Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
Conferences > IQEC > 1992 > PTu > PTu102
  • XVIII International Quantum Electronics Conference
  • Technical Digest Series (Optica Publishing Group, 1992),
  • paper PTu102

Intervalley Scattering in Direct Gap Al0.48 Ga0.52 As Alloys

L. H. F. Andrade, C. H. Brito Cruz, and M. A Sacilloti

Not Accessible

Your library or personal account may give you access

Abstract

We measured the recovery time of the bleaching in Al0.48 Ga0.52As alloy. For this composition the material has an indirect band gap. The bleaching recovers with a time constant of 80 fs. Despite of its technological importance this alloy has not been studied in the indirect gap with femtosecond spectroscopy. We attribute this ultrafast recovery to electronic intervalley transfer between electrons excited at the bottom of the Γ valley to states down at the X valley.

© 1992 IQEC

PDF Article
More Like This
Transient intersubband absorption spectra of hot electrons in a modulation doped Ga0.47In0.53As/Al0.48In0.52As MQW structure

R. J. BAUERLE, T. ELSAESSER, H. LOBENTANZER, W. STOLZ, and K. PLOOG
QWH4 International Quantum Electronics Conference (IQEC) 1990

Performance of a Ga0.47In0.53As/Al0.48 In0.52As modulation-doped photoconductive detector

C. Y. Chen, Y. M. Pang, A. Y. Cho, K. Alavi, and P. A. Garbinski
TuH4 Optical Fiber Communication Conference (OFC) 1984

Saturation and blue shift of the excitonic resonance in a thin Ga0.47In0.53As / Al0.48In0.52As multiple-quantum-well structure

H. Lobentanzer, W. Stolz, and K. Ploog
TuP27 International Quantum Electronics Conference (IQEC) 1988

View More...
Select as filters
Select Topics Cancel
Top
       
© Copyright 2024 | Optica Publishing Group. All rights reserved, including rights for text and data mining and training of artificial technologies or similar technologies.
Privacy | Terms of Use