All-optical switching of structural color with a Fabry–Pérot cavity
Fine tuning the optical responses of thin-film devices is highly attractive for emerging applications, such as optical memories, solar cells, nanophotonics, and photodetectors. Even though thin-film technology is well established, dynamically switching the optical responses of thin films after fabri...
| Κύριοι συγγραφείς: | , , , , , , , , |
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| Άλλοι συγγραφείς: | |
| Μορφή: | Journal Article |
| Γλώσσα: | English |
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2024
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| Θέματα: | |
| Διαθέσιμο Online: | https://hdl.handle.net/10356/174945 |
| _version_ | 1826116208157523968 |
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| author | Abdelraouf, Omar A. M. Wang, Xincai Goh, Ken Choon Hwa Lim, Nelson Chee Beng Ng, Siu Kit Wang, Wei De Wang, Renshaw Xiao Wang, Qi Jie Liu, Hong |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Abdelraouf, Omar A. M. Wang, Xincai Goh, Ken Choon Hwa Lim, Nelson Chee Beng Ng, Siu Kit Wang, Wei De Wang, Renshaw Xiao Wang, Qi Jie Liu, Hong |
| author_sort | Abdelraouf, Omar A. M. |
| collection | NTU |
| description | Fine tuning the optical responses of thin-film devices is highly attractive for emerging applications, such as optical memories, solar cells, nanophotonics, and photodetectors. Even though thin-film technology is well established, dynamically switching the optical responses of thin films after fabrication remains challenging because of passive materials and device structures. This work demonstrates an approach for all-optical switching of structural colors excited by a Fabry–Pérot (FP) cavity inside a metal–dielectric–metal (MDM) thin-film stack. A low-loss phase-change material (PCM), that is, antimony trisulfide (Sb2S3), which is embedded in the stack, enables efficient FP cavity resonance in the visible spectrum. 1) Color reflectivity of >60%; 2) multistructural colors using a single MDM cavity; 3) a wide dynamic range of colors of up to ≈220 nm; and 4) a gamut coverage of more than 80% of standard RGB (sRGB) are achieved. The all-optical switching is realized via the crystallization and reamorphization of Sb2S3 using continuous-wave and pulsed lasers, respectively. The findings provide a framework for the cost-effective realization of dynamically responsive thin-film-based nanophotonic devices. |
| first_indexed | 2024-10-01T04:07:34Z |
| format | Journal Article |
| id | ntu-10356/174945 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:07:34Z |
| publishDate | 2024 |
| record_format | dspace |
| spelling | ntu-10356/1749452024-04-19T15:53:07Z All-optical switching of structural color with a Fabry–Pérot cavity Abdelraouf, Omar A. M. Wang, Xincai Goh, Ken Choon Hwa Lim, Nelson Chee Beng Ng, Siu Kit Wang, Wei De Wang, Renshaw Xiao Wang, Qi Jie Liu, Hong School of Electrical and Electronic Engineering School of Physical and Mathematical Sciences Institute of Materials Research and Engineering, A*STAR Centre for OptoElectronics and Biophotonics (COEB) Engineering All-optical switching Antimony trisulfide Fine tuning the optical responses of thin-film devices is highly attractive for emerging applications, such as optical memories, solar cells, nanophotonics, and photodetectors. Even though thin-film technology is well established, dynamically switching the optical responses of thin films after fabrication remains challenging because of passive materials and device structures. This work demonstrates an approach for all-optical switching of structural colors excited by a Fabry–Pérot (FP) cavity inside a metal–dielectric–metal (MDM) thin-film stack. A low-loss phase-change material (PCM), that is, antimony trisulfide (Sb2S3), which is embedded in the stack, enables efficient FP cavity resonance in the visible spectrum. 1) Color reflectivity of >60%; 2) multistructural colors using a single MDM cavity; 3) a wide dynamic range of colors of up to ≈220 nm; and 4) a gamut coverage of more than 80% of standard RGB (sRGB) are achieved. The all-optical switching is realized via the crystallization and reamorphization of Sb2S3 using continuous-wave and pulsed lasers, respectively. The findings provide a framework for the cost-effective realization of dynamically responsive thin-film-based nanophotonic devices. Agency for Science, Technology and Research (A*STAR) Ministry of Education (MOE) Published version X.R.W. acknowledges support from Academic Research Fund (AcRF) Tier 2 (grant nos. MOE-T2EP50120-0006 and MOE-T2EP50220-0005) and Tier 3 (grant no. MOE2018-T3-1-002) from Singapore Ministry of Education and the Agency for Science, Technology and Research (A*STAR) under its AME IRG grant (project no. A20E5c0094). H.L. and Q.J.W. acknowledge the Agency for Science, Technology and Research (A*STAR) under its tunable metasurface grant (grant no. A18A7b0058). 2024-04-18T06:14:25Z 2024-04-18T06:14:25Z 2023 Journal Article Abdelraouf, O. A. M., Wang, X., Goh, K. C. H., Lim, N. C. B., Ng, S. K., Wang, W. D., Wang, R. X., Wang, Q. J. & Liu, H. (2023). All-optical switching of structural color with a Fabry–Pérot cavity. Advanced Photonics Research, 4(11), 2300209-. https://dx.doi.org/10.1002/adpr.202300209 2699-9293 https://hdl.handle.net/10356/174945 10.1002/adpr.202300209 11 4 2300209 en MOE-T2EP50120-0006 MOE-T2EP50220-0005 MOE2018-T3-1-002 A20E5c0094 A18A7b0058 Advanced Photonics Research © 2023 The Authors. Advanced Photonics Research published by Wiley-VCH GmbH. This is an open access article under the terms of the CreativeCommons Attribution License, which permits use, distribution andreproduction in any medium, provided the original work is properly cited. application/pdf |
| spellingShingle | Engineering All-optical switching Antimony trisulfide Abdelraouf, Omar A. M. Wang, Xincai Goh, Ken Choon Hwa Lim, Nelson Chee Beng Ng, Siu Kit Wang, Wei De Wang, Renshaw Xiao Wang, Qi Jie Liu, Hong All-optical switching of structural color with a Fabry–Pérot cavity |
| title | All-optical switching of structural color with a Fabry–Pérot cavity |
| title_full | All-optical switching of structural color with a Fabry–Pérot cavity |
| title_fullStr | All-optical switching of structural color with a Fabry–Pérot cavity |
| title_full_unstemmed | All-optical switching of structural color with a Fabry–Pérot cavity |
| title_short | All-optical switching of structural color with a Fabry–Pérot cavity |
| title_sort | all optical switching of structural color with a fabry perot cavity |
| topic | Engineering All-optical switching Antimony trisulfide |
| url | https://hdl.handle.net/10356/174945 |
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