Doping the photorefractive material bismuth germanium oxide, Bi 12 Ge O 20 (BGO), with
the 4 d atom molybdenum introduces only a small shift to lower energy in the absorption …

Doping the photorefractive material bismuth germanium oxide Bi 12 GeO 20 (BGO) with
chromium significantly affects its optical properties. An absorption spectrum taken at 300 K …

Exposing the photorefractive bismuth germanium oxide (BGO) at low temperatures to 2.5–
3.3 eV light produces photochromic absorption bands. In both undoped and Fe‐doped …

Gallium is one of several dopants that electronically compensate the deep donor
responsible for the yellow coloration observed in bismuth germanium oxide (BGO). A series …

The kinetics of the production and dark-decay of index gratings in chromium-doped bismuth
germanium oxide Bi 12 GeO 20 (BGO) and undoped BGO were investigated as a function of …

Photorefractive (PR) gratings have been induced by 442-nm light illumination in
Bi_4Ge_3O_12 single crystals doped with Cr impurities. In undoped material no grating was …

Exposing the photorefractive material bismuth silicon oxide (BSO) at low temperatures to 2.4–
3.3 eV light produces photochromic absorption bands. In undoped and Fe‐doped BSO …

Abstract Doping Bi 4 Ge 3 O 12 single crystals with Co impurities enables the presence of a
photochromic behavior which is induced at room temperature (rt) with ultraviolet (uv) light …

The low‐temperature four‐wave mixing (FWM) photorefractive response was investigated in
undoped Bi12GeO20 (BGO) crystals. The FWM diffraction efficiency increases as the …

A reversible 16-fold increase in the long-wavelength (633-nm) photorefractive sensitivity of
bismuth silicon oxide is observed to occur when the crystal temperature is elevated to 300° …