Optical absorption bistability in quasi-one-dimensional peierls semiconductors |
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Authors: | A L Semenov M Sh Sharapov |
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Institution: | (1) Ulyanovsk State University, Ulyanovsk, 432700, Russia |
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Abstract: | The optical absorption coefficient γ of a thin film of a Peierls semiconductor has been calculated in the dipole approximation for direct interband transitions as a function of intensity I and central frequency ω0 of a quasi-monochromatic frequency spectrum near the lower optical transition edge. It is shown that the γ(I, ω0) dependence is strongly nonlinear, and within a certain region of I and ω0 variation, not single-valued, which indicates the onset of resonator-free optical bistability with increasing absorption. |
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