Prof. Nikolai A. Kostrov Profile

Prof. Nikolai A. Kostrov

Senior Scientist

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Publications (5)

SPIE Journal Paper | 1 May 2004

Method of characterization of effective shrinkage in reflection holograms

Pavel Trochtchanovitch, Nikolai Kostrov, Emin Goulanian, Faouzi Zerrouk, Eugene Pen, Vladimir Shelkovnikov

OE, Vol. 43, Issue 05, (May 2004) https://doi.org/10.1117/12.10.1117/1.1666743

KEYWORDS: Holograms, Refractive index, Volume holography, Reflection, Photopolymers, Holographic materials, Holography, Optical engineering, Refraction, Diffraction

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Proceedings Article | 29 July 2002 Paper

Method for research of dynamics of the spectral characteristics of reflection holograms in photopolymer materials

Eugene Pen, Vladimir Shelkovnikov, Emin Goulanian, Nikolai Kostrov, V. Labusov

Proceedings Volume 4900, (2002) https://doi.org/10.1117/12.484487

KEYWORDS: Holograms, Photopolymers, Holographic materials, Spectrophotometry, Diffraction, Polymers, Transmittance, Absorption, Photopolymerization, Image processing

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Proceedings Article | 25 March 1999 Paper

Composite holographic screens for the stereoscopic or multiview color image display

Nickolay Evtikhiev, Anatoly Axelrod, Vladimir Bobrinev, Nikolai Kostrov, Gennady Koshevarov, Vladimir Markin, Leonid Melnikov, Alexey Oleinikov, Oleg Radominov, Jung-Young Son

Proceedings Volume 3637, (1999) https://doi.org/10.1117/12.343780

KEYWORDS: Diffusers, Holography, Composites, Projection systems, 3D image reconstruction, Stereoscopic displays, Superposition, Holograms, Color reproduction, Visible radiation

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The transmission type holographic screen is a special kind of scatterer, which is used to concentrate the light from the projected image into small size spot (viewing zone). As a result, different images can be delivered to each observer's eyes and it is possible to display the stereoscopic images. The most serious problem related with the holographic screen is its high dispersion and aberrations which cause the viewing zone distortions and poor color reproduction in the displayed image, especially in the screen corners. Both of the above mentioned drawbacks become more prominent when the screen size becomes larger. To compensate the screen dispersion, a diffuser in the form of a long narrow stripe directed to the reference beam axis is used for an object. The length and position of the diffuser are calculated to make the reconstructed images of it for all wavelengths of the white light projector to be superposed in the viewing zone. To solve the aberrations problem, a big size screen was composed by mosaicking many sub-screens which were recorded individually in the specially optimized setup. For example, when the sub- screen is recorded for the edge part of the screen, the diffuser was tilted different direction to provide proper superposition of the reconstructed diffuser images. For each sub-screen, the diffuser is tilted such that it is in nearly the same plane with the reference beam axis. The sub-screens are recorded on the holographic photoplates PFG-01 (Russia) with an optical set-up optimized for each sub-screen by adjusting the diffuser position and its tilt angle. All necessary parameters are calculated by considering the light beam path for different wavelengths in the visible spectrum. The size of each sub-screen is 40 X 30 cm². Eight sub- screens are mosaicked to obtain a composite holographic screen with size 80 X 120 cm². The screens have been used to display the full color stereoscopic images from slide projectors. The distances between the projector and the composite screen, and the screen and a viewer are set to 4 m and 3.5 m, respectively.

Proceedings Article | 10 April 1997 Paper

Holographic transmission-type screens for projection of stereoscopic or multiview color images

Nickolay Evtikhiev, Vladimir Bobrinev, Nikolai Kostrov, Oleg Radominov, Serguei Shestak, Jung-Young Son

Proceedings Volume 3011, (1997) https://doi.org/10.1117/12.271348

KEYWORDS: Holography, Diffusers, Holograms, Light scattering, Projection systems, Optical components, Eye, Reflection, Diffraction, Beam splitters

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Proceedings Article | 12 April 1995 Paper

Information reduction in the 3D object Fourier hologram

Jung-Young Son, Hyung-Wook Jeon, Yong-Jin Choi, Sang Sam Choi, Nikolai Kostrov

Proceedings Volume 2406, (1995) https://doi.org/10.1117/12.206219

KEYWORDS: Holograms, 3D image reconstruction, Composites, Diffraction, Fourier transforms, Image resolution, Holography, Zirconium, Lithium, Electronics

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