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Fabrication and Lasing Properties of Single-Crystalline Semiconductor Microspheres with Anisotropic Crystal Structures

Published online by Cambridge University Press:  11 February 2015

Shinya Okamoto ,
Satoshi Ichikawa ,
Yosuke Minowa  and
Masaaki Ashida
Shinya Okamoto
Affiliation:
Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyamacho, Toyonaka, Osaka 560-8531, Japan
Satoshi Ichikawa
Affiliation:
Institute for NanoScience Design, Osaka University, 1-3 Machikaneyamacho, Toyonaka, Osaka 560-8531, Japan
Yosuke Minowa
Affiliation:
Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyamacho, Toyonaka, Osaka 560-8531, Japan
Masaaki Ashida
Affiliation:
Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyamacho, Toyonaka, Osaka 560-8531, Japan
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Abstract

We fabricated single-crystalline microspheres of wide-gap semiconductors with anisotropic crystal structures, such as ZnO and ZnSe, by laser ablation in superfluid helium and investigated their lasing properties. Whispering gallery mode lasing at their band edges in ultraviolet region was clearly observed under the optical excitation, reflecting their high sphericity and crystal quality.

Keywords

optical propertiesmicrostructurelaser ablation
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1736: Symposium T – Wide-Bandgap Materials for Solid-State Lighting and Power Electronics , 2014 , mrsf14-1736-t08-02
Copyright
Copyright © Materials Research Society 2015 

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References

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