TEMPERATURE-DEPENDENT STUDY OF OPTICAL GAIN IN (ZN,CD)SE ZNSE MULTIPLE-QUANTUM-WELL STRUCTURES/

Authors
KRELLER F PULS J HENNEBERGER F
Citation
F. Kreller et al., TEMPERATURE-DEPENDENT STUDY OF OPTICAL GAIN IN (ZN,CD)SE ZNSE MULTIPLE-QUANTUM-WELL STRUCTURES/, Applied physics letters, 69(16), 1996, pp. 2406-2408
Citations number
20
Categorie Soggetti
Physics, Applied
Journal title
Applied physics letters → ACNP
ISSN journal
00036951
Volume
69
Issue
16
Year of publication
1996
Pages
2406 - 2408
Database
ISI
SICI code
0003-6951(1996)69:16<2406:TSOOGI>2.0.ZU;2-M
Abstract
The role of excitons in the laser action of ternary II-VI quantum well s is investigated. As a consequence of an increased stability due to l ocalization on alloy disorder, bi-excitons are dominant up to temperat ures clearly above 100 K. Steady-state pump-probe measurements reveal a bi-excitonic gain as large as 2.5x10(4) cm(-1). Above 200 K, the thr eshold density grows steeply and the laser emission turns into electro n-hole plasma recombination. (C) 1996 American Institute of Physics.