Photodetectors. APPLIED SCIENCES-BASEL 2018. [DOI: 10.3390/app8030390] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Abstract
In order to enlarge the capability for in-plane manipulation of the Bloch surface wave (BSW), we investigate 2D gradient index (GRIN) optical components using a finite-difference time-domain (FDTD) numerical method. To ease difficulties in fabrication to acquire a continuous index profile of GRIN optical components, we propose a stepwise index profile. For 2D surface wave devices, such discrete index steps can be achieved by stepwise structuring of the top layer, also called the device layer. For the demonstration of the stepwise GRIN optics concept, we consider a Luneburg lens, which is a good example of the GRIN optical component that produces a strong focal spot on the shadow-side curvature of the lens. The limited index contrast of the BSW systems loosens the confinement of the focal spot. A mitigation plan is to elongate the circular geometry to the prolate ellipse. BSW-based Luneburg lenses with a relatively small number of steps and an elliptical geometry are demonstrated with comparable performances to a standard Luneburg lens.
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Photonic Crystal-Supported Long-Range Surface Plasmon-Polaritons Propagating Along High-Quality Silver Nanofilms. APPLIED SCIENCES-BASEL 2018. [DOI: 10.3390/app8020248] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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17
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Bloch Surface Wave Photonic Device Fabricated by Femtosecond Laser Polymerisation Technique. APPLIED SCIENCES-BASEL 2018. [DOI: 10.3390/app8010063] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Vosoughi Lahijani B, Badri Ghavifekr H, Dubey R, Kim MS, Vartiainen I, Roussey M, Herzig HP. Experimental demonstration of critical coupling of whispering gallery mode cavities on a Bloch surface wave platform. OPTICS LETTERS 2017; 42:5137-5140. [PMID: 29240156 DOI: 10.1364/ol.42.005137] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
We experimentally demonstrate critical coupling of whispering gallery mode (WGM) disk resonators implemented on a Bloch surface wave platform using scanning near-field optical microscopy. The studied structure is a 60 nm thick TiO2 WGM disk cavity (radius of 100 μm) operating within the C-band telecommunication wavelength. An extinction ratio of 26 dB and a quality factor of 2200 are measured. Such a high extinction ratio verifies the critical coupling of the WGM resonator. This result paves the way to planar optical signal processing devices based on the proposed geometry, for which a critical coupling condition is a guarantee of optimum performance.
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Bloch Surface Waves for MoS2 Emission Coupling and Polariton Systems. APPLIED SCIENCES-BASEL 2017. [DOI: 10.3390/app7121217] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Kovalevich T, Boyer P, Suarez M, Salut R, Kim MS, Herzig HP, Bernal MP, Grosjean T. Polarization controlled directional propagation of Bloch surface wave. OPTICS EXPRESS 2017; 25:5710-5715. [PMID: 28380827 DOI: 10.1364/oe.25.005710] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Bloch surface waves (BSWs) are recently developing alternative to surface plasmon polaritons (SPPs). Due to dramatically enhanced propagation distance and strong field confinement these surface states can be successfully used in on-chip all-optical integrated devices of increased complexity. In this work we propose a highly miniaturized grating based BSW coupler which is gathering launching and directional switching functionalities in a single element. This device allows to control with polarization the propagation direction of Bloch surface waves at subwavelength scale, thus impacting a large panel of domains such as optical circuitry, function design, quantum optics, etc.
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Kovalevich T, Ndao A, Suarez M, Tumenas S, Balevicius Z, Ramanavicius A, Baleviciute I, Häyrinen M, Roussey M, Kuittinen M, Grosjean T, Bernal MP. Tunable Bloch surface waves in anisotropic photonic crystals based on lithium niobate thin films. OPTICS LETTERS 2016; 41:5616-5619. [PMID: 27906253 DOI: 10.1364/ol.41.005616] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
We present an original type of one-dimensional photonic crystal that includes one anisotropic layer made of a lithium niobate thin film. We demonstrate the versatility of such a device sustaining different Bloch surface waves (BSWs), depending on the orientation of the incident wave. By varying the orientation of the illumination of the multilayer, we measured an angle variation of 7° between the BSWs corresponding to the extraordinary and the ordinary index of the lithium niobate thin film. The potential of such a platform opens the way to novel tunable and active planar optics based on the electro- and thermo-optical properties of lithium niobate.
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