In:
Applied Physics Letters, AIP Publishing, Vol. 83, No. 6 ( 2003-08-11), p. 1063-1065
Abstract:
We present a study of far-infrared intersubband electroluminescence from a number of GaAs–Al0.15Ga0.85As quantum-cascade emitters with emission energies below the LO phonon energy. A range of samples with emission energies between 13 and 21 meV were investigated. A systematic decrease in the normalized emission intensity with increasing intersubband separation was observed. The possible mechanisms such as the grating coupling efficiency and the role of scattering processes are discussed.
Type of Medium:
Online Resource
ISSN:
0003-6951
,
1077-3118
Language:
English
Publisher:
AIP Publishing
Publication Date:
2003
detail.hit.zdb_id:
211245-0
detail.hit.zdb_id:
1469436-0