FAR-INFRARED EMISSION FROM PARABOLICALLY GRADED QUANTUM-WELLS

Authors
MARANOWSKI KD GOSSARD AC UNTERRAINER K GORNIK E
Citation
Kd. Maranowski et al., FAR-INFRARED EMISSION FROM PARABOLICALLY GRADED QUANTUM-WELLS, Applied physics letters, 69(23), 1996, pp. 3522-3524
Citations number
18
Categorie Soggetti
Physics, Applied
Journal title
Applied physics letters → ACNP
ISSN journal
00036951
Volume
69
Issue
23
Year of publication
1996
Pages
3522 - 3524
Database
ISI
SICI code
0003-6951(1996)69:23<3522:FEFPGQ>2.0.ZU;2-P
Abstract
We have observed grating coupled far infrared (FIR) emission from para bolically graded quantum wells (PQWs) by the application of an in-plan e electric field. The peak emission frequency from different wells mat ches the designed harmonic oscillator frequency for each well, as dete rmined by the curvature of the PQWs. This is a confirmation that the g eneralized Kohn theorem applies for emission of FIR radiation. (C) 199 6 American Institute of Physics.