Linear and nonlinear Bragg diffraction by electromagnetically induced gratings with symmetry and their active control in a Rydberg atomic gas

J Gao, C Hang, G Huang - Physical Review A, 2022 - APS
Due to its myriad applications in many fields of science and technology, novel light
diffraction from specially designed optical gratings is a subject of great interest. Here, we …

Beam coupling in nanotube-doped liquid-crystal films

W Lee, SL Yeh, CC Chang, CC Lee - Optics Express, 2001 - opg.optica.org
Diffraction gratings written in films of nematic liquid crystals doped with multiwall carbon
nanotubes were investigated by measurements of exponential beam-coupling coefficients …

Approach to space-charge field description in photorefractive crystals

E DelRe, A Ciattoni, B Crosignani, M Tamburrini - JOSA B, 1998 - opg.optica.org
Recent analytical results in the frame of photorefractive spatial-soliton propagation are
exploited to derive a novel scheme for the investigation of space-charge field formation in …

Self-enhancement of dynamic gratings in photogalvanic crystals

NV Kukhtarev, SF Lyuksyutov, P Buchhave… - Physical Review A, 1998 - APS
We have developed a compact closed-form solution of the band transport model for high-
contrast gratings in photogalvanic crystals. Our solution predicts the effect of the …

Photogalvanic/pyroelectric power conversion and self-pulsing of electro-wetting of LC droplet on lithium niobate (LN)-crystal

N Kukhtarev, T Kukhtareva, J Geng, XZ Zhang… - Journal of Molecular …, 2018 - Elsevier
Photogalvanic current and voltage photoinduced by CW laser illumination of Fe-doped LN
reveals quasi-periodic pulsing due to microplasmas discharges. This transformation of …

A unified treatment of radiation-induced photorefractive, thermal, and neutron transmutation gratings

N Kukhtarev, T Kukhtareva… - Proceedings of the …, 1999 - ieeexplore.ieee.org
We have reviewed different types of periodic structures (superlattices) induced by optical,
infrared, and neutron irradiation. Both optical and electrical properties of these superlattices …

Diffraction efficiency of non-uniform gratings in a Bi12SiO20 crystal for a non-linear regime under an external dc field

I Casar, JG Murillo, LF Magana - Physics Letters A, 2006 - Elsevier
We assess the influence of the non-uniformity of a recorded grating on the prediction of the
diffraction efficiency taking into account optical activity, absorption of light, birefringence …

Running gratings in photoconductive materials

NV Kukhtarev, T Kukhtareva, SF Lyuksyutov… - JOSA B, 2005 - opg.optica.org
Starting from the three-dimensional version of a standard photorefractive model (STPM), we
obtain a reduced compact set of equations for an electric field based on the assumption of a …

Computer simulation of multiple dynamic photorefractive gratings

P Buchhave - JOSA B, 1998 - opg.optica.org
The benefits of a direct visualization of space-charge grating buildup are described. The
visualization is carried out by a simple repetitive computer program, which simulates the …

Photorefractive hologram writing with high modulation depth in photovoltaic media under different boundary conditions

WK Lee, TS Chan - Optics communications, 2008 - Elsevier
Photorefractive recording response to sinusoidal intensity pattern in photovoltaic media
under different boundary conditions, namely, open-circuit, crystal-resistor-circuit, short-circuit …