… crystals have been utilized for a variety of spectral filtering … either fixed gratings or dynamic
gratings maintained by … , the grating is spatially phase-shifted from the interference fringes by $…

… a strong interference signal for calibration purposes, for eg, using a fixed grating, or even an
… The time constant of the low-pass filters of the lock-in demodulators was set to 10 ms, with a …

… monitored using eccentric infrared photorefraction at 60 Hz … Using sine-wave gratings with
different spatial frequencies … display (LCD) positioned at a fixed distance of 50 cm from the …

… allows for the energy exchange between the interfering beams [… of demonstrating the filtering
features of our permanent grating, … for the fixed grating $ \Delta n = 1.08 \times {10^{ - 7}} $. …

… However, since the grating is fixed, the … , its spectral response is not periodic. There is a
great suppression about 29 dB of low frequency signals, and a bandpass frequency response is …

… In the static acceptance function, the top fixed n% of … , photorefractive tunable filters, polarizers,
biosensors, electro-optic switches, light modulators and etc [22,23]. Design of the grating-…

… -gel materials syn thesis, photorefractive effects, and optical … threshold relative to gratings
or thinfilm filters. Sarkar et al.… -selective filters which strongly absorb at a fixed wave length …

… -optic tunable filters (AOTFs) and photorefractive crystals for … form the grating eventually
relax unless they are fixed, so … For volume phase gratings, such as the photorefractive gratings …

… filtering properties of self-pumped volume reflection gratings, … Polarization gratings are formed
by the interference of two … ], but these use fixed, multiplexed gratings that are addressed by …

… for eliminating an interfering signal with a fixed frequency. When the filtering frequency is …
solution to traditional optical processes such as spectral filtering, as an alternative to nanoholes …