Broadband Mirrors in the Near-Infrared Based on Subwavelength Gratings in SOI
We describe the design, fabrication, and characterization of high-reflectivity broadband mirrors operating in the near-infrared (700-1000 nm) wavelength range. The mirrors consist of 1-D and 2-D subwavelength resonant gratings (SWGs) fabricated on a silicon-on-insulator (SOI) wafer. A very good agre...
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doaj-49e29ade1e95415aa5f7884da1420b8e2021-03-29T17:11:55ZengIEEEIEEE Photonics Journal1943-06552010-01-012569670210.1109/JPHOT.2010.20590035512548Broadband Mirrors in the Near-Infrared Based on Subwavelength Gratings in SOIArmando Ricciardi0Stefania Campopiano1Andrea Cusano2Thomas F. Krauss3Liam O'Faolain4<formula formulatype="inline"><tex Notation="TeX">$^{1}$</tex></formula>School of Physics and Astronomy, <formula formulatype="inline"><tex Notation="TeX">$^{2}$</tex></formula>Department for Technologies, University of St. Andrews, University of Naples “Parthenope”, St Andrews, Naples, U.K.ItalyDept. for Technol., Univ. of Naples Parthenope, Naples, Italy<formula formulatype="inline"><tex Notation="TeX">$^{3}$</tex></formula>Optoelectronic Division, Department of Engineering, University of Sannio, Benevento, ItalySch. of Phys. & Astron., Univ. of St. Andrews, St. Andrews, UKSch. of Phys. & Astron., Univ. of St. Andrews, St. Andrews, UKWe describe the design, fabrication, and characterization of high-reflectivity broadband mirrors operating in the near-infrared (700-1000 nm) wavelength range. The mirrors consist of 1-D and 2-D subwavelength resonant gratings (SWGs) fabricated on a silicon-on-insulator (SOI) wafer. A very good agreement between numerical and experimental results is obtained. The mirror response can be tailored by adjusting the geometrical parameters of the gratings, with the grating period as the main parameter. The optimized mirrors reflect strongly (> 95%) over a fractional optical bandwidth Δλ/λ of about 12% and 7.5% for 1-D and 2-D gratings, respectively. The important and somewhat surprising feature of these gratings is that high reflectivities have been achieved, despite the fact that silicon exhibits significant absorption in this wavelength range.https://ieeexplore.ieee.org/document/5512548/Mirrorsgratingsphotonic crystals |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Armando Ricciardi Stefania Campopiano Andrea Cusano Thomas F. Krauss Liam O'Faolain |
spellingShingle |
Armando Ricciardi Stefania Campopiano Andrea Cusano Thomas F. Krauss Liam O'Faolain Broadband Mirrors in the Near-Infrared Based on Subwavelength Gratings in SOI IEEE Photonics Journal Mirrors gratings photonic crystals |
author_facet |
Armando Ricciardi Stefania Campopiano Andrea Cusano Thomas F. Krauss Liam O'Faolain |
author_sort |
Armando Ricciardi |
title |
Broadband Mirrors in the Near-Infrared Based on Subwavelength Gratings in SOI |
title_short |
Broadband Mirrors in the Near-Infrared Based on Subwavelength Gratings in SOI |
title_full |
Broadband Mirrors in the Near-Infrared Based on Subwavelength Gratings in SOI |
title_fullStr |
Broadband Mirrors in the Near-Infrared Based on Subwavelength Gratings in SOI |
title_full_unstemmed |
Broadband Mirrors in the Near-Infrared Based on Subwavelength Gratings in SOI |
title_sort |
broadband mirrors in the near-infrared based on subwavelength gratings in soi |
publisher |
IEEE |
series |
IEEE Photonics Journal |
issn |
1943-0655 |
publishDate |
2010-01-01 |
description |
We describe the design, fabrication, and characterization of high-reflectivity broadband mirrors operating in the near-infrared (700-1000 nm) wavelength range. The mirrors consist of 1-D and 2-D subwavelength resonant gratings (SWGs) fabricated on a silicon-on-insulator (SOI) wafer. A very good agreement between numerical and experimental results is obtained. The mirror response can be tailored by adjusting the geometrical parameters of the gratings, with the grating period as the main parameter. The optimized mirrors reflect strongly (> 95%) over a fractional optical bandwidth Δλ/λ of about 12% and 7.5% for 1-D and 2-D gratings, respectively. The important and somewhat surprising feature of these gratings is that high reflectivities have been achieved, despite the fact that silicon exhibits significant absorption in this wavelength range. |
topic |
Mirrors gratings photonic crystals |
url |
https://ieeexplore.ieee.org/document/5512548/ |
work_keys_str_mv |
AT armandoricciardi broadbandmirrorsinthenearinfraredbasedonsubwavelengthgratingsinsoi AT stefaniacampopiano broadbandmirrorsinthenearinfraredbasedonsubwavelengthgratingsinsoi AT andreacusano broadbandmirrorsinthenearinfraredbasedonsubwavelengthgratingsinsoi AT thomasfkrauss broadbandmirrorsinthenearinfraredbasedonsubwavelengthgratingsinsoi AT liamofaolain broadbandmirrorsinthenearinfraredbasedonsubwavelengthgratingsinsoi |
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1724198174946492416 |