Share Email Print
cover

Proceedings Paper

Spin-diffracted four-wave mixing measurements of exciton spin relaxation and population transfer to dark states
Author(s): Satoru Adachi; Suguru Maki; Osamu Ikeuchi; Hirotaka Sasakura; Shunichi Muto
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

We have observed the exciton spin relaxation processes in GaAs quantum wells at low temperatures by three-pulse spin-diffracted four-wave mixing measurements. After investigating the merits and demerits of this new method as compared with the pump-probe technique, we discuss the population transfer to the dark states through the measurements of the excitation-power dependence of exciton spin relaxation. Spin-diffracted four-wave mixing method is a powerful tool to investigate exciton spin dynamical processes where the pump-probe and time-resolved photoluminescence measurements have been used so far, since the method can be used in reflection geometry and be applicable to thin films and quantum dots.

Paper Details

Date Published: 30 May 2003
PDF: 8 pages
Proc. SPIE 4992, Ultrafast Phenomena in Semiconductors VII, (30 May 2003); doi: 10.1117/12.475704
Show Author Affiliations
Satoru Adachi, Hokkaido Univ. (Japan)
CREST, Japan Science and Technology Corp. (Japan)
Suguru Maki, Hokkaido Univ. (Japan)
CREST, Japan Science and Technology Corp. (Japan)
Osamu Ikeuchi, Hokkaido Univ. (Japan)
CREST, Japan Science and Technology Corp. (Japan)
Hirotaka Sasakura, Hokkaido Univ. (Japan)
CREST, Japan Science and Technology Corp. (Japan)
Shunichi Muto, Hokkaido Univ. (Japan)
CREST, Japan Science and Technology Corp. (Japan)


Published in SPIE Proceedings Vol. 4992:
Ultrafast Phenomena in Semiconductors VII
Kong-Thon F. Tsen; Jin-Joo Song; Hongxing Jiang, Editor(s)

© SPIE. Terms of Use
Back to Top