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Resonatorless Optical Bistability Based on Increasing Nonlinear Absorption
Author(s) -
Hennebeger F.,
Rossmann H.
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.2221210227
Subject(s) - bistability , optical bistability , attenuation coefficient , absorption (acoustics) , hysteresis , diffusion , excitation , materials science , resonator , nonlinear optical , nonlinear system , optoelectronics , nonlinear optics , optics , condensed matter physics , physics , thermodynamics , laser , quantum mechanics
A new type of optical bistability is presented. Instead of a resonator the intrinsic feedback between the optical excitation of carriers and their recombination is used. Optical bistability appears, if the absorption coefficient increases with growing carrier density. Both propagation effects and carrier diffusion are considered. Analytical model calculations are carried out for an abrupt behaviour of the absorption coefficient. The results explain the hysteresis in the transmittivity of CdS, recently observed.