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Nonlinear Dynamics of Optical Switching Fronts in CdS
Author(s) -
Schmolke R.,
Schöll E.,
Nägele M.,
Gutowski J.
Publication year - 1995
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.2221870247
Subject(s) - front (military) , nonlinear system , traverse , dynamics (music) , nonlinear optics , optics , impurity , optical switch , nonlinear optical , physics , materials science , mechanics , geology , quantum mechanics , meteorology , acoustics , geodesy
A two‐level model for impurity‐related optical switching in lightly doped CdS crystals is developed which explains dynamical switching between a low and a high transmissivity state by a bleaching front traversing the crystal with a velocity of several 10 8 cm/s and offers detailed insight into the internal nonlinear spatio–temporal dynamics of the process. The predicted front is detected experimentally by a 90° pump‐and‐probe configuration. The front velocity in the experiment agrees well with the theoretical prediction.