Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Evgeny G. Churin"'
Autor:
Sergei A. Kokarev, Andrei A. Kharissov, Vadim V. Cherkashin, Valerii P. Kiryanov, Alexander G. Verhoglyad, Aleksei V. Kiryanov, Evgeny G. Churin, Alexander G. Poleshchuk, Voldemar Petrovich Koronkevich, Victor P. Korolkov
Publikováno v:
Applied optics. 38(8)
A precision laser pattern generator for writing arbitrary diffractive elements was developed as an alternative to Cartesian coordinate laser/electron-beam writers. This system allows for the fabrication of concentric continuous-relief and arbitrary b
Autor:
Evgeny G. Churin, Polina Bayvel, Fedor N. Timofeev, John E. Midwinter, Vladimir B. Smirnitskii
Publikováno v:
Applied optics. 36(30)
The concave grating stationary anastigmatic spectrograph has been modified into a novel retroreflective scheme by introducing a convex mirror concentric to the intermediate image. This provides double dispersion, diffraction-limited imaging of a long
Publikováno v:
Diffractive Optics and Micro-Optics.
Autor:
Vadim V. Cherkashin, Alexander G. Poleshchuk, James H. Burge, Voldemar Petrovich Koronkevich, Evgeny G. Churin, Andrey A. Kharissov, Victor P. Korolkov
Publikováno v:
SPIE Proceedings.
Computer-generated holograms are limited by conventional lithographic fabrication capabilities which rely on accurate deposition, exposure, and developing of photosensitive chemicals. We present an alternate fabrication technology that uses a focused
Autor:
Alexander G. Poleshchuk, Voldemar Petrovich Koronkevich, Victor P. Korolkov, Valery P. Kiryanov, Andrey A. Kharissov, Evgeny G. Churin, Vadim V. Cherkashin
Publikováno v:
SPIE Proceedings.
A new circular laser writing system for fabrication of computer generated holograms is described. The results of diffractive element synthesis without photoresists usage are presented.
Autor:
Voldemar Petrovich Koronkevich, Erwin Jaeger, Theo T. Tschudi, Jens Hossfeld, Evgeny G. Churin
Publikováno v:
SPIE Proceedings.
An optical beam shaping system based on a single Computer Generated Hologram has been realized. It focuses a laser beam with Gaussian profile to a square area with uniform intensity. In order to achieve a rectangular focal spot which is as close as p
Autor:
Galina A. Lenkova, Evgeny G. Churin
Publikováno v:
SPIE Proceedings.
The hybrid micro-objective lens with the kinoform corrector has been developed and fabricated. Kinoform corrector is made by the photorastering technology. The numerical aperture of the micro-objective is 0.6 and 0.7; the focal length is 9.1 and 5.9
Autor:
Evgeny G. Churin
Publikováno v:
Optics Letters. 24:620
A new method that reshapes a Gaussian laser beam into a polygon of diffraction-limited size with a flat or a pyramidal top is presented. The technique is based on the use of computer-generated holograms with phase dislocations (singularities).
Publikováno v:
Soviet Journal of Quantum Electronics. 15:494-497
A technology was developed for synthesizing optical diffraction elements utilizing thin chromium films. It consists in directing a focused laser beam onto a substrate rotating at a constant angular velocity and coated with a thin chromium film, and s
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