… Large photorefractive effects require suitable donors or traps … m = 1 the reduced fringe
contrast M is always smaller than … 76In InP:Fe, for example, the photorefractive coupling gain is …

… study of two-wave mixing interferometry in InP:Fe spatial … starts to decrease due to the
decrease of fringe visibility. Fig. 4(b) … was obtained by numerical analysis. The feasibility of the …

… contrast and helps visualizing and measuring intensity and phase information. The most
popular TDI systems are based on photorefractive … because they offer large versatility, allowing …

… Organic photorefractive materials, photochromic materials … ) provide higher contrast photonic
lattice structures in large size of … with magnetic nanoparticles such as Fe 3 O 4 would play a …

… a label-free contrast mechanism for an in-depth analysis of distinct … to study phase transitions,
to visualize ferroelectric (FE) … We thus expect a slightly larger coherent interaction length …

… We also perform a detailed study of Fe as a substitutional … [31] and Klein [32] discovered
the effect in GaAs and InP. … broad strokes the actual dynamics of the photorefractive effect. …

… of a long way. After a stressful day in the lab, it helps to know that I can temporarily escape
the “real … 113 4.14 A comparison of the interference fringe contrast between four experimental …

This work explored the use of high-repetition-rate femtosecond laser pulses for the direct
writing of optical waveguide-based devices in a sample of z-cut lithium niobate crystal. The …

… oxide (ITO) coated photo-refractive LC cell confined geometric … Furthermore, the HR-TEM
images shows fringe contrast, … was confirmed by FE-SEM image and elemental analysis of that …

… DC electric field is applied to the photorefractive crystal [10]. … large diffraction efficiency; this
is achieved with high contrast … {1}$, for a low contrast recording with large beam ratio $\beta \…