By Topic

Identification of quantum confined interband transitions in type-II InAs/GaSb superlattices using polarization sensitive photocurrent spectroscopy

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

The purchase and pricing options are temporarily unavailable. Please try again later.
3 Author(s)
Gautam, Nutan ; Center for High Technology Materials, Electrical and Computer Engineering Department, University of New Mexico, Albuquerque, New Mexico 87106, USA ; Barve, Ajit ; Krishna, S.

Your organization might have access to this article on the publisher's site. To check, click on this link: 

We report on the use of polarization sensitive photocurrent spectroscopy for identifying the participating transitions in type-II InAs/GaSb strained layer superlattice system. Transverse electric and transverse magnetic photocurrents have been measured for both midwave infrared and longwave infrared superlattices, and prominent features have been analyzed to identify different interband transition energies and unambiguously predict the correct ordering of hole minibands. The interband transition energies have also been confirmed with theoretical simulations using empirical pseudopotential method. Order of the participating valence minibands has been determined as: heavy-hole1, light-hole1 and light-hole2, with increase in hole energy.

Published in:

Applied Physics Letters  (Volume:101 ,  Issue: 22 )