Observation of anomalously large blue shift of the heavy-hole photocurrent peak and optical bistability in narrow asymmetric coupled quantum wells
- 26 August 1991
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 59 (9) , 1025-1027
- https://doi.org/10.1063/1.106333
Abstract
Blue shift of the heavy-hole peak of the photocurrent spectra has been observed, for the first time, in narrow GaAs/Al0.4Ga0.6As asymmetric coupled quantum wells near the heavy-hole resonance. With an external reverse bias of only −2.35 V, a maximum upward shift of the apparent peak position of ∼6.1 meV has been measured at 78 K. Sharp change of the inhomogeneous linewidth of the heavy-hole peak has also been observed. cw optical bistability has been observed with the external feedback.Keywords
This publication has 17 references indexed in Scilit:
- Observation of room-temperature blue shift and bistability in a strained InGaAs-GaAs 〈111〉 self-electro-optic effect deviceApplied Physics Letters, 1990
- Optoelectronic applications of quantum wellsOptics and Photonics News, 1990
- Electroabsorption in As/As asymmetric coupled quantum wells grown on InP substratesPhysical Review B, 1989
- Optical bistability in self-electro-optic effect devices with asymmetric quantum wellsApplied Physics Letters, 1989
- Low-temperature photocurrent studies of electron-state coupling in asymmetric coupled quantum wellsPhysical Review B, 1989
- Observation of the Wannier-Stark Quantization in a Semiconductor SuperlatticePhysical Review Letters, 1988
- Stark effect in AlxGa1−xAs/GaAs coupled quantum wellsApplied Physics Letters, 1987
- Effect of band hybridization on exciton states in GaAs-As quantum wellsPhysical Review B, 1985
- The quantum well self-electrooptic effect device: Optoelectronic bistability and oscillation, and self-linearized modulationIEEE Journal of Quantum Electronics, 1985
- Band-Edge Electroabsorption in Quantum Well Structures: The Quantum-Confined Stark EffectPhysical Review Letters, 1984