Infrared electro-optical modulators based on field-induced Γ-L intervalley transfer
- 6 November 1995
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 67 (19) , 2756-2758
- https://doi.org/10.1063/1.114583
Abstract
Electro‐optical modulators based on intersubband transitions induced by normal‐incidence radiation in GaSb‐AlSb‐family asymmetric double quantum wells are proposed. An applied field transfers electrons from Γ‐valley states in one well to L‐valley states in the other well, thereby radically altering the selection rules, resonance energies, and in‐plane effective masses.Keywords
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