Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Single-mode whispering gallery lasing from metal-clad GaN nanopillars

Not Accessible

Your library or personal account may give you access

Abstract

An ordered hexagonal closed-packed nanopillar array is fabricated on GaN. A metal coating is then applied to encapsulate the pillars for promoting optical confinement within the cylindrical cavity. Room-temperature lasing at 373 nm is observed under pulsed excitation, at a lasing threshold of 0.42MW/cm2. With pillar diameters of around 980 nm, the number of modes overlapping the emission spectrum is reduced, giving rise to single-mode whispering gallery stimulated emission. Finite-difference time-domain simulations are carried out for the prediction of resonant frequencies and electric field patterns corresponding to the resonant modes.

©2012 Optical Society of America

Full Article  |  PDF Article
More Like This
Single-mode ultraviolet whispering gallery mode lasing from a floating GaN microdisk

Gangyi Zhu, Jiaping Li, Jitao Li, Jiyuan Guo, Jun Dai, Chunxiang Xu, and Yongjin Wang
Opt. Lett. 43(4) 647-650 (2018)

Whispering-gallery mode lasing from optically free-standing InGaN microdisks

Xuhui Zhang, Yuk Fai Cheung, Yiyun Zhang, and H. W. Choi
Opt. Lett. 39(19) 5614-5617 (2014)

Whispering gallery mode lasing from InGaN/GaN quantum well microtube

Yufeng Li, Lungang Feng, Xilin Su, Qiang Li, Feng Yun, Ge Yuan, and Jung Han
Opt. Express 25(15) 18072-18080 (2017)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (4)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved