Generation of highly circularly polarized light from uniform InAs/GaAs quantum dots

K. Kusunoki, N. Tsukiji, T. Umi, A. Tackeuchi, K. Yamaguchi

Research output: Contribution to journalConference article

3 Citations (Scopus)

Abstract

Highly circularly polarized light is generated from highly uniform InAs/GaAs quantum dots. These quantum dots allowed us to observe the spin dynamics at each energy state selectively without disturbing the inhomogeneous broadening. Time-resolved spin-dependent photoluminescence measurements show that the spin polarization at the second excited state reaches a maximum of 45% at 10 K, and that the spin polarization is greater at higher-energy states. This large spin polarization is explained by the spin Pauli blocking effect.

Original languageEnglish
Pages (from-to)378-381
Number of pages4
JournalPhysica Status Solidi (C) Current Topics in Solid State Physics
Volume5
Issue number1
DOIs
Publication statusPublished - 2008 Jun 30
Event15th International Conference on Nonequilibrium Carrier Dynamics in Semiconductors, HCIS15 - Tokyo, Japan
Duration: 2007 Jul 232007 Jul 27

ASJC Scopus subject areas

  • Condensed Matter Physics

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