Light-induced charge transport processes are essential for photorefractive effects in
electrooptic crystals. Charge driving forces, charge transport models and experimental …

Abstract Bi12GeO20 (BGO) and Bi12SiO20 (BSO) single crystals doped with Al, Ga, P, Pb,
Or, Nd, Zn, Fe, and Eu are grown from the melt in good optical quality. The segregation …

A systematic investigation of deep levels in undoped and doped (Fe, Fe/V, excess of Bi)
single crystals of Bi12 GeO20 (BGO) has been performed by photoinduced current transient …

We have observed modulation of the dark current in Bi12SiO20 (BSO) as a function of prior
irradiation, and a time‐varying absorption of radiation that is dependent upon prior …

The photoconductive and photorefractive properties of three undoped sellenite crystals
(Bi12SiO20-Bi12GeO20) are investigated. We report, high grating diffraction efficiencies …

Thermally stimulated current (TSC) of nominally undoped bismuth silicon oxide crystals was
measured after UV excitation at liquid nitrogen temperature. The results were compared with …

Photoconduction and hologram recording in a Bi 12 SiO 20 single crystal are studied from
both theoretical and experimental points of view in the case of short pulse excitations. An …

A method to characterize the photorefractive parameters of Bi 12 GeO 20 crystal is
described. An analysis of the transient photoinduced grating under an external applied …

The role of defects in the photorefractive effect is known in principle: their photoionization in
the brighter regions of a photorefractive crystal, illuminated by an inhomogeneous light …

The photoconductivity of BSO was investigated through the dependence of the photocurrent
on wavelength and power. The variation of the photocurrent and the photorefractive effect as …