Optical phonon lasing in semiconductor double quantum dots

Rin Okuyama, Mikio Eto, Tobias Brandes

研究成果: Article

10 引用 (Scopus)

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We propose optical phonon lasing for a double quantum dot (DQD) fabricated in a semiconductor substrate. We show that the DQD is weakly coupled to only two LO phonon modes that act as a natural cavity. The lasing occurs for pumping the DQD via electronic tunneling at rates much higher than the phonon decay rate, whereas an antibunching of phonon emission is observed in the opposite regime of slow tunneling. Both effects disappear with an effective thermalization induced by the Franck-Condon effect in a DQD fabricated in a carbon nanotube with a strong electron-phonon coupling.

元の言語English
記事番号013704
ジャーナルJournal of the Physical Society of Japan
82
発行部数1
DOI
出版物ステータスPublished - 2013 1 1

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

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