Miniaturized GaAs Nanowire Laser with a Metal Grating Reflector
This work proposed a miniaturized nanowire laser with high end-facet reflection. The high end-facet reflection was realized by integrating an Ag grating between the nanowire and the substrate. Its propagation and reflection properties were calculated using the finite elements method. The simulation...
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doaj-9dcfe477243d450b94c9c7d817b9577f2020-11-25T02:28:44ZengMDPI AGNanomaterials2079-49912020-04-011068068010.3390/nano10040680Miniaturized GaAs Nanowire Laser with a Metal Grating ReflectorWei Wei0Xin Yan1Xia Zhang2School of Mechanical and Electric Engineering, Guangzhou University, Guangzhou 510006, ChinaState Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, ChinaState Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, ChinaThis work proposed a miniaturized nanowire laser with high end-facet reflection. The high end-facet reflection was realized by integrating an Ag grating between the nanowire and the substrate. Its propagation and reflection properties were calculated using the finite elements method. The simulation results show that the reflectivity can be as high as 77.6% for a nanowire diameter of 200 nm and a period of 20, which is nearly three times larger than that of the nanowire without a metal grating reflector. For an equal length of nanowire with/without the metal grating reflector, the corresponding threshold gain is approximately a quarter of that of the nanowire without the metal grating reflector. Owing to the high reflection, the length of the nanowire can be reduced to 0.9 μm for the period of 5, resulting in a genuine nanolaser, composed of nanowire, with three dimensions smaller than 1 μm (the diameter is 200 nm). The proposed nanowire laser with a lowered threshold and reduced dimensions would be of great significance in on-chip information systems and networks.https://www.mdpi.com/2079-4991/10/4/680nanowirenanolasermetal grating |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Wei Wei Xin Yan Xia Zhang |
spellingShingle |
Wei Wei Xin Yan Xia Zhang Miniaturized GaAs Nanowire Laser with a Metal Grating Reflector Nanomaterials nanowire nanolaser metal grating |
author_facet |
Wei Wei Xin Yan Xia Zhang |
author_sort |
Wei Wei |
title |
Miniaturized GaAs Nanowire Laser with a Metal Grating Reflector |
title_short |
Miniaturized GaAs Nanowire Laser with a Metal Grating Reflector |
title_full |
Miniaturized GaAs Nanowire Laser with a Metal Grating Reflector |
title_fullStr |
Miniaturized GaAs Nanowire Laser with a Metal Grating Reflector |
title_full_unstemmed |
Miniaturized GaAs Nanowire Laser with a Metal Grating Reflector |
title_sort |
miniaturized gaas nanowire laser with a metal grating reflector |
publisher |
MDPI AG |
series |
Nanomaterials |
issn |
2079-4991 |
publishDate |
2020-04-01 |
description |
This work proposed a miniaturized nanowire laser with high end-facet reflection. The high end-facet reflection was realized by integrating an Ag grating between the nanowire and the substrate. Its propagation and reflection properties were calculated using the finite elements method. The simulation results show that the reflectivity can be as high as 77.6% for a nanowire diameter of 200 nm and a period of 20, which is nearly three times larger than that of the nanowire without a metal grating reflector. For an equal length of nanowire with/without the metal grating reflector, the corresponding threshold gain is approximately a quarter of that of the nanowire without the metal grating reflector. Owing to the high reflection, the length of the nanowire can be reduced to 0.9 μm for the period of 5, resulting in a genuine nanolaser, composed of nanowire, with three dimensions smaller than 1 μm (the diameter is 200 nm). The proposed nanowire laser with a lowered threshold and reduced dimensions would be of great significance in on-chip information systems and networks. |
topic |
nanowire nanolaser metal grating |
url |
https://www.mdpi.com/2079-4991/10/4/680 |
work_keys_str_mv |
AT weiwei miniaturizedgaasnanowirelaserwithametalgratingreflector AT xinyan miniaturizedgaasnanowirelaserwithametalgratingreflector AT xiazhang miniaturizedgaasnanowirelaserwithametalgratingreflector |
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