Far-infrared emission from parabolically graded quantum wells
- 2 December 1996
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 69 (23) , 3522-3524
- https://doi.org/10.1063/1.117232
Abstract
We have observed grating coupled far infrared (FIR) emission from parabolically graded quantum wells (PQWs) by the application of an in‐plane electric field. The peak emission frequency from different wells matches the designed harmonic oscillator frequency for each well, as determined by the curvature of the PQWs. This is a confirmation that the generalized Kohn theorem applies for emission of FIR radiation.Keywords
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