Observation of Coherent Phonons in Wide-gap Semiconductors

• KUNUGITA Hideyuki

  Sophia University

Bibliographic Information

Other Title

• ワイドギャップ半導体におけるコヒーレントフォノンの観測

Abstract

We focus on our recent study of coherent phonons in wide-gap semiconductors. The principle and advantage of spectrally filtered EO sampling pump-probe transmittance detection of coherent phonons in transparent media are explained. Even though using noncollinear optical parametric amplifier with low repetition rate, we could clearly observe the coherent phonon signal. We studied resonant generation of coherent phonon in ZnTe by a nondegenerate pump-probe measurement. The pump energy dependence of the initial amplitude can be explained by the intense absorption of the pump pulse.

Journal

• Hyomen Kagaku

  Hyomen Kagaku 32 (12), 761-766, 2011

  The Surface Science Society of Japan

Keywords

• coherent phonon
• wide-gap semiconductors
• noncollinear optical parametric amplifier
• resonant Raman effect

Details

• CRID: 1390001206458025728
• NII Article ID: 130004486622
• DOI: 10.1380/jsssj.32.761
• ISSN: 18814743
• ISSN: 03885321
• Web Site: http://www.jstage.jst.go.jp/article/jsssj/32/12/32_12_761/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed