Nearly total optical transmission of linearly polarized light through transparent electrode composed of GaSb monolithic high-contrast grating integrated with gold

Achieving high transmission of light through a highly conductive structure implemented on a semiconductor remains a challenge in optoelectronics as the transmission is inevitably deteriorated by absorption and Fresnel reflection. There have been numerous efforts to design structures with near-unity...

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Autores principales:	Tobing Landobasa Y. M., Wasiak Michał, Zhang Dao Hua, Fan Weijun, Czyszanowski Tomasz
Formato:	article
Lenguaje:	EN
Publicado:	De Gruyter 2021
Materias:	monolithic high contrast grating subwavelength grating transparent electrode Physics QC1-999
Acceso en línea:	https://doaj.org/article/b911f4585daa4568a8d42460e89d7d81
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spelling	oai:doaj.org-article:b911f4585daa4568a8d42460e89d7d812021-12-05T14:10:56ZNearly total optical transmission of linearly polarized light through transparent electrode composed of GaSb monolithic high-contrast grating integrated with gold2192-861410.1515/nanoph-2021-0286https://doaj.org/article/b911f4585daa4568a8d42460e89d7d812021-09-01T00:00:00Zhttps://doi.org/10.1515/nanoph-2021-0286https://doaj.org/toc/2192-8614Achieving high transmission of light through a highly conductive structure implemented on a semiconductor remains a challenge in optoelectronics as the transmission is inevitably deteriorated by absorption and Fresnel reflection. There have been numerous efforts to design structures with near-unity transmission, yet they are typically constrained by a trade-off between conductivity and optical transmission. To address this problem, we propose and demonstrate a transmission mechanism enabled by a monolithic GaSb subwavelength grating integrated with Au stripes (metalMHCG). Near-unity transmission of polarized light is achieved by inducing low-quality factor resonance in the air gaps between the semiconductor grating stripes, which eliminates light absorption and reflection by the metal. Our numerical simulation shows 97% transmission of transverse magnetic polarized light and sheet resistance of 2.2 ΩSq−1. The metalMHCG structure was realized via multiple nanopatterning and dry etching, with the largest transmission yet reported of ∼90% at a wavelength of 4.5 µm and above 75% transmission in the wavelength range from 4 to 10 µm and sheet resistance at the level of 26 ΩSq−1. High optical transmission is readily achievable using any high refractive index materials employed in optoelectronics. The design of the metalMHCG is applicable in a wide electromagnetic spectrum from near ultraviolet to infrared.Tobing Landobasa Y. M.Wasiak MichałZhang Dao HuaFan WeijunCzyszanowski TomaszDe Gruyterarticlemonolithic high contrast gratingsubwavelength gratingtransparent electrodePhysicsQC1-999ENNanophotonics, Vol 10, Iss 15, Pp 3823-3830 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	monolithic high contrast grating subwavelength grating transparent electrode Physics QC1-999
spellingShingle	monolithic high contrast grating subwavelength grating transparent electrode Physics QC1-999 Tobing Landobasa Y. M. Wasiak Michał Zhang Dao Hua Fan Weijun Czyszanowski Tomasz Nearly total optical transmission of linearly polarized light through transparent electrode composed of GaSb monolithic high-contrast grating integrated with gold
description	Achieving high transmission of light through a highly conductive structure implemented on a semiconductor remains a challenge in optoelectronics as the transmission is inevitably deteriorated by absorption and Fresnel reflection. There have been numerous efforts to design structures with near-unity transmission, yet they are typically constrained by a trade-off between conductivity and optical transmission. To address this problem, we propose and demonstrate a transmission mechanism enabled by a monolithic GaSb subwavelength grating integrated with Au stripes (metalMHCG). Near-unity transmission of polarized light is achieved by inducing low-quality factor resonance in the air gaps between the semiconductor grating stripes, which eliminates light absorption and reflection by the metal. Our numerical simulation shows 97% transmission of transverse magnetic polarized light and sheet resistance of 2.2 ΩSq−1. The metalMHCG structure was realized via multiple nanopatterning and dry etching, with the largest transmission yet reported of ∼90% at a wavelength of 4.5 µm and above 75% transmission in the wavelength range from 4 to 10 µm and sheet resistance at the level of 26 ΩSq−1. High optical transmission is readily achievable using any high refractive index materials employed in optoelectronics. The design of the metalMHCG is applicable in a wide electromagnetic spectrum from near ultraviolet to infrared.
format	article
author	Tobing Landobasa Y. M. Wasiak Michał Zhang Dao Hua Fan Weijun Czyszanowski Tomasz
author_facet	Tobing Landobasa Y. M. Wasiak Michał Zhang Dao Hua Fan Weijun Czyszanowski Tomasz
author_sort	Tobing Landobasa Y. M.
title	Nearly total optical transmission of linearly polarized light through transparent electrode composed of GaSb monolithic high-contrast grating integrated with gold
title_short	Nearly total optical transmission of linearly polarized light through transparent electrode composed of GaSb monolithic high-contrast grating integrated with gold
title_full	Nearly total optical transmission of linearly polarized light through transparent electrode composed of GaSb monolithic high-contrast grating integrated with gold
title_fullStr	Nearly total optical transmission of linearly polarized light through transparent electrode composed of GaSb monolithic high-contrast grating integrated with gold
title_full_unstemmed	Nearly total optical transmission of linearly polarized light through transparent electrode composed of GaSb monolithic high-contrast grating integrated with gold
title_sort	nearly total optical transmission of linearly polarized light through transparent electrode composed of gasb monolithic high-contrast grating integrated with gold
publisher	De Gruyter
publishDate	2021
url	https://doaj.org/article/b911f4585daa4568a8d42460e89d7d81
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Nearly total optical transmission of linearly polarized light through transparent electrode composed of GaSb monolithic high-contrast grating integrated with gold

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