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BISTABLE OPTIC MODULATORS MADE FROM MONOCRYSTALLINE LAYERS GaSe (Cu)

M. Caraman1, E. Cuculescu1, I. Evtodiev1,*

Affiliation

  1. State University of Moldova, Department of Physics, Chishinau, MD 2009, Mateevici 60, Moldova

Abstract

Fabry-Perot interferometer was constructed on the basis of parallel - slides plates cut off from the GaSe(Cu) single crystals with Cu concentration of 0.05 at%. The thickness of these plates was equal to 5 ÷ 10 µm. Dielectric glass, which consisted of 7 ZnS layers and 7 MgF2 layers with λ/4 thickness, was placed on lateral surfaces of the plates. The reflectance of the glass was equal to ∼ 73%. The dependence of interferometer transparency on the intensity of incident radiation with 0.6328 µm wavelength is studied. The threshold intensity, for which periodic pulsations of transmission are observed, is determined from this dependence..

Keywords

Galium selenide, Optical properties, Bistable optic modulators.

Submitted at: Feb. 25, 2005
Accepted at: March 23, 2005

Citation

M. Caraman, E. Cuculescu, I. Evtodiev, BISTABLE OPTIC MODULATORS MADE FROM MONOCRYSTALLINE LAYERS GaSe (Cu), Journal of Optoelectronics and Advanced Materials Vol. 7, Iss. 2, pp. 805-810 (2005)