Metasurface-tunable lasing polarizations in a microcavity

Manipulating polarization states of microlasers is essentially important in many emerging optical and biological applications. Strategies have been focused on using external optical elements or surface nanostructures to control the polarization state of laser emission. Here we introduce a strategy f...

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Main Authors: Yuan, Zhiyi, Huang, Shih-Hsiu, Qiao, Zhen, Wu, Pin Chieh, Chen, Yu-Cheng
Other Authors: School of Electrical and Electronic Engineering
Format: Article
Language:English
Published: 2023
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Online Access:https://hdl.handle.net/10356/171500
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1715002023-10-27T15:40:50Z Metasurface-tunable lasing polarizations in a microcavity Yuan, Zhiyi Huang, Shih-Hsiu Qiao, Zhen Wu, Pin Chieh Chen, Yu-Cheng School of Electrical and Electronic Engineering Engineering::Electrical and electronic engineering Light-matter Interactions Laser Manipulating polarization states of microlasers is essentially important in many emerging optical and biological applications. Strategies have been focused on using external optical elements or surface nanostructures to control the polarization state of laser emission. Here we introduce a strategy for manipulation of laser polarization based on metasurfaces through round trips of photons confined inside an active optical cavity. The roles of intracavity metasurfaces and light–meta-atom interactions were investigated under a stimulated emission process in a microcavity. Taking advantage of strong optical feedback produced by the Fabry–Pérot optofluidic microcavity, light–meta-atom interactions are enlarged, resulting in polarized lasing emission with high purity and controllability. Depending on the metasurface structural orientation, the polarization state of lasing emission can be actively modulated as linearly polarized or elliptically polarized with different degrees of circular polarization at a source within the microcavity. This study provides insight into fundamental laser physics, opening possibilities by bridging metasurfaces into microlasers. Agency for Science, Technology and Research (A*STAR) Published version This work was funded by Agency for Science, Technology and Research (M21K2c0106); National Science and Technology Council (NSTC), Taiwan (111-2112-M-006-022-MY3, 111-2124-M-006-003, 110-2731-M-0006-001, EM025200); Ministry of Education. 2023-10-27T04:28:30Z 2023-10-27T04:28:30Z 2023 Journal Article Yuan, Z., Huang, S., Qiao, Z., Wu, P. C. & Chen, Y. (2023). Metasurface-tunable lasing polarizations in a microcavity. Optica, 10(2), 269-278. https://dx.doi.org/10.1364/OPTICA.478616 2334-2536 https://hdl.handle.net/10356/171500 10.1364/OPTICA.478616 2-s2.0-85152395632 2 10 269 278 en M21K2c0106 Optica © 2023 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering::Electrical and electronic engineering
Light-matter Interactions
Laser
spellingShingle Engineering::Electrical and electronic engineering
Light-matter Interactions
Laser
Yuan, Zhiyi
Huang, Shih-Hsiu
Qiao, Zhen
Wu, Pin Chieh
Chen, Yu-Cheng
Metasurface-tunable lasing polarizations in a microcavity
description Manipulating polarization states of microlasers is essentially important in many emerging optical and biological applications. Strategies have been focused on using external optical elements or surface nanostructures to control the polarization state of laser emission. Here we introduce a strategy for manipulation of laser polarization based on metasurfaces through round trips of photons confined inside an active optical cavity. The roles of intracavity metasurfaces and light–meta-atom interactions were investigated under a stimulated emission process in a microcavity. Taking advantage of strong optical feedback produced by the Fabry–Pérot optofluidic microcavity, light–meta-atom interactions are enlarged, resulting in polarized lasing emission with high purity and controllability. Depending on the metasurface structural orientation, the polarization state of lasing emission can be actively modulated as linearly polarized or elliptically polarized with different degrees of circular polarization at a source within the microcavity. This study provides insight into fundamental laser physics, opening possibilities by bridging metasurfaces into microlasers.
author2 School of Electrical and Electronic Engineering
author_facet School of Electrical and Electronic Engineering
Yuan, Zhiyi
Huang, Shih-Hsiu
Qiao, Zhen
Wu, Pin Chieh
Chen, Yu-Cheng
format Article
author Yuan, Zhiyi
Huang, Shih-Hsiu
Qiao, Zhen
Wu, Pin Chieh
Chen, Yu-Cheng
author_sort Yuan, Zhiyi
title Metasurface-tunable lasing polarizations in a microcavity
title_short Metasurface-tunable lasing polarizations in a microcavity
title_full Metasurface-tunable lasing polarizations in a microcavity
title_fullStr Metasurface-tunable lasing polarizations in a microcavity
title_full_unstemmed Metasurface-tunable lasing polarizations in a microcavity
title_sort metasurface-tunable lasing polarizations in a microcavity
publishDate 2023
url https://hdl.handle.net/10356/171500
_version_ 1781793884180840448