1
|
Wang Y, Huang W, Lin YS, Yang BR. A tunable color filter using a hybrid metasurface composed of ZnO nanopillars and Ag nanoholes. NANOSCALE ADVANCES 2022; 4:3624-3633. [PMID: 36134352 PMCID: PMC9400519 DOI: 10.1039/d2na00286h] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 07/20/2022] [Indexed: 06/16/2023]
Abstract
We propose the design of symmetrical and asymmetrical tunable color filters (TCFs) by using hybrid metasurface nanostructures in the visible wavelength range. They are composed of circular zinc oxide (ZnO) nanopillars and silver (Ag) nanoholes on a silica substrate. These TCFs exhibit ultrahigh transmission intensity over 90%, different tuning ranges, and polarization-dependent/independent characteristics. By changing the distance between the ZnO nanopillars and silica substrate, the resonant wavelength of TCFs could be tuned remarkably. Moreover, we also demonstrate the stability of TCFs under different disturbances and angles of incident light. Furthermore, the resonant wavelengths are red-shifted by increasing the ambient refraction index. TCFs exhibit great tunability and ultrahigh transmission intensity up to 100%. This design opens up an avenue to widespread optoelectronic applications, such as ultrahigh resolution color displays, high-efficiency biosensors, pressure sensors, and selective color filters.
Collapse
Affiliation(s)
- Yicheng Wang
- School of Electronics and Information Technology, Sun Yat-Sen University Guangzhou 510006 China
| | - Weikai Huang
- School of Electronics and Information Technology, Sun Yat-Sen University Guangzhou 510006 China
| | - Yu-Sheng Lin
- School of Electronics and Information Technology, Sun Yat-Sen University Guangzhou 510006 China
| | - Bo-Ru Yang
- School of Electronics and Information Technology, Sun Yat-Sen University Guangzhou 510006 China
| |
Collapse
|
2
|
Balaur E, Sadatnajafi C, Abbey B. Optical barcoding using polarisation sensitive plasmonic biosensors for the detection of self-assembled monolayers. Sci Rep 2022; 12:13081. [PMID: 35906365 PMCID: PMC9338318 DOI: 10.1038/s41598-022-16804-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Accepted: 07/15/2022] [Indexed: 11/11/2022] Open
Abstract
Periodic subwavelength apertures have the ability to passively detect variations in the dielectric properties of the local sample environment through modification of the plasmon resonances associated with these structures. The resulting resonance peak can effectively provide a ‘fingerprint’ indicative of the dielectric properties of the medium within the near-surface region. Here we report on the use of bimodal silver-based plasmonic colour filters for molecular sensing. Firstly, by exploring the optical output of these devices as a function of the incident polarisation for a range of different analytes of known refractive index, we were able to both maximise and quantify their sensitivity. We then apply this concept to the real-time monitoring of the formation of self-assembled monolayers based on detection of the optical output using a spectrometer. This highlights the potential for bimodal plasmonic devices to be able to dynamically monitor variations in the local environment down to the level of single molecules without the need for specific functionalisation or labelling. Advantages of using this technique include the ability for these devices to be miniaturised and to dynamically tailor their optical output permitting the analysis of very small sample volumes and maximise their dynamic range for a specific analyte.
Collapse
Affiliation(s)
- Eugeniu Balaur
- Department of Mathematical and Physical Sciences, School of Engineering, Computing and Mathematical Sciences, Bundoora, VIC, 3086, Australia. .,La Trobe Institute for Molecular Science, La Trobe University, Bundoora, VIC, 3086, Australia.
| | - Catherine Sadatnajafi
- Department of Mathematical and Physical Sciences, School of Engineering, Computing and Mathematical Sciences, Bundoora, VIC, 3086, Australia.,La Trobe Institute for Molecular Science, La Trobe University, Bundoora, VIC, 3086, Australia
| | - Brian Abbey
- Department of Mathematical and Physical Sciences, School of Engineering, Computing and Mathematical Sciences, Bundoora, VIC, 3086, Australia.,La Trobe Institute for Molecular Science, La Trobe University, Bundoora, VIC, 3086, Australia
| |
Collapse
|
3
|
Ye Y, Gu Y, Wang F, Cai Y, Chen L, Xu Y. Full-color reflective filter in a large area exploiting a sandwiched metasurface. OPTICS EXPRESS 2022; 30:23725-23733. [PMID: 36225047 DOI: 10.1364/oe.460810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 06/06/2022] [Indexed: 06/16/2023]
Abstract
Metasurface-based color filters show great potential in imaging devices and color printing. However, it is still a great challenge to meet the high demand for large-area flexible displays with structural color filters. Here, a reflective color filter is developed with a sandwiched metasurface, where the photoresist grating, complementary silver grating and silicon nitride grating are sequentially stacked on the substrate. Analytical results show that bandpass reflective spectra can be achieved due to the combined influence of guided mode resonance and cavity resonance, and full-spectrum colors including three primary colors can be generated by merely varying the period of the metasurface. With only photolithography and deposition technology involved, large-area samples incorporating pixelated metasurfaces are easily fabricated. Metasurfaces with three periods of 540 nm, 400 nm and 320 nm are experimentally obtained having peak reflective efficiency of ∼ 60%, demonstrating red, green and blue colors as theoretical results. A stripe sample with the structural period varying from 250 nm to 550 nm is fabricated in an area of 10 mm × 30 mm, displaying full-color reflections as simulated. Finally, with metasurfaces of three structural periods, the pixelated Soochow University logo is fabricated in a larger area of ∼ 30 mm × 30 mm. Therefore, the proposed structure shows high compatible to roll-to-roll nano-imprinting for large-area flexible displays, with the photoresist film can be easily substituted by UV film in addition.
Collapse
|
4
|
Rossi S, Olsson O, Chen S, Shanker R, Banerjee D, Dahlin A, Jonsson MP. Dynamically Tuneable Reflective Structural Coloration with Electroactive Conducting Polymer Nanocavities. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2105004. [PMID: 34626028 DOI: 10.1002/adma.202105004] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 08/20/2021] [Indexed: 06/13/2023]
Abstract
Dynamic control of structural colors across the visible spectrum with high brightness has proven to be a difficult challenge. Here, this is addressed with a tuneable reflective nano-optical cavity that uses an electroactive conducting polymer (poly(thieno[3,4-b]thiophene)) as spacer layer. Electrochemical doping and dedoping of the polymer spacer layer provides reversible tuning of the cavity's structural color throughout the entire visible range and beyond. Furthermore, the cavity provides high peak reflectance that varies only slightly between the reduced and oxidized states of the polymer. The results indicate that the polymer undergoes large reversible thickness changes upon redox tuning, aided by changes in optical properties and low visible absorption. The electroactive cavity concept may find particular use in reflective displays, by opening for tuneable monopixels that eliminate limitations in brightness of traditional subpixel-based systems.
Collapse
Affiliation(s)
- Stefano Rossi
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, Norrköping, 60174, Sweden
| | - Oliver Olsson
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Gothenburg, 41296, Sweden
| | - Shangzhi Chen
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, Norrköping, 60174, Sweden
| | - Ravi Shanker
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, Norrköping, 60174, Sweden
| | - Debashree Banerjee
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, Norrköping, 60174, Sweden
| | - Andreas Dahlin
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Gothenburg, 41296, Sweden
| | - Magnus P Jonsson
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, Norrköping, 60174, Sweden
| |
Collapse
|
5
|
Colorimetric histology using plasmonically active microscope slides. Nature 2021; 598:65-71. [PMID: 34616057 DOI: 10.1038/s41586-021-03835-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Accepted: 07/19/2021] [Indexed: 11/08/2022]
Abstract
The human eye can distinguish as many as 10,000 different colours but is far less sensitive to variations in intensity1, meaning that colour is highly desirable when interpreting images. However, most biological samples are essentially transparent, and nearly invisible when viewed using a standard optical microscope2. It is therefore highly desirable to be able to produce coloured images without needing to add any stains or dyes, which can alter the sample properties. Here we demonstrate that colorimetric histology images can be generated using full-sized plasmonically active microscope slides. These slides translate subtle changes in the dielectric constant into striking colour contrast when samples are placed upon them. We demonstrate the biomedical potential of this technique, which we term histoplasmonics, by distinguishing neoplastic cells from normal breast epithelium during the earliest stages of tumorigenesis in the mouse MMTV-PyMT mammary tumour model. We then apply this method to human diagnostic tissue and validate its utility in distinguishing normal epithelium, usual ductal hyperplasia, and early-stage breast cancer (ductal carcinoma in situ). The colorimetric output of the image pixels is compared to conventional histopathology. The results we report here support the hypothesis that histoplasmonics can be used as a novel alternative or adjunct to general staining. The widespread availability of this technique and its incorporation into standard laboratory workflows may prove transformative for applications extending well beyond tissue diagnostics. This work also highlights opportunities for improvements to digital pathology that have yet to be explored.
Collapse
|
6
|
Jung Y, Jung H, Choi H, Lee H. Polarization Selective Color Filter Based on Plasmonic Nanograting Embedded Etalon Structures. NANO LETTERS 2020; 20:6344-6350. [PMID: 32816490 DOI: 10.1021/acs.nanolett.0c01738] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In this paper, we propose a polarization-selective color filter that can generate two different color informations simultaneously depending on the polarization direction. The proposed color filter is mainly composed of the etalon structure to generate the color by the structural resonance properties while the upper layer of the etalon is made of plasmonic nanogratings to promote polarization-dependent color properties. When the duty ratio of the silver nanogratings is fixed, the proposed color filter can maintain identical optical properties for orthogonal polarization, while the etalon structure of the proposed color filter can manipulate different color information depending on the cavity height for the horizontal polarization. Finally, we experimentally confirm that polarization-dependent security images can be generated using the proposed color filters with a fixed duty ratio of various nanograting arrays.
Collapse
Affiliation(s)
- Yonghee Jung
- Department of Information Communication, Materials, and Chemistry Convergence Technology, Soongsil University, Seoul 06978, South Korea
| | - Hyunseung Jung
- School of Electronic Engineering, Soongsil University, Seoul 06978, South Korea
| | - Hyunyong Choi
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, South Korea
| | - Hojin Lee
- Department of Information Communication, Materials, and Chemistry Convergence Technology, Soongsil University, Seoul 06978, South Korea
- School of Electronic Engineering, Soongsil University, Seoul 06978, South Korea
| |
Collapse
|
7
|
Ultrahigh resolution and color gamut with scattering-reducing transmissive pixels. Nat Commun 2019; 10:4782. [PMID: 31636260 PMCID: PMC6803669 DOI: 10.1038/s41467-019-12689-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2018] [Accepted: 09/13/2019] [Indexed: 11/16/2022] Open
Abstract
While plasmonic designs have dominated recent trends in structural color, schemes using localized surface plasmon resonances and surface plasmon polaritons that simultaneously achieve high color vibrancy at ultrahigh resolution have been elusive because of tradeoffs between size and performance. Herein we demonstrate vibrant and size-invariant transmissive type multicolor pixels composed of hybrid TiOx-Ag core-shell nanowires based on reduced scattering at their electric dipolar Mie resonances. This principle permits the hybrid nanoresonator to achieve the widest color gamut (~74% sRGB area coverage), linear color mixing, and the highest reported single color dots-per-inch (58,000~141,000) in transmission mode. Exploiting such features, we further show that an assembly of distinct nanoresonators can constitute a multicolor pixel for use in multispectral imaging, with a size that is ~10-folds below the Nyquist limit using a typical high NA objective lens. Tradeoffs between size and performance have limited plasmonic structural color vibrancy at high resolution. Here the authors present a nanophotonic resonant metal-coated nanowire capable of being used as a size invariant, vibrant multicolor pixel.
Collapse
|
8
|
Gao J, Gao J, Yang H, Liu H, Wang X, Wang K, Liu X, Li Q, Wang Y, Li Z, Gao R, Zhang Z. Cavity-driven hybrid plasmonic ultra-narrow bandpass filter. OPTICS EXPRESS 2019; 27:20397-20411. [PMID: 31510134 DOI: 10.1364/oe.27.020397] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 06/20/2019] [Indexed: 06/10/2023]
Abstract
We propose a novel compound grating structure that exhibits a tunable ultra-narrowband transmission in the near infrared regime. The thin microstructure can realize a steep wave form through a Fano-like resonance by coupling different propagation-type SPP modes and with a narrow line width formed by the energy band gap. Additionally, the out-of-band suppression is remarkably enhanced. It effectively solves the constraint relationship between high transmittance, narrow line width, and weak side peak of the plasmonic filter, and the structure is suitable for integration with detectors in the near infrared regime.
Collapse
|
9
|
Greybush NJ, Charipar K, Geldmeier JA, Bauman SJ, Johns P, Naciri J, Charipar N, Park K, Vaia RA, Fontana J. Dynamic Plasmonic Pixels. ACS NANO 2019; 13:3875-3883. [PMID: 30794377 DOI: 10.1021/acsnano.9b00905] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Information display utilizing plasmonic color generation has recently emerged as an alternative paradigm to traditional printing and display technologies. However, many implementations so far have either presented static pixels with a single display state or rely on relatively slow switching mechanisms such as chemical transformations or liquid crystal transitions. Here, we demonstrate spatial, spectral, and temporal control of light using dynamic plasmonic pixels that function through the electric-field-induced alignment of plasmonic nanorods in organic suspensions. By tailoring the geometry and composition (Au and Au@Ag) of the nanorods, we illustrate light modulation across a significant portion of the visible and infrared spectrum (600-2400 nm). The fast (∼30 μs), reversible nanorod alignment is manifested as distinct color changes, characterized by shifts of observed chromaticity and luminance. Integration into larger device architectures is showcased by the fabrication of a seven-segment numerical indicator. The control of light on demand achieved in these dynamic plasmonic pixels establishes a favorable platform for engineering high-performance optical devices.
Collapse
Affiliation(s)
- Nicholas J Greybush
- United States Naval Research Laboratory , 4555 Overlook Ave, SW , Washington , DC 20375 , United States
| | - Kristin Charipar
- United States Naval Research Laboratory , 4555 Overlook Ave, SW , Washington , DC 20375 , United States
| | - Jeffrey A Geldmeier
- United States Naval Research Laboratory , 4555 Overlook Ave, SW , Washington , DC 20375 , United States
| | - Stephen J Bauman
- University of Arkansas Fayetteville , 3189 Bell, 1 University of Arkansas, 800 West Dickson , Fayetteville , Arkansas 72701 , United States
| | - Paul Johns
- United States Naval Research Laboratory , 4555 Overlook Ave, SW , Washington , DC 20375 , United States
| | - Jawad Naciri
- United States Naval Research Laboratory , 4555 Overlook Ave, SW , Washington , DC 20375 , United States
| | - Nicholas Charipar
- United States Naval Research Laboratory , 4555 Overlook Ave, SW , Washington , DC 20375 , United States
| | - Kyoungweon Park
- Air Force Research Laboratory , AFRL 2941 Hobson Way , Wright-Patterson AFB , Ohio 45433 , United States
| | - Richard A Vaia
- Air Force Research Laboratory , AFRL 2941 Hobson Way , Wright-Patterson AFB , Ohio 45433 , United States
| | - Jake Fontana
- United States Naval Research Laboratory , 4555 Overlook Ave, SW , Washington , DC 20375 , United States
| |
Collapse
|
10
|
Prasad A, Choi J, Jia Z, Park S, Gartia MR. Nanohole array plasmonic biosensors: Emerging point-of-care applications. Biosens Bioelectron 2019; 130:185-203. [PMID: 30738247 PMCID: PMC6475599 DOI: 10.1016/j.bios.2019.01.037] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 01/03/2019] [Accepted: 01/18/2019] [Indexed: 01/18/2023]
Abstract
Point-of-care (POC) applications have expanded hugely in recent years and is likely to continue, with an aim to deliver cheap, portable, and reliable devices to meet the demands of healthcare industry. POC devices are designed, prototyped, and assembled using numerous strategies but the key essential features that biosensing devices require are: (1) sensitivity, (2) selectivity, (3) specificity, (4) repeatability, and (5) good limit of detection. Overall the fabrication and commercialization of the nanohole array (NHA) setup to the outside world still remains a challenge. Here, we review the various methods of NHA fabrication, the design criteria, the geometrical features, the effects of surface plasmon resonance (SPR) on sensing as well as current state-of-the-art of existing NHA sensors. This review also provides easy-to-understand examples of NHA-based POC biosensing applications, its current status, challenges, and future prospects.
Collapse
Affiliation(s)
- Alisha Prasad
- Department of Mechanical and Industrial Engineering, Louisiana State University, Baton Rouge, LA 70803, USA
| | - Junseo Choi
- Department of Mechanical and Industrial Engineering, Louisiana State University, Baton Rouge, LA 70803, USA; NIH Center for BioModular Multiscale Systems for Precision Medicine, Louisiana State University, Baton Rouge, LA 70803, USA
| | - Zheng Jia
- Department of Mechanical and Industrial Engineering, Louisiana State University, Baton Rouge, LA 70803, USA; NIH Center for BioModular Multiscale Systems for Precision Medicine, Louisiana State University, Baton Rouge, LA 70803, USA
| | - Sunggook Park
- Department of Mechanical and Industrial Engineering, Louisiana State University, Baton Rouge, LA 70803, USA; NIH Center for BioModular Multiscale Systems for Precision Medicine, Louisiana State University, Baton Rouge, LA 70803, USA.
| | - Manas Ranjan Gartia
- Department of Mechanical and Industrial Engineering, Louisiana State University, Baton Rouge, LA 70803, USA.
| |
Collapse
|
11
|
Kim SJ, Choi HK, Lee H, Hong SH. Solution-Processable Nanocrystal-Based Broadband Fabry-Perot Absorber for Reflective Vivid Color Generation. ACS APPLIED MATERIALS & INTERFACES 2019; 11:7280-7287. [PMID: 30746932 DOI: 10.1021/acsami.8b19157] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Structural reflective colors based on Fabry-Perot (F-P) cavity resonances have attracted tremendous interest for diverse applications, such as color decoration and printing, display, and imaging devices. However, the asymmetric F-P cavity-based reflective colors proposed to date have low color purity and have difficulty to realize a desired vivid color because of a narrow absorption band characteristic in the visible light region. Here, a solution-processed, F-P ultra-broadband light absorber is newly proposed using a high lossy nanoporous material for vivid color generation. An asymmetric metal-insulator-metal structure consists of a high lossy nanoporous metallic film with coupled silver nanocrystals (Ag NCs) as the top layer. The absorbers not only increase the maximum absorption intensity up to ∼98% but also widen the bandwidth by 300 nm, resulting in high color purity in micrometer-scale pixels. Furthermore, the solution-based absorber shows potential to realize a high-resolution display pixel and anticounterfeiting devices having mechanical flexibility using the inkjet printing technology.
Collapse
Affiliation(s)
- Soo-Jung Kim
- Department of Materials Science and Engineering , Korea University , Anam-dong 5-1 , Sungbuk-gu, Seoul 136-701 , Republic of Korea
| | - Hyun-Kyung Choi
- ICT Materials & Components Research Laboratory , ETRI , 218 Gajeong-ro , Yuseong-gu, Daejeon 305-700 , Republic of Korea
| | - Heon Lee
- Department of Materials Science and Engineering , Korea University , Anam-dong 5-1 , Sungbuk-gu, Seoul 136-701 , Republic of Korea
| | - Sung-Hoon Hong
- ICT Materials & Components Research Laboratory , ETRI , 218 Gajeong-ro , Yuseong-gu, Daejeon 305-700 , Republic of Korea
| |
Collapse
|
12
|
Xiong K, Tordera D, Jonsson MP, Dahlin AB. Active control of plasmonic colors: emerging display technologies. REPORTS ON PROGRESS IN PHYSICS. PHYSICAL SOCIETY (GREAT BRITAIN) 2019; 82:024501. [PMID: 30640724 DOI: 10.1088/1361-6633/aaf844] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
In recent years there has been a growing interest in the use of plasmonic nanostructures for color generation, a technology that dates back to ancient times. Plasmonic structural colors have several attractive features but once the structures are prepared the colors are normally fixed. Lately, several concepts have emerged for actively tuning the colors, which opens up for many new potential applications, the most obvious being novel color displays. In this review we summarize recent progress in active control of plasmonic colors and evaluate them with respect to performance criteria for color displays. It is suggested that actively controlled plasmonic colors are generally less interesting for emissive displays but could be useful for new types of electrochromic devices relying on ambient light (electronic paper). Furthermore, there are several other potential applications such as images to be revealed on demand and colorimetric sensors.
Collapse
Affiliation(s)
- Kunli Xiong
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, 41296 Göteborg, Sweden
| | | | | | | |
Collapse
|
13
|
Kim H, Kim M, Chang T, Baucour A, Jeon S, Kim N, Choi HJ, Lee H, Shin J. Bright and vivid plasmonic color filters having dual resonance modes with proper orthogonality. OPTICS EXPRESS 2018; 26:27403-27417. [PMID: 30469809 DOI: 10.1364/oe.26.027403] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Accepted: 09/10/2018] [Indexed: 06/09/2023]
Abstract
The mode orthogonality fundamentally influences the scattering spectra of multi-resonance systems, such as plasmonic color filters. We show that planar arrays of silver nanostructures with dual localized surface plasmon resonances and the right mode orthogonality can function as transmissive RGB color filters with peak transmittances higher than 70%, and color gamut areas larger than 90% of the sRGB space. These are the brightest and most saturated of all designs proposed thus far. We present the Pareto frontier from designs with more than 80% peak transmittance, to designs that achieve a color gamut larger than 120% of the sRGB space.
Collapse
|
14
|
Kim SJ, Seong M, Yun HW, Ahn J, Lee H, Oh SJ, Hong SH. Chemically Engineered Au-Ag Plasmonic Nanostructures to Realize Large Area and Flexible Metamaterials. ACS APPLIED MATERIALS & INTERFACES 2018; 10:25652-25659. [PMID: 29979023 DOI: 10.1021/acsami.8b07454] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
We developed a simple and systematic method to fabricate optically tunable and thermally and chemically stable Au-Ag nanocrystal-based plasmonic metamaterials. An Ag nanocrystal-based metamaterial with desirable optical properties was fabricated via nanoimprinting and ligand-exchange process. Its optical properties were controlled by selectively substituting Ag atoms with Au atoms through a spontaneous galvanic replacement reaction. The developed Au-Ag-based metamaterials provide excellent tunable plasmonic properties required for various applications in the visible and near-infrared regions by controlling the Au-Ag composition according to the conditions of the galvanic displacement. Furthermore, their thermal and chemical stabilities significantly improved because of the protective Au thin layer on the surface. Using this developed process, chemically and thermally stable and flexible plasmonic metamaterials were successfully fabricated on a flexible polyester terephthalate substrate.
Collapse
Affiliation(s)
- Soo-Jung Kim
- Department of Materials Science and Engineering , Korea University , Anam-dong 5-1, Sungbuk-Ku, Seoul 136-701 , Republic of Korea
| | - Mingi Seong
- Department of Materials Science and Engineering , Korea University , Anam-dong 5-1, Sungbuk-Ku, Seoul 136-701 , Republic of Korea
| | - Hye-Won Yun
- Department of Materials Science and Engineering , Korea University , Anam-dong 5-1, Sungbuk-Ku, Seoul 136-701 , Republic of Korea
- ICT Materials & Components Research Laboratory , ETRI , Daejeon 305-700 , Republic of Korea
| | - Junhyuk Ahn
- Department of Materials Science and Engineering , Korea University , Anam-dong 5-1, Sungbuk-Ku, Seoul 136-701 , Republic of Korea
| | - Heon Lee
- Department of Materials Science and Engineering , Korea University , Anam-dong 5-1, Sungbuk-Ku, Seoul 136-701 , Republic of Korea
| | - Soong Ju Oh
- Department of Materials Science and Engineering , Korea University , Anam-dong 5-1, Sungbuk-Ku, Seoul 136-701 , Republic of Korea
| | - Sung-Hoon Hong
- ICT Materials & Components Research Laboratory , ETRI , Daejeon 305-700 , Republic of Korea
| |
Collapse
|
15
|
Lee T, Jang J, Jeong H, Rho J. Plasmonic- and dielectric-based structural coloring: from fundamentals to practical applications. NANO CONVERGENCE 2018; 5:1. [PMID: 29375956 PMCID: PMC5762775 DOI: 10.1186/s40580-017-0133-y] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Accepted: 12/26/2017] [Indexed: 05/21/2023]
Abstract
Structural coloring is production of color by surfaces that have microstructure fine enough to interfere with visible light; this phenomenon provides a novel paradigm for color printing. Plasmonic color is an emergent property of the interaction between light and metallic surfaces. This phenomenon can surpass the diffraction limit and achieve near unlimited lifetime. We categorize plasmonic color filters according to their designs (hole, rod, metal-insulator-metal, grating), and also describe structures supported by Mie resonance. We discuss the principles, and the merits and demerits of each color filter. We also discuss a new concept of color filters with tunability and reconfigurability, which enable printing of structural color to yield dynamic coloring at will. Approaches for dynamic coloring are classified as liquid crystal, chemical transition and mechanical deformation. At the end of review, we highlight a scale-up of fabrication methods, including nanoimprinting, self-assembly and laser-induced process that may enable real-world application of structural coloring.
Collapse
Affiliation(s)
- Taejun Lee
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673 Republic of Korea
| | - Jaehyuck Jang
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673 Republic of Korea
| | - Heonyeong Jeong
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673 Republic of Korea
| | - Junsuk Rho
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673 Republic of Korea
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673 Republic of Korea
| |
Collapse
|
16
|
Koirala I, Shrestha VR, Park CS, Gao S, Lee SS, Choi DY. All Dielectric Transmissive Structural Multicolor Pixel Incorporating a Resonant Grating in Hydrogenated Amorphous Silicon. Sci Rep 2017; 7:13574. [PMID: 29051592 PMCID: PMC5648771 DOI: 10.1038/s41598-017-14093-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Accepted: 09/29/2017] [Indexed: 11/10/2022] Open
Abstract
All dielectric transmissive type polarization-tuned structural multicolor pixels (MCPs) are proposed and demonstrated based on a one-dimensional hydrogenated amorphous silicon (a-Si:H) grating integrated with a silicon nitride waveguide. Both bandpass and bandstop transmission filtering characteristics in the visible regime, centered at the same wavelength, have been achieved by tailoring the structural parameters including the duty ratio of the grating and the thickness of the dielectric waveguide. For the three manufactured MCPs, the transmission peak exceeds 70% for the transverse electric (TE) polarization and 90% for the transverse magnetic (TM) polarization as observed at the resonance and off-resonance wavelength, respectively. The polarization-switched transmissions are attributed to the guided mode resonance initiated by the interaction of the a-Si:H grating and the dielectric waveguide. A broad color palette covering the entire visible band was successfully realized from a suite of MCPs with varying grating pitches. The proposed structural color pixels are expected to facilitate the construction of dynamic displays, image sensors, optical data storage, security tags, and so forth.
Collapse
Affiliation(s)
- Ishwor Koirala
- Department of Electronic Engineering, Kwangwoon University, 20 Kwangwoon-ro, Nowon-gu, Seoul, 01897, South Korea
| | - Vivek Raj Shrestha
- Department of Electronic Engineering, Kwangwoon University, 20 Kwangwoon-ro, Nowon-gu, Seoul, 01897, South Korea.,School of Physics, The University of Melbourne, Melbourne, Victoria 3010, Australia
| | - Chul-Soon Park
- Department of Electronic Engineering, Kwangwoon University, 20 Kwangwoon-ro, Nowon-gu, Seoul, 01897, South Korea
| | - Song Gao
- Department of Electronic Engineering, Kwangwoon University, 20 Kwangwoon-ro, Nowon-gu, Seoul, 01897, South Korea
| | - Sang-Shin Lee
- Department of Electronic Engineering, Kwangwoon University, 20 Kwangwoon-ro, Nowon-gu, Seoul, 01897, South Korea.
| | - Duk-Yong Choi
- Laser Physics Centre, Research School of Physics and Engineering, Australian National University, Canberra, ACT 2601, Australia
| |
Collapse
|
17
|
Polarization-Controlled Broad Color Palette Based on an Ultrathin One-Dimensional Resonant Grating Structure. Sci Rep 2017; 7:40073. [PMID: 28067264 PMCID: PMC5220310 DOI: 10.1038/srep40073] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Accepted: 11/30/2016] [Indexed: 11/11/2022] Open
Abstract
Highly efficient polarization-tuned structural color filters, which are based on a one- dimensional resonant aluminum grating that is integrated with a silicon nitride waveguide, are proposed and demonstrated to feature a broad color palette. For such a metallic grating structure, transmissive color filtering is only feasible for the incident transverse-magnetic (TM) polarization due to its high reflection regarding the transverse-electric (TE) case; however, polarization-tuned customized colors can be efficiently achieved by optimizing the structural parameters like the duty ratio of the metallic grating. For the fabricated color filters, the transmission peaks, which are imputed to the resonance between the incident light and the guided modes that are supported by the dielectric waveguide, provided efficiencies as high as 90% and 70% for the TM and TE polarizations, respectively, as intended. Through the tailoring of the polarization, a group of filters with different grating periods were successfully exploited to produce a broad color palette spanning the entire visible band. Lastly, a nanoscale alphabetic pattern featuring a flexible combination of colorations was practically constructed via an arrangement of horizontal and vertical gratings.
Collapse
|