Annular-shaped emission from gallium nitride nanotube lasers

Changyi Li; Sheng Liu; Antonio Hurtado; Jeremy B. Wright; Huiwen Xu; Ting Shan Luk; Jeffrey J. Figiel; Igal Brener; Steven R. J. Brueck; George T. Wang

doi:10.1021/acsphotonics.5b00039

Annular-shaped emission from gallium nitride nanotube lasers

Changyi Li, Sheng Liu, Antonio Hurtado, Jeremy B. Wright, Huiwen Xu, Ting Shan Luk, Jeffrey J. Figiel, Igal Brener, Steven R. J. Brueck, George T. Wang

Institute Of Photonics

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Abstract

Annular-shaped lasing emission is demonstrated from gallium nitride nanotubes fabricated using a two-step top-down technique. By optically pumping, we observe a clear threshold of 1055 kW/cm2, a narrow spectral linewidth of 0.19 nm, and guided emission from the nanotubes. Lasing is also demonstrated in a liquid environment, with an approximate doubling in threshold observed. The nanotube lasers could be of interest for optical nanofluidic applications or applications benefiting from a hollow beam shape. More generally, the results indicate that cross-sectional shape control can be employed to manipulate the properties of nanolasers.

Original language	English
Pages (from-to)	1025-1029
Number of pages	5
Journal	ACS Photonics
Volume	2
Issue number	8
Early online date	13 Jul 2015
DOIs	https://doi.org/10.1021/acsphotonics.5b00039
Publication status	Published - 1 Aug 2015

Keywords

gallium nitride nanotubes
spectral linewidth
optical nanofluid
laser
GaN
annular emission

Access to Document

10.1021/acsphotonics.5b00039

Li-etal-ACSP-2015-Annular-shaped-emission-from-gallium-nitrideAccepted author manuscript, 653 KB

http://pubs.acs.org/doi/abs/10.1021/acsphotonics.5b00039

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Antonio Hurtado
- antonio.hurtado@strath.ac.uk
- Institute Of Photonics - Senior Lecturer
Person: Academic

Cite this

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title = "Annular-shaped emission from gallium nitride nanotube lasers",

abstract = "Annular-shaped lasing emission is demonstrated from gallium nitride nanotubes fabricated using a two-step top-down technique. By optically pumping, we observe a clear threshold of 1055 kW/cm2, a narrow spectral linewidth of 0.19 nm, and guided emission from the nanotubes. Lasing is also demonstrated in a liquid environment, with an approximate doubling in threshold observed. The nanotube lasers could be of interest for optical nanofluidic applications or applications benefiting from a hollow beam shape. More generally, the results indicate that cross-sectional shape control can be employed to manipulate the properties of nanolasers.",

keywords = "gallium nitride nanotubes, spectral linewidth, optical nanofluid, laser, GaN, annular emission",

author = "Changyi Li and Sheng Liu and Antonio Hurtado and Wright, {Jeremy B.} and Huiwen Xu and Luk, {Ting Shan} and Figiel, {Jeffrey J.} and Igal Brener and Brueck, {Steven R. J.} and Wang, {George T.}",

note = "This document is the unedited author's version of a Submitted Work that was subsequently accepted for publication in ACS Photonics, copyright {\textcopyright} American Chemical Society after peer review. To access the final edited and published work, see 10.1021/acsphotonics.5b00039 ",

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T1 - Annular-shaped emission from gallium nitride nanotube lasers

AU - Li, Changyi

AU - Liu, Sheng

AU - Hurtado, Antonio

AU - Wright, Jeremy B.

AU - Xu, Huiwen

AU - Luk, Ting Shan

AU - Figiel, Jeffrey J.

AU - Brener, Igal

AU - Brueck, Steven R. J.

AU - Wang, George T.

N1 - This document is the unedited author's version of a Submitted Work that was subsequently accepted for publication in ACS Photonics, copyright © American Chemical Society after peer review. To access the final edited and published work, see 10.1021/acsphotonics.5b00039

PY - 2015/8/1

Y1 - 2015/8/1

N2 - Annular-shaped lasing emission is demonstrated from gallium nitride nanotubes fabricated using a two-step top-down technique. By optically pumping, we observe a clear threshold of 1055 kW/cm2, a narrow spectral linewidth of 0.19 nm, and guided emission from the nanotubes. Lasing is also demonstrated in a liquid environment, with an approximate doubling in threshold observed. The nanotube lasers could be of interest for optical nanofluidic applications or applications benefiting from a hollow beam shape. More generally, the results indicate that cross-sectional shape control can be employed to manipulate the properties of nanolasers.

AB - Annular-shaped lasing emission is demonstrated from gallium nitride nanotubes fabricated using a two-step top-down technique. By optically pumping, we observe a clear threshold of 1055 kW/cm2, a narrow spectral linewidth of 0.19 nm, and guided emission from the nanotubes. Lasing is also demonstrated in a liquid environment, with an approximate doubling in threshold observed. The nanotube lasers could be of interest for optical nanofluidic applications or applications benefiting from a hollow beam shape. More generally, the results indicate that cross-sectional shape control can be employed to manipulate the properties of nanolasers.

KW - gallium nitride nanotubes

KW - spectral linewidth

KW - optical nanofluid

KW - laser

KW - GaN

KW - annular emission

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DO - 10.1021/acsphotonics.5b00039

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SN - 2330-4022

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