Jaime Frejlich - Photorefractive Materials for Dynamic Optical Recording

8 Chapter 8Figure 8.1 Holographic setup: a laser beam is divided by the beamsplitter BS, ...Figure 8.2 Energy transfer between interfering = 633 nm beams in the two‐wav...Figure 8.3 Exponential gain coefficient as a function of the external incide...Figure 8.4 White light hologram erasure in :Fe: The erasure data ( ), measure...Figure 8.5 The graph shows the erasure of holograms in undoped BTO under 10–15...Figure 8.6 Hologram diffraction efficiency (arbitrary units) decay during nm...Figure 8.7 Diffraction efficiency ( in arbitrary units) during erasure of a h...Figure 8.8 Erasure of holograms in Pb‐doped BTO (same sample as in Fig. 8.6) r...Figure 8.9 Diffraction efficiency (recorded and measured using nm laser beam...Figure 8.10 Diffraction efficiency (au) as a function of time (seconds, in log...Figure 8.11 Hologram relaxation in the dark: exponential time as a function of...Figure 8.12 Photorefractive sensitivity S data ( ) as a function of the extern...Figure 8.13 Second harmonic evolution for KNSBN:Ti for the same sample and exp...Figure 8.14 Evolution of the accounting on self‐diffraction effects as de...Figure 8.15 Two‐wave mixing experiment in a photorefractive GaAs intrinsic cry...Figure 8.16 Second harmonic response curves for an undoped semi‐insulating GaA...Figure 8.17 Two‐wave mixing experiment in a photorefractive GaAs intrinsic cry...Figure 8.18 Two‐wave mixing experiment in a photorefractive GaAs intrinsic cry...Figure 8.19 Plot of the first (Eq. 8.76) and second (Eq. 8.78) harmonic te...Figure 8.20 Experimental setup for the generation and measurement of running h...Figure 8.21 Diffraction efficiency (left) and (right) as a function of Kv co...Figure 8.22 Diffraction efficiency (left) and (right) as a function of Kv co...Figure 8.23 Diffraction efficiency experimental data (spots) as a function o...Figure 8.24 experimental data (spots) as a function of for the same condit...Figure 8.25 Holographic photoelectromotive force current setup schema: a laser...Figure 8.26 (in arbitrary units) as a function of the vibration amplitude ...Figure 8.27 Computed (in arbitrary units) as a function of in rad for a fi...Figure 8.28 First harmonic component of the holographic current data (spots)...Figure 8.29 First harmonic component of the holographic current data (spots)...Figure 8.30 data (spots) plotted as a function of , for rad: Ce‐doped BTO...

9 Chapter 9Figure 9.1 Typical time evolution of the and signals (dots) at the initial...Figure 9.2 Computed initial versus applied electric field data (spots) in ....Figure 9.3 Output phase‐shift versus applied electric field ( ) data (circle...Figure 9.4 Fringe‐locked running hologram speed versus applied electric field ...Figure 9.5 Fringe‐locked running hologram experiment: frequency detuning (me...Figure 9.6 Fringe‐locked running hologram experiment on undoped crystal usin...Figure 9.7 and experimentally measured as function of on an undoped cr...Figure 9.8 3D plotting of experimentally measured and as function of fro...Figure 9.9 3D surface plotting of and as function of from Eq. 9.19 with ...Figure 9.10 Characterization of reduced :Fe (labeled LNB3): self‐stabilized h...Figure 9.11Figure 9.11 Characterization of reduced :Fe (labeled LNB5): self‐s...Figure 9.12 Characterization of oxidized :Fe (labeled LNB1): self‐stabilized ...