Title :
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
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;
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
