2-COLOR NORMAL-INCIDENCE ABSORPTION OF N-TYPE QUANTUM-WELLS

Authors
XU WL MU YM SHEN SC FU Y WILLANDER M
Citation
Wl. Xu et al., 2-COLOR NORMAL-INCIDENCE ABSORPTION OF N-TYPE QUANTUM-WELLS, Semiconductor science and technology, 12(11), 1997, pp. 1425-1428
Citations number
11
Categorie Soggetti
Engineering, Eletrical & Electronic","Physics, Condensed Matter","Material Science
Journal title
Semiconductor science and technology → ACNP
ISSN journal
02681242
Volume
12
Issue
11
Year of publication
1997
Pages
1425 - 1428
Database
ISI
SICI code
0268-1242(1997)12:11<1425:2NAONQ>2.0.ZU;2-2
Abstract
In n-type step quantum wells composed of indirect-gap semiconductor ma terial, the optical transitions that are forbidden in commonly used Ga As/GaAlAs square quantum wells are allowed, The oscillator strengths o f intersubband transitions from the ground state to the second and the third excited states for normal-incidence absorption in n-type Ga1-xA lxSb (0.2 < x < 0.55) step quantum wells are discussed theoretically, This research makes it possible to provide a new kind of two-colour in frared detector in the case of normal-incidence.