Femtosecond carrier spin dynamics in CdTe/Cd/sub 0.4/Mn/sub 0.4/Te quantum wells

Author

Akimoto, Ryoichi ; Ando, K. ; Sasaki, F. ; Kobayashi, S. ; Tani, Tomoyuki

Author_Institution

Electrotech. Lab., Ibaraki, Japan

fYear

1996

fDate

7-7 June 1996

Firstpage

162

Lastpage

163

Abstract

Summary form only given. We have investigated carrier spin dynamics in CdTe-CdMnTe quantum wells at 6 K by means of the femtosecond time-resolved pump-probe experiment and have observed the spin-relaxation of electrons separately from that of holes. The present pump-probe method has the unconventional configuration in the absorption saturation measured from unoccupied light hole (lh) state and occupied heavy hole (hh) state simultaneously, and pumping and probing one spin state selectively by circular polarized femtosecond pulses.

Keywords

II-VI semiconductors; cadmium compounds; high-speed optical techniques; light polarisation; low-temperature techniques; manganese compounds; optical saturation; semiconductor quantum wells; spin dynamics; 6 K; CdTe-CdMnTe; CdTe-CdMnTe quantum wells; CdTe/Cd/sub 0.4/Mn/sub 0.4/Te quantum wells; absorption saturation; circular polarized femtosecond pulses; femtosecond carrier spin dynamics; femtosecond time-resolved pump-probe experiment; occupied heavy hole; pump-probe method; spin state; spin-relaxation; unoccupied light hole; Absorption; Carrier confinement; Filling; Polarization; Probes; Pulse measurements; Quantum mechanics; Resonance; Solids; Tellurium;

fLanguage

English

Publisher

ieee

Conference_Titel

Quantum Electronics and Laser Science Conference, 1996. QELS '96., Summaries of Papers Presented at the

Conference_Location

Anaheim, CA, USA

Print_ISBN

1-55752-444-0

Type

conf

Filename

865713