Synthesis of various sized ZnO microspheres by laser ablation and their lasing characteristics

Daisuke Nakamura, Tetsuya Simogaki, Kota Okazaki, Mitsuhiro Higashihata, Hiroshi Ikenoue, Tatsuo Okada

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

We have succeeded in synthesizing ZnO nano/microspheres by a simple laser ablation method in the air and demonstrated whispering-gallery-mode (WGM) lasing from the ZnO sphere excited by a pulsed-ultraviolet laser beam. The spheres with diameters of up to 10μm were simply prepared by laser ablation of a ZnO sintered target by a Q-switched Nd:YAG laser in the air. In this study, we succeeded synthesizing large microspheres with diameters of larger than 20μm by the Nd:YAG laser without Q-switching. The mode spacing of the large sphere was in good agreement with the WGM theory.

Original languageEnglish
Pages (from-to)296-299
Number of pages4
JournalJournal of Laser Micro Nanoengineering
Volume8
Issue number3
DOIs
Publication statusPublished - Dec 2013

All Science Journal Classification (ASJC) codes

  • Instrumentation
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

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