Actively stabilized holographic recording for the measurement of photorefractive properties of a Ti-doped KNSBN crystal

S Bian, J Frejlich - JOSA B, 1995 - opg.optica.org
We report the use of actively stabilized holographic recording in high-diffraction-efficiency
crystals in which strong energy coupling occurs. We use this technique to characterize the …

Photorefractive properties of undoped, Cr-doped, and Cu-doped potassium sodium strontium barium niobate crystals

Y Tomita, J Bergquist, M Shibata - JOSA B, 1993 - opg.optica.org
We determine several photorefractive properties of undoped, Cr-doped, and Cu-doped
(KyNa_1–y) _2z,(SrxBa_1–x) _1–z Nb_2O_6 (KNSBN) crystals by means of two-beam …

Superior real-time holographic storage properties in doped potassium sodium strontium barium niobate crystal

Y Li, S Liu, M Yang, K Yang, K Xu, F Hou - Optics letters, 1997 - opg.optica.org
We demonstrate superior holographic storage performance in a cobalt doped potassium
sodium strontium barium niobate (Co: KNSBN) crystal that possesses a fast response time of …

Moving grating for enhanced holographic recording in cerium-doped Sr0.6Ba0.4Nb2O6

J Ma, JE Ford, Y Taketomi, SH Lee - Optics letters, 1991 - opg.optica.org
We demonstrate that holographic recording in photorefractive materials can be improved by
using a moving grating to reduce energy coupling. In cerium-doped Sr_0. 6Ba_0 …

Selective page-addressable fixing of volume holograms in Sr0.75Ba0.25Nb2O6 crystals

A Kewitsch, M Segev, A Yariv, R Neurgaonkar - Optics letters, 1993 - opg.optica.org
We demonstrate selective fixing of volume holograms in photorefractive media. Each
holographic page may be fixed individually and overwritten without destroying the other …

Electrical domain fixing of photorefractive index gratings in (K 0.5 Na 0.5) 0.2 (Sr 0.75 Ba 0.25) 0.9 Nb 2 O 6 crystals

X Shen, J Zhao, R Wang, Z Cheng, S Zhang… - Applied Physics …, 2000 - pubs.aip.org
Electrical domain fixing in Cu-and Mn-doped (K0. 5Na0. 5 0.2 Sr0. 75Ba0. 25 0.9Nb2O6
KNSBN crystals is presented. The relation between the applied field and the revealed …

Near-infrared photorefractivity in Cr-doped potassium sodium strontium barium niobate single crystal

J Bergquist, Y Tomita, M Shibata - Applied Physics A, 1992 - Springer
We report on the photorefractive properties of a Cr-doped (K 1− x Na x) 2 A− 2 (Sr y Ba 1− y)
2− A Nb 10 O 30 (x= 0.586, y= 0.659, A= 1.12) single crystal in the near-infrared spectrum …

Long dark decay in highly sensitive Ce doped photorefractive KNbO3 crystals

R Ryf, G Montemezzani, P Günter - Journal of Optics A: Pure and …, 2001 - iopscience.iop.org
We show that cerium doped KNbO 3 crystals exhibit high photorefractive sensitivities of S 1=
25× 10-11 m 3 J-1 and S 2= 78× 10-9 m 2 J-1 at 488 nm. The grating build-up time at a …

Temperature dependence of photorefractive properties of strontium‐barium niobate (Sr0.6Ba0.4Nb2O6)

D Rytz, BA Wechsler, RN Schwartz… - Journal of applied …, 1989 - pubs.aip.org
Beam coupling gain and response time together with reflectivity and response time of an
external ring phase-conjugate mirror are studied as a function of temperature for a crystal of …

Fast photorefractive response and high sensitivity of Zr and Fe codoped LiNbO3 crystals

Y Kong, S Wu, S Liu, S Chen, J Xu - Applied Physics Letters, 2008 - pubs.aip.org
A series of Zr and Fe codoped Li Nb O 3 crystals was grown and their photorefractive
properties have been investigated. Compared with Li Nb O 3: Fe, Hf⁠, the concentration of …