Photorefractive materials combine photoconductive and electro-optic properties: light affects
their electrical conductivity; their optical properties (refractive index, etc.) are affected by …

We propose a new novelty optical filter that uses a bacteriorhodopsin film. This filter is based
on the time-dependent nonlinear diffraction efficiency of real-time holograms recorded in the …

A new kind of optical novelty filtering by an incoherent light system is presented that is based
on a special property of dynamic complementary suppression modulated transmission in …

A photorefractive-based novelty filter microscope can be used for real-time phase
measurement of phase changes, introduced by moving objects or microorganisms, from 0 to …

We present experimental results describing the influence of optical bias on the transient
characteristics of gratings formed in photorefractive BSO. A transient peak is evident, and the …

We investigate the enhancement of the diffraction efficiency of dynamic gratings recorded in
a bismuth silicon oxide crystal at large modulation by the moving-grating technique. The …

Feedforward networks having a one-to-one correspondence between input and output units
are readily trained using backpropagation to perform auto-associative mappings. A novelty …

Optical bias has been applied in the formation of moving gratings in bismuth silicon oxide at
large fringe modulations. It is shown that optical bias is an effective method of overcoming …

The quality of the novelty filter image is investigated at different intensities of the incident
blue and yellow beams irradiating a bacteriorhodopsin (bR) film. The relationship between …

When the parameters of a bacteriorhodopsin (bR) film are fixed, the quality of the output
image of an optical novelty filter depends on the velocity and the size of the image of the …