Premium
Nonlinear Optical Absorption in I‐VII and II‐VI Microcrystallites under Quantum Confinement of Elementary Excitations
Author(s) -
Zimin L. G.,
Gaponenko S. V.,
Lebed V. Yu.,
Malinovskii I. E.,
Germanenko I. N.,
Podorova E. E.,
Tsekhomskii V. A.
Publication year - 1990
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.2221590131
Subject(s) - crystallite , quantum dot , exciton , condensed matter physics , saturation (graph theory) , spectroscopy , absorption (acoustics) , absorption spectroscopy , potential well , quantum well , materials science , doping , blueshift , photoluminescence , chemistry , molecular physics , physics , laser , optics , optoelectronics , quantum mechanics , crystallography , mathematics , combinatorics
The nonlinear absorption of quantum‐confined CuCl and CdS x Se 1− x crystallites imbedded in a glass matrix is investigated by means of laser spectroscopy. For CuCl in which the quantum confinement of excitons takes place a considerable light‐induced blue shift of excitonic bands is observed which is attributed to the interaction of exciton‐like excitations under quantum confinement. A decrease of the saturation intensity with decreasing size of the crystallites is detected for CuCl‐doped glasses. In CdS x Se 1− x ‐doped glasses where quantum confinement of free carriers predominates no distinct correlation between the crystal size and the saturation intensity is observed.