Lasing characteristics from optically-pumped ZnO nanocrystals for ultraviolet laser diode

K. Okazaki, Daisuke Nakamura, M. Higashihata, T. Okada

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The lasing characteristics of a single ZnO nanowire and nanosheet were investigated for an application to ultraviolet laser diode. ZnO nanowires and nanosheets were synthesized on a silicon substrate by a CVD method, and then those ZnO nanosheets were examined by a photoluminescence method with a third-harmonic Nd:YAG laser (355 nm, 5 ns). The observed emission spectra from both a single ZnO nanowire and nanosheet showed the obvious lasing characteristics having mode structure and a threshold for lasing which were measured to be 80 kW/cm2, and 47 kW/cm2. Those threshold would be low enough for lasing by an electrical pumping for ultraviolet laser diode.

Original languageEnglish
Title of host publicationConference on Lasers and Electro-Optics/Pacific Rim, CLEOPR 2011
Pages1012-1014
Number of pages3
Publication statusPublished - 2011
EventConference on Lasers and Electro-Optics/Pacific Rim, CLEOPR 2011 - Sydney, Australia
Duration: Aug 28 2011Sep 1 2011

Other

OtherConference on Lasers and Electro-Optics/Pacific Rim, CLEOPR 2011
CountryAustralia
CitySydney
Period8/28/119/1/11

All Science Journal Classification (ASJC) codes

  • Instrumentation
  • Atomic and Molecular Physics, and Optics

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    Okazaki, K., Nakamura, D., Higashihata, M., & Okada, T. (2011). Lasing characteristics from optically-pumped ZnO nanocrystals for ultraviolet laser diode. In Conference on Lasers and Electro-Optics/Pacific Rim, CLEOPR 2011 (pp. 1012-1014)