Title :
Ultrafast in well screening of the piezoelectric field in (111) quantum wells
Author :
Likforman, J.-P. ; Alexandrou, A. ; Vanelle, E. ; Block, Dimitri ; Cibert, J. ; Romestain
Author_Institution :
CNRS, Ecole Polytech., Palaiseau, France
Abstract :
Summary form only given. In this work, we have observed ultrafast establishment of in-well screening in a MQW structure consisting of 40 101-/spl Aring/ CdTe quantum wells separated by 950-/spl Aring/: CdMnTe (x=17.5%) barriers. Pump probe transmission experiments were performed at 15 K with use of a colliding pulse mode locked laser.
Keywords :
II-VI semiconductors; cadmium compounds; high-speed optical techniques; laser mode locking; low-temperature techniques; measurement by laser beam; optical pumping; semiconductor quantum wells; shielding; 101 A; 15 K; 950 A; CdMnTe; CdMnTe barriers; CdTe; CdTe quantum wells; MQW structure; colliding pulse mode locked laser; in well screening; piezoelectric field screening; pump probe transmission experiments; quantum wells; Absorption; Delay; Energy resolution; Excitons; Laser modes; Piezoelectric effect; Pulse amplifiers; Pump lasers; Quantum well devices; Quantum well lasers;
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
