Nonunidirectional energy exchange upon the steady-state two-wave interaction in a cubic gyrotropic photorefractive crystal in a dc electric field

Journal Article · Thu Nov 29 23:00:00 EST 2001 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2001V031N11ABEH002086· OSTI ID:21454747

Litvinov, Rudol'f V; Shandarov, S M ^[1]

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1. Division of Electronic Devices, Tomsk University of Control Systems and Radioelectronics, Tomsk (Russian Federation)

The steady-state two-wave interaction on a transmission photorefractive grating produced in a cubic gyrotropic crystal of the symmetry group 23 in an external dc electric field is studied. The analytic solution of the equation for coupled waves is obtained for an arbitrary orientation of the crystal and arbitrary polarisation of incident light beams in the fixed pump approximation. It is shown that a nonunidirectional contribution to the energy exchange between the waves can exist, which is caused by the local component of the photorefractive grating. In a particular case of light waves with a wavelength of 633 nm propagating in the (001) plane of a Bi{sub 12}TiO{sub 20} crystal and of the orientation of the grating vector along the [110] axis, this contribution greatly exceeds a usual unidirectional contribution. The dependence of the two-wave gain on the modulation coefficient of the interference pattern on the input face of the crystal is studied by numerically integrating a total system of coupled-wave equations. (nonlinear optical phenomena)

• OSTI ID: 21454747
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Journal Name: Quantum Electronics (Woodbury, N.Y.) Journal Issue: 11 Vol. 31; ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ANALYTICAL SOLUTION
APPROXIMATIONS
BEAMS
CALCULATION METHODS
CRYSTALS
DIFFERENTIAL EQUATIONS
ELECTRIC FIELDS
ELECTROMAGNETIC RADIATION
ENERGY TRANSFER
EQUATIONS
GRATINGS
INTERACTIONS
INTERFERENCE
MATHEMATICAL SOLUTIONS
MODULATION
PARTIAL DIFFERENTIAL EQUATIONS
PHOTON BEAMS
POLARIZATION
RADIATIONS
REFRACTION
STEADY-STATE CONDITIONS
SYMMETRY GROUPS
TRANSMISSION
VISIBLE RADIATION
WAVE EQUATIONS
WAVELENGTHS