The dynamic behavior of the complementary space-charge gratings formed in a
Bi_12SiO_20 crystal through prolonged recording at 780 nm is used to determine a number …

We present the results of a comparative experimental study of optical and photorefractive
properties at room temperature of four nominally undoped, single‐crystal, commercially …

We employ an optical technique requiring no electrodes to measure three parameters
characterizing photorefractive traps in nominally undoped n-type bismuth silicate at 515-and …

The dynamic response of the photorefractive signal in Bi12Si020 with no external electric
field was studied as a function of temperature. At low temperatures, the response follows the …

This is the first characterization of both positive and negative charge carriers as well as deep
traps in any crystal sufficient to predict photorefractive behavior for all beam geometries on …

SiO 20 crystals in the diffusion regime. We find unusually high cross-talk for two gratings with
close spatial frequencies at wavelengths 488 and 476 nm. The results indicate that the …

The photorefractive effect in materials such as bismuth silicon oxide BSO depends on
photoionizing deep defect levels inadvertently present rather than controllably introduced …

Dark decay of photorefractive gratings and persistent photocurrents in Bi12SiO20 are
interpreted using a model of the photorefractive effect which includes shallow traps as well …

We have measured the temperature dependence of the electron mobility in a single crystal
of photorefractive n-type cubic Bi_12SiO_20 by using a holographic time-of-flight technique …

Beam coupling effects in an optically active photorefractive crystal of Bi 12 SiO 20 are very
much influenced by the polarization direction of the interacting beams. Analytic expressions …