INHOMOGENEOUS BROADENING OF INTERSUBBAND TRANSITIONS IN IN0.45GA0.55AS AL0.45GA0.55AS MULTIPLE-QUANTUM WELLS/

Authors
BEADIE G RABINOVICH WS KATZER DS GOLDENBERG M
Citation
G. Beadie et al., INHOMOGENEOUS BROADENING OF INTERSUBBAND TRANSITIONS IN IN0.45GA0.55AS AL0.45GA0.55AS MULTIPLE-QUANTUM WELLS/, Physical review. B, Condensed matter, 55(15), 1997, pp. 9731-9739
Citations number
47
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
55
Issue
15
Year of publication
1997
Pages
9731 - 9739
Database
ISI
SICI code
0163-1829(1997)55:15<9731:IBOITI>2.0.ZU;2-2
Abstract
The contributions of homogeneous and inhomogeneous broadening mechanis ms to the linewidth of an intersubband transition in an In0.45Ga0.55As /Al0.45Ga0.55As multiple quantum well are determined by line-shape fit ting and saturation intensity spectroscopy. An intersubband transition at 327 meV is found with a total linewidth of 36 meV and an underlyin g homogeneous linewidth of 14 meV. The sizes of various sources of inh omogeneous broadening are estimated and the implications for intersubb and nonlinear optics are discussed.