Optical characterization of ZnO microsphere produced by laser ablation in air

Daisuke Nakamura, Norihiro Tetsuyama, Tetsuya Shimogaki, Yuta Sato, Yasuaki Mizokami, Mitsuhiro Higashihata, Tatsuo Okada

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

We have succeeded in growing the ZnO microspheres by a simple laser ablation in the air, and we have obtained UV whispering-gallery-mode (WGM) lasing from the sphere under pulsed laser excitation. In this study, we observed resonances of WGM in visible region under cw laser pumping. In addition, possible refractive index of the ZnO microsphere was estimated from the WGM peaks. Furthermore, we obtained room-temperature electroluminescence from the ZnO microsphere/p-GaN heterojunction under forward bias.

Original languageEnglish
Pages (from-to)162-165
Number of pages4
JournalJournal of Laser Micro Nanoengineering
Volume10
Issue number2
DOIs
Publication statusPublished - Jan 1 2015

Fingerprint

Whispering gallery modes
whispering gallery modes
Laser ablation
Microspheres
laser ablation
air
Air
Pumping (laser)
laser pumping
Laser excitation
Electroluminescence
Pulsed lasers
electroluminescence
Heterojunctions
lasing
heterojunctions
pulsed lasers
Refractive index
refractivity
Lasers

All Science Journal Classification (ASJC) codes

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

Cite this

Nakamura, D., Tetsuyama, N., Shimogaki, T., Sato, Y., Mizokami, Y., Higashihata, M., & Okada, T. (2015). Optical characterization of ZnO microsphere produced by laser ablation in air. Journal of Laser Micro Nanoengineering, 10(2), 162-165. https://doi.org/10.2961/jlmn.2015.02.0010

Optical characterization of ZnO microsphere produced by laser ablation in air. / Nakamura, Daisuke; Tetsuyama, Norihiro; Shimogaki, Tetsuya; Sato, Yuta; Mizokami, Yasuaki; Higashihata, Mitsuhiro; Okada, Tatsuo.

In: Journal of Laser Micro Nanoengineering, Vol. 10, No. 2, 01.01.2015, p. 162-165.

Research output: Contribution to journalArticle

Nakamura, D, Tetsuyama, N, Shimogaki, T, Sato, Y, Mizokami, Y, Higashihata, M & Okada, T 2015, 'Optical characterization of ZnO microsphere produced by laser ablation in air', Journal of Laser Micro Nanoengineering, vol. 10, no. 2, pp. 162-165. https://doi.org/10.2961/jlmn.2015.02.0010
Nakamura, Daisuke ; Tetsuyama, Norihiro ; Shimogaki, Tetsuya ; Sato, Yuta ; Mizokami, Yasuaki ; Higashihata, Mitsuhiro ; Okada, Tatsuo. / Optical characterization of ZnO microsphere produced by laser ablation in air. In: Journal of Laser Micro Nanoengineering. 2015 ; Vol. 10, No. 2. pp. 162-165.
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