Hot-wire chemical vapor deposition low-loss hydrogenated amorphous silicon waveguides for silicon photonic devices

We demonstrate low-loss hydrogenated amorphous silicon (a-Si:H) waveguides by hot-wire chemical vapor deposition (HWCVD). The effect of hydrogenation in a-Si at different deposition temperatures has been investigated and analyzed by Raman spectroscopy. We obtained an optical quality a-Si:H waveguide...

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Main Authors: Oo, Swe Z., Tarazona, Antulio, Khokhar, Ali Z., Petra, Rafidah, Franz, Yohann, Mashanovich, Goran Z., Reed, Graham T., Peacock, Anna C., Chong, Harold M. H.
Other Authors: School of Electrical and Electronic Engineering
Format: Journal Article
Language:English
Published: 2021
Subjects:
Online Access:https://hdl.handle.net/10356/148729
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author Oo, Swe Z.
Tarazona, Antulio
Khokhar, Ali Z.
Petra, Rafidah
Franz, Yohann
Mashanovich, Goran Z.
Reed, Graham T.
Peacock, Anna C.
Chong, Harold M. H.
author2 School of Electrical and Electronic Engineering
author_facet School of Electrical and Electronic Engineering
Oo, Swe Z.
Tarazona, Antulio
Khokhar, Ali Z.
Petra, Rafidah
Franz, Yohann
Mashanovich, Goran Z.
Reed, Graham T.
Peacock, Anna C.
Chong, Harold M. H.
author_sort Oo, Swe Z.
collection NTU
description We demonstrate low-loss hydrogenated amorphous silicon (a-Si:H) waveguides by hot-wire chemical vapor deposition (HWCVD). The effect of hydrogenation in a-Si at different deposition temperatures has been investigated and analyzed by Raman spectroscopy. We obtained an optical quality a-Si:H waveguide deposited at 230°C that has a strong Raman peak shift at 480 cm , peak width (full width at half-maximum) of 68.9 cm , and bond angle deviation of 8.98°. Optical transmission measurement shows a low propagation loss of 0.8 dB/cm at the 1550 nm wavelength, which is the first, to our knowledge, report for a HWCVD a-Si:H waveguide.
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spelling ntu-10356/1487292021-05-05T07:41:33Z Hot-wire chemical vapor deposition low-loss hydrogenated amorphous silicon waveguides for silicon photonic devices Oo, Swe Z. Tarazona, Antulio Khokhar, Ali Z. Petra, Rafidah Franz, Yohann Mashanovich, Goran Z. Reed, Graham T. Peacock, Anna C. Chong, Harold M. H. School of Electrical and Electronic Engineering Engineering::Electrical and electronic engineering Microcrystalline Silicon Films We demonstrate low-loss hydrogenated amorphous silicon (a-Si:H) waveguides by hot-wire chemical vapor deposition (HWCVD). The effect of hydrogenation in a-Si at different deposition temperatures has been investigated and analyzed by Raman spectroscopy. We obtained an optical quality a-Si:H waveguide deposited at 230°C that has a strong Raman peak shift at 480 cm , peak width (full width at half-maximum) of 68.9 cm , and bond angle deviation of 8.98°. Optical transmission measurement shows a low propagation loss of 0.8 dB/cm at the 1550 nm wavelength, which is the first, to our knowledge, report for a HWCVD a-Si:H waveguide. Published version Engineering and Physical Sciences Research Council (EPSRC) (EP/L00044X/1, EP/N013247/1, EP/ L02112G/1). 2021-05-05T07:41:32Z 2021-05-05T07:41:32Z 2019 Journal Article Oo, S. Z., Tarazona, A., Khokhar, A. Z., Petra, R., Franz, Y., Mashanovich, G. Z., Reed, G. T., Peacock, A. C. & Chong, H. M. H. (2019). Hot-wire chemical vapor deposition low-loss hydrogenated amorphous silicon waveguides for silicon photonic devices. Photonics Research, 7(2), 193-200. https://dx.doi.org/10.1364/PRJ.7.000193 2327-9125 https://hdl.handle.net/10356/148729 10.1364/PRJ.7.000193 2-s2.0-85063939824 2 7 193 200 en Photonics Research © 2019 Chinese Laser Press. Published by Chinese Laser Press under the terms of the Creative Commons Attribution 4.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. application/pdf
spellingShingle Engineering::Electrical and electronic engineering
Microcrystalline Silicon
Films
Oo, Swe Z.
Tarazona, Antulio
Khokhar, Ali Z.
Petra, Rafidah
Franz, Yohann
Mashanovich, Goran Z.
Reed, Graham T.
Peacock, Anna C.
Chong, Harold M. H.
Hot-wire chemical vapor deposition low-loss hydrogenated amorphous silicon waveguides for silicon photonic devices
title Hot-wire chemical vapor deposition low-loss hydrogenated amorphous silicon waveguides for silicon photonic devices
title_full Hot-wire chemical vapor deposition low-loss hydrogenated amorphous silicon waveguides for silicon photonic devices
title_fullStr Hot-wire chemical vapor deposition low-loss hydrogenated amorphous silicon waveguides for silicon photonic devices
title_full_unstemmed Hot-wire chemical vapor deposition low-loss hydrogenated amorphous silicon waveguides for silicon photonic devices
title_short Hot-wire chemical vapor deposition low-loss hydrogenated amorphous silicon waveguides for silicon photonic devices
title_sort hot wire chemical vapor deposition low loss hydrogenated amorphous silicon waveguides for silicon photonic devices
topic Engineering::Electrical and electronic engineering
Microcrystalline Silicon
Films
url https://hdl.handle.net/10356/148729
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