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Nonlinear Exciton Transmission in CdS Non‐Homogeneous and Non‐Stationary Model Calculations
Author(s) -
Nguyen Hoang Xuan,
Zimmermann R.
Publication year - 1984
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.2221240120
Subject(s) - exciton , nonlinear system , hysteresis , transmission (telecommunications) , transient (computer programming) , diffusion , gaussian , homogeneous , condensed matter physics , physics , materials science , semiconductor , chemistry , statistical physics , quantum mechanics , computer science , telecommunications , operating system
The transmission of a thin semiconductor platelet is studied by solving Maxwell's equation together with a rate equation for the exciton concentration. The concentration induced exciton broadening serves as nonlinear mechanism. Numerical results for the diffusion‐controlled concentration profile in the sample are presented. As a second case, the temporal transmission lineshape of a Gaussian input pulse is calculated and compared with our experimental results on CdS. The hysteresis phenomenon found is interpreted in terms of a transient effect.