Ultrafast optical response and inter-valley scattering in GaSb/AlSb quantum wells

We report femtosecond time-resolved differential transmission measurements of GaSb/AlSb quantum wells which reveal direct evidence of electron Gamma-L intervalley scattering. Raman measurements of non-equilibrium phonons generated by intra-Gamma electron relaxation yield a complementary picture of t...

Ausführliche Beschreibung

Bibliographische Detailangaben
Hauptverfasser: Smith, D, O'Sullivan, E, Rota, L, Maciel, A, Ryan, J
Format: Conference item
Veröffentlicht: 1998
Beschreibung
Zusammenfassung:We report femtosecond time-resolved differential transmission measurements of GaSb/AlSb quantum wells which reveal direct evidence of electron Gamma-L intervalley scattering. Raman measurements of non-equilibrium phonons generated by intra-Gamma electron relaxation yield a complementary picture of the carrier dynamics, confirming the measured intervalley scattering rate. (C) 1998 Published by Elsevier Science B.V. All rights reserved.