The main suggestions in practical applications of dynamic photorefractive holographic
recording for interferometry, processing of 2D pictures, operations with laser beams, and …

Aspheric wavefronts with spherical aberration are produced by optical systems using
spherical as well as aspherical surfaces. Aspheric surfaces are used in optical systems in …

BaTiO_3 single crystals were grown by the top-seeded solution growth technique in inert
atmospheres of nitrogen gas and of argon gas and in air. They were then annealed at 1200° …

We have built an adaptive system capable of detecting submicrometer defects in periodic
structures by using real-time holography in photorefractive crystals. We summarize the …

We present a defect-enhancement system capable of detecting submicrometer defects on
opaque periodic structures using real-time holography in photorefractive crystals. We detect …

This paper introduces an approach to cosmetic surface flaw identification that is essentially
invariant to changes in workpiece orientation and position while being efficient in the use of …

In a paper by Möbus et al. a method for defect enhancement by spatial self-filtering using
B12SiO20 (BSO) in the Fourier plane of an optical processor was presented. In periodic …

This paper introduces a refined inspection technology which combines neural networks and
range maps of object sub-skeleton pixel counts for identifying surface flaws. The proposed …

We have demonstrated an all-optical diagnostic system that enhances the observation of
defects in periodic structures. This real-time technique employs a spatial light modulator as a …

The contouring permits the detection of various phenomena perturbing a surface. It can deal
with local vibrating parts, cracks testing optical flatness, etc. In this paper, a contouring …