Recording the volume holograms in LiTaO 3 with high intensity (up to 11 GW/cm 2)
nanosecond pulses was considered in this study. A very compact Nd: YVO 4 laser with the …

A theoretical analysis of the photorefractive sensitivity of Ti: PPLN ridge waveguides in
comparison with conventional Ti: PPLN channel waveguides is presented. In particular …

Lithium niobate (LiNbO 3) and lithium tantalate (LiTaO 3) crystals have gained increasing
interest during recent years because of their fascinating physical properties, such as …

Light pulses of 240 fs duration and 388-nm wavelength generate in lithium niobate crystals
transient absorption. The absorption changes are observed with delayed ultra-short pulses …

We develop a concept of charge transport for congruent and stoichiometric LiNbO 3 crystals,
both doped and nominally pure. The concept is based on well-established experimental …

Abstract crystals at continuous-wave illumination are reported. The investigation clearly
indicates an increase in the photorefraction amplitude Δn s (at saturation) with light intensity …

The temporal behavior of polarons generated by pulsed illumination of Li Nb O 3 crystals
doped with Fe, Fe+ Ti, and Cu is examined by detecting the light-induced absorption α li in a …

Reduced LiNbO3 crystals change their optical absorption under illumination with blue or
green pump light. We measure the dependence of this effect on pump intensity I at different …

We investigate the role of Fe in the electronic structure of ferroelectric LiNbO3 by density‐
functional theory calculations. We show that Fe2+ on the Li site (F e 2+ L i) features a …

Superlinear photovoltaic currents in LiNbO 3 are theoretically studied by using a two active
center model, with Fe 2+/Fe 3+ as primary center and Nb Li 4+/Nb Li 5+ as secondary …