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Nonlinearities of CuCl Microcrystals
Author(s) -
Gilliot P.,
Hönerlage B.,
Levy R.,
Grun J. B.
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.2221590130
Subject(s) - exciton , nanosecond , absorption (acoustics) , radiative transfer , materials science , population , optoelectronics , molecular physics , optics , chemistry , physics , condensed matter physics , laser , demography , sociology
Using a “pump and probe” technique, a strong blue shift and a bleaching is measured of the Z 3 excitonic absorption line of CuCl microcrystallites embedded in glass. These effects are attributed to exciton exciton‐interactions. They show a response time shorter than the nanosecond. This seems to be mainly due to a fast non‐radiative decay of the excitonic population, leading to a heating‐up of the microcrystals.