Influence of piezoelectric effect on photorefractive gratings in electro-optic crystals
S Shandarov - Applied Physics A, 1992 - Springer
The general equations applicable to the description of different photorefractive effects in
electro-optic crystals, taking into account their piezoelectric properties, have been …
electro-optic crystals, taking into account their piezoelectric properties, have been …
Time-dependent nonlinear photorefractive response to sinusoidal intensity gratings
N Singh, SP Nadar, PP Banerjee - Optics communications, 1997 - Elsevier
The time-dependent, nonlinear Kukhtarev equations are numerically solved to determine the
temporal and spatial dependence of the space-charge field for a sinusoidal intensity profile …
temporal and spatial dependence of the space-charge field for a sinusoidal intensity profile …
Spatial subharmonic instabilities
CH Kwak, J Takacs, L Solymar - Optics communications, 1993 - Elsevier
A simple theory based on Kukhtarev's materials equations and linear stability analysis is
developed providing the threshold conditions for the spontaneous emergence of spatial …
developed providing the threshold conditions for the spontaneous emergence of spatial …
Photorefractive self-trapping and deflection of optical beams
The band transport model is used to derive the space-charge field induced by an optical
beam propagating in photorefractive materials with the application of an external dc field in …
beam propagating in photorefractive materials with the application of an external dc field in …
Three-dimensional optical beam propagation and solitons in photorefractive crystals
B Crosignani, P Di Porto, A Degasperis, M Segev… - JOSA B, 1997 - opg.optica.org
The model equations for beam propagation in photorefractive material are simplified under
appropriate conditions. The possibility of obtaining bright and dark screening soliton …
appropriate conditions. The possibility of obtaining bright and dark screening soliton …
Higher harmonic gratings in photorefractive materials at large modulation with moving fringes
LB Au, L Solymar - JOSA A, 1990 - opg.optica.org
The nonlinear differential equations describing the response of photorefractive material to a
moving sinusoidal intensity pattern that permits large modulation depth are solved by a …
moving sinusoidal intensity pattern that permits large modulation depth are solved by a …
Nonlinear surface waves on the boundary of a photorefractive crystal
BA Usievich, DK Nurligareev, VA Sychugov… - Quantum …, 2010 - iopscience.iop.org
Excitation of nonlinear surface waves is studied at the SBN-75 crystal—air interface. The
SBN-75 crystal is characterised by the diffusion-type photorefractive nonlinearity, the surface …
SBN-75 crystal is characterised by the diffusion-type photorefractive nonlinearity, the surface …
Self-excitation of space charge waves
SF Lyuksyutov, P Buchhave, MV Vasnetsov - Physical review letters, 1997 - APS
We report a direct observation of space charge waves in photorefractive crystals with point
group 23 (sillenites) based on their penetration into an area with uniform light illumination. It …
group 23 (sillenites) based on their penetration into an area with uniform light illumination. It …
Nonlinear photorefractive response at high modulation depths
F Vachss, L Hesselink - JOSA A, 1988 - opg.optica.org
The response of photorefractive materials to sinusoidal intensity patterns of high modulation
depths is considered. It is shown that the induced refractive-index response in this regime is …
depths is considered. It is shown that the induced refractive-index response in this regime is …