Fundamental space-charge fields for applied alternating electric fields in photorefractive materials

A Grunnet-Jepsen, CH Kwak, I Richter, L Solymar - JOSA B, 1994 - opg.optica.org
The fundamental component of the space-charge field in a photorefractive crystal is studied
in the presence of an applied alternating electric field. A general equation for the amplitude …

Nonlinearity of a response in photorefractive crystals with a square-wave applied field

SM Shandarov, NI Nazhestkina, OV Kobozev… - Applied Physics B, 1999 - Springer
The space-charge-field formation in a photorefractive crystal illuminated by a one-
dimensional light pattern is studied when an alternating square-wave electric field is applied …

Space charge fields in photorefractive crystals in the presence of direct current and alternating current fields: A new resonance

VA Kalinin, L Solymar - Applied physics letters, 1996 - pubs.aip.org
It is shown theoretically that the space charge field generated by two‐wave mixing in a
photorefractive crystal may have a resonant response when a dc field and a sinusoidal ac …

Space charge field enhancement in photorefractive materials by applied sinusoidal fields: An approximate analytical solution

I Aubrecht, L Solymar, A Grunnet-Jepsen - Optics communications, 1997 - Elsevier
The second order temporal differential equation, known to describe the space charge field in
the high frequency region, is solved approximately in a closed analytical form. The condition …

Space charge fields in photorefractive materials

L Solymar, T Wilson, JM Heaton - International journal of …, 1984 - Taylor & Francis
Space charge fields in photorefractive materials Page 1 INT. J. ELECTRONICS, 1984, VOL.
57, No.1, 125-127 Space charge fields in photorefractive materials L. SOLYMARt, T. WILSONt …

Photorefractive space-charge field with running grating and applied sinusoidal ac electric field: solution for all time scales

PM Johansen, HC Pedersen - JOSA B, 1998 - opg.optica.org
We present the first complete theoretical model that describes the formation of the space-
charge field in a photorefractive material that is exposed to a sinusoidal ac electric field with …

Two-wave mixing in photorefractive crystals at asymmetric ac field

AV Dooghin, BY Zel'dovich - Optics communications, 1993 - Elsevier
Two-wave mixing in photorefractive crystals at asymmetric ac field Page 1 Optics
Communications 99 ( 1993 ) 221-224 North-Holland OPTICS COMMUNICATIONS Two-wave …

Subharmonic instabilities in photorefractive crystals for an applied alternating electric field: theoretical analysis

A Grunnet-Jepsen, I Richter, M Shamonin, L Solymar - JOSA B, 1994 - opg.optica.org
The spatial subharmonic instability arising from the material equations is investigated
theoretically for both square and sinusoidal applied alternating electric fields. The threshold …

Resonant two-wave mixing in photorefractive materials with the aid of dc and ac fields

VA Kalinin, K Shcherbin, L Solymar, J Takacs… - Optics letters, 1997 - opg.optica.org
A recently predicted resonant effect for the enhancement of two-wave mixing in
photorefractive materials is investigated. The resonance occurs when the frequency of the …

Theory of photorefractive effects in electro-optic crystals

GC Valley, JF Lam - Photorefractive Materials and Their Applications I …, 2005 - Springer
This chapter provides a detailed review of theoretical work on the photorefractive effect. The
physical model of photorefractivity used here, which now seems well established by many …