Controlling deformation in a high quality factor silica microsphere toward single directional emission

High-Q deformed silica microsphere cavities are fabricated by short CO(2) laser pulses, where the deformation is well controlled by adjusting the intensity and number of pulses. Using this method, directional emission from whispering-gallery mode (WGM) with a high quality factor of 10(7) in these mi...

Full description

Saved in:
Bibliographic Details
Published in:Applied optics (2004) 2013-01, Vol.52 (2), p.298-301
Main Authors: Cui, Jin-Ming, Dong, Chun-Hua, Zou, Chang-Ling, Sun, Fang-Wen, Xiao, Yun-Feng, Han, Zheng-Fu, Guo, Guang-Can
Format: Article
Language:English
Subjects:
Carbon dioxide
Deformation
Emission
Holes
Microcavities
Microspheres
Quality factor
Silicon dioxide
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:High-Q deformed silica microsphere cavities are fabricated by short CO(2) laser pulses, where the deformation is well controlled by adjusting the intensity and number of pulses. Using this method, directional emission from whispering-gallery mode (WGM) with a high quality factor of 10(7) in these microspheres is achieved, and a transition from two-directional to single-directional emission is observed. Such concentrated directional emission and high-Q of WGMs show high potential for future studies of the chaotic ray dynamics in deformed microcavity and cavity quantum electrodynamics and optomechanics.
ISSN:1559-128X
2155-3165
DOI:10.1364/AO.52.000298