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Nonlinear Absorption in Quantum‐Size Heterostructures
Author(s) -
Konko V. K.
Publication year - 1988
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.2221500256
Subject(s) - quantum well , heterojunction , quantum , condensed matter physics , absorption spectroscopy , absorption (acoustics) , saturation (graph theory) , nonlinear system , excitation , sawtooth wave , spectral line , materials science , physics , quantum mechanics , optics , laser , mathematics , telecommunications , combinatorics , computer science
A theory is developed of absorption saturation on filling the subbands appearing in quantum wells. It is shown that the bleaching spectrum of quantum‐size heterostructures has a resonant, sawtooth shape. The transformation of nonlinear absorption spectra is analyzed depending on the layer thickness, temperature, excitation power, and the character of optical transitions between the electronic states in the quantum wells.