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Broadband and Ultra-Low Threshold Optical Bistability in Guided-Mode Resonance Grating Nanostructures of Quasi-Bound States in the Continuum

We model optical bistability in all-dielectric guide-mode resonance grating (GMR) nanostructures working at quasi-bound states in the continuum (BICs). The complementary metal-oxide-semiconductor (CMOS) compatible material silicon nitride (SiN) is used for the design of nanostructures and simulation...

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Autores principales: Li, Xin, Zhang, Zhongshuai, Huo, Yanyan, Zhao, Lina, Yue, Qingyang, Jiang, Shouzhen, Liang, Huawei, Gao, Yuanmei, Ning, Tingyin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8618430/
https://www.ncbi.nlm.nih.gov/pubmed/34835608
http://dx.doi.org/10.3390/nano11112843
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author Li, Xin
Zhang, Zhongshuai
Huo, Yanyan
Zhao, Lina
Yue, Qingyang
Jiang, Shouzhen
Liang, Huawei
Gao, Yuanmei
Ning, Tingyin
author_facet Li, Xin
Zhang, Zhongshuai
Huo, Yanyan
Zhao, Lina
Yue, Qingyang
Jiang, Shouzhen
Liang, Huawei
Gao, Yuanmei
Ning, Tingyin
author_sort Li, Xin
collection PubMed
description We model optical bistability in all-dielectric guide-mode resonance grating (GMR) nanostructures working at quasi-bound states in the continuum (BICs). The complementary metal-oxide-semiconductor (CMOS) compatible material silicon nitride (SiN) is used for the design of nanostructures and simulations. The ultra-low threshold of input intensity in the feasible nanostructure for nanofabrication is obtained at the level of ~100 W/cm(2) driven by quasi-BICs. Additionally, the resonance wavelength in the GMR nanostructure can be widely tuned by incident angles with the slightly changed Q-factor that enables the optical bistable devices to work efficiently over a wide spectrum. The impact of the defects of grating that may be introduced in the fabrication process on the optical properties is discussed, and the tolerance of the defects to the optical performance of the device is confirmed. The results indicate that the GMR nanostructures of broadband and ultra-low threshold optical bistability driven by quasi-BICs are promising in the application of all-optical devices.
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spelling pubmed-86184302021-11-27 Broadband and Ultra-Low Threshold Optical Bistability in Guided-Mode Resonance Grating Nanostructures of Quasi-Bound States in the Continuum Li, Xin Zhang, Zhongshuai Huo, Yanyan Zhao, Lina Yue, Qingyang Jiang, Shouzhen Liang, Huawei Gao, Yuanmei Ning, Tingyin Nanomaterials (Basel) Article We model optical bistability in all-dielectric guide-mode resonance grating (GMR) nanostructures working at quasi-bound states in the continuum (BICs). The complementary metal-oxide-semiconductor (CMOS) compatible material silicon nitride (SiN) is used for the design of nanostructures and simulations. The ultra-low threshold of input intensity in the feasible nanostructure for nanofabrication is obtained at the level of ~100 W/cm(2) driven by quasi-BICs. Additionally, the resonance wavelength in the GMR nanostructure can be widely tuned by incident angles with the slightly changed Q-factor that enables the optical bistable devices to work efficiently over a wide spectrum. The impact of the defects of grating that may be introduced in the fabrication process on the optical properties is discussed, and the tolerance of the defects to the optical performance of the device is confirmed. The results indicate that the GMR nanostructures of broadband and ultra-low threshold optical bistability driven by quasi-BICs are promising in the application of all-optical devices. MDPI 2021-10-26 /pmc/articles/PMC8618430/ /pubmed/34835608 http://dx.doi.org/10.3390/nano11112843 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Li, Xin
Zhang, Zhongshuai
Huo, Yanyan
Zhao, Lina
Yue, Qingyang
Jiang, Shouzhen
Liang, Huawei
Gao, Yuanmei
Ning, Tingyin
Broadband and Ultra-Low Threshold Optical Bistability in Guided-Mode Resonance Grating Nanostructures of Quasi-Bound States in the Continuum
title Broadband and Ultra-Low Threshold Optical Bistability in Guided-Mode Resonance Grating Nanostructures of Quasi-Bound States in the Continuum
title_full Broadband and Ultra-Low Threshold Optical Bistability in Guided-Mode Resonance Grating Nanostructures of Quasi-Bound States in the Continuum
title_fullStr Broadband and Ultra-Low Threshold Optical Bistability in Guided-Mode Resonance Grating Nanostructures of Quasi-Bound States in the Continuum
title_full_unstemmed Broadband and Ultra-Low Threshold Optical Bistability in Guided-Mode Resonance Grating Nanostructures of Quasi-Bound States in the Continuum
title_short Broadband and Ultra-Low Threshold Optical Bistability in Guided-Mode Resonance Grating Nanostructures of Quasi-Bound States in the Continuum
title_sort broadband and ultra-low threshold optical bistability in guided-mode resonance grating nanostructures of quasi-bound states in the continuum
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8618430/
https://www.ncbi.nlm.nih.gov/pubmed/34835608
http://dx.doi.org/10.3390/nano11112843
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