Ukrainian Journal of Physical Optics 


Number  2, Volume 4,  2003

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Polarizable Optical Bistability of Frenkel Excitons 
Derevyanchuk O., Zenkova C., Kramar V., Nitsovich B., Poterejko O.

Dept. of Optics and Spectroscopy, Chernivtsi National University, 2, Kotsyubynsky Str., Chernivtsi, 58012, Ukraine

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Optical spectra of molecular crystals with two molecules in their elementary cell are investigated. Depending on the polarization angle one or two exciton excitation bands can be realized in the spectrum. The bands are separated by the terminal frequency interval. The exciton absorption bands genesis and the peculiarities of the function of their form at the change of the laser radiation polarization have been analyzed and the regularity of arising bistable states in organic benzol-type crystals has been established.
Keywords: exciton, molecular crystal, optical bistability
PACS: 71.3S-y.

doi 10.3116/16091833/4/2/68/2003

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