Abstract
Mid-infrared intersubband emission is investigated in GaAs/AlGaAs asymmetric coupled quantum wells exhibiting an energy separation between the ground and first excited subbands close to the LO-phonon energy. The authors show that an infrared emission occurs between excited subbands under intersubband optical pumping.
| Original language | English |
|---|---|
| Pages (from-to) | 912-913 |
| Number of pages | 2 |
| Journal | Electronics Letters |
| Volume | 31 |
| Issue number | 11 |
| DOIs | |
| State | Published - 25 May 1995 |
Keywords
- Optical pumping
- Semiconductor quantum wells. Stimulated emission