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Quantum Theory of Free‐Carrier Absorption in Quasi‐Two‐Dimensional Semiconducting Structures. Degenerate Carrier Case
Author(s) -
Comas F.,
Giner C. Trallero,
León H.
Publication year - 1986
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221380122
Subject(s) - degenerate energy levels , free carrier absorption , attenuation coefficient , absorption (acoustics) , free carrier , quantum , degenerate semiconductor , condensed matter physics , physics , quantum mechanics , semiconductor , materials science , optics
Free‐carrier absorption coefficient of light is calculated for the case of quasi‐two‐dimensional (Q‐2D) semiconducting systems (of the kind of “quantum well” structures) assuming the conditions for highly degenerate carrier statistics are fulfilled. A comparison with recent results for the case of non‐degenerate carrier statistics is made: higher absorption coefficient for lower values of the quantum‐well width is predicted (as in the non‐degenerate case), but the absorption coefficient is lower for the degenerate carrier case.