Spin-diffracted four-wave mixing measurements of exciton spin relaxation and population transfer to dark states

Satoru Adachi; Suguru Maki; Osamu Ikeuchi; Hirotaka Sasakura; Shunichi Muto

doi:10.1117/12.475704

30 May 2003 Spin-diffracted four-wave mixing measurements of exciton spin relaxation and population transfer to dark states

Satoru Adachi, Suguru Maki, Osamu Ikeuchi, Hirotaka Sasakura, Shunichi Muto

Author Affiliations +

Proceedings Volume 4992, Ultrafast Phenomena in Semiconductors VII; (2003) https://doi.org/10.1117/12.475704
Event: Integrated Optoelectronics Devices, 2003, San Jose, CA, United States

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.

Citation Download Citation

Satoru Adachi, Suguru Maki, Osamu Ikeuchi, Hirotaka Sasakura, and Shunichi Muto "Spin-diffracted four-wave mixing measurements of exciton spin relaxation and population transfer to dark states", Proc. SPIE 4992, Ultrafast Phenomena in Semiconductors VII, (30 May 2003); https://doi.org/10.1117/12.475704

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available