Optomechanical photoabsorption spectroscopy of exciton states in GaAs

Takayuki Watanabe, Hajime Okamoto, Koji Onomitsu, Hideki Gotoh, Tetsuomi Sogawa, Hiroshi Yamaguchi

研究成果: Article査読

7 被引用数 (Scopus)

抄録

We demonstrate a scheme for the photoabsorption spectroscopy of semiconductors via mechanical vibration characteristics. The thermal vibration of an AlGaAs/GaAs heterostructure-based cantilever sensitively reflects the photoabsorption properties of GaAs because of the optically induced piezoelectric effect. The Q factor and the peak amplitude of mechanical vibration are strongly enhanced near the exciton-related absorption peaks of GaAs at 10 K, showing good agreement with reported photoluminescence spectra.

本文言語English
論文番号082107
ジャーナルApplied Physics Letters
101
8
DOI
出版ステータスPublished - 2012 8 20

ASJC Scopus subject areas

  • 物理学および天文学(その他)

フィンガープリント

「Optomechanical photoabsorption spectroscopy of exciton states in GaAs」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル