Zobrazeno 1 - 10
of 10
pro vyhledávání: '"A R Sametov"'
Publikováno v:
Interexpo GEO-Siberia. 8:9-16
A technique for quickly finding the optimal time of liquid etching the amplitude masks of two-dimensional Dammann gratings, the structure of which is synthesized by direct laser writing in a polar coordinate system, is studied theoretically and exper
Autor:
Roman I. Kuts, Anatoly I. Malyshev, Ruslan K. Nasyrov, Dmitry A. Belousov, Victor P. Korolkov, Alaxander R. Sametov, S. L. Mikerin
Publikováno v:
Holography, Diffractive Optics, and Applications IX.
Computer-generated holograms are widely used in interferometry for aspherical mirror testing. However, CGH has relatively low numerical aperture, which is limited both by the spatial resolution of the manufacturing process and by the need to do the d
Autor:
Alexander G. Poleshchuk, Andrey G. Sedukhin, A. R. Sametov, Victor P. Korolkov, R. V. Shimanskii
Publikováno v:
Optoelectronics, Instrumentation and Data Processing. 51:287-292
A method for direct laser thermochemical writing of gray-scale microimages in thin chromium films is developed and studied. The method includes exposing a chromium film with a focused laser beam with variable power intensity and developing it in a se
Publikováno v:
Optoelectronics, Instrumentation and Data Processing. 49:72-80
This paper reports on theoretical and experimental studies of a new class of zero-order diffractive elements — diffractive light attenuators with variable transmission. Results of tests of circular diffractive attenuators for wavelengths of 532 and
Publikováno v:
Optoelectronics, Instrumentation and Data Processing. 48:87-92
The use of a diffractive optical element (DOE) in the optical scheme of a laser illuminator of a shooting simulator exposing the target is studied. It is proposed to use the DOE in the optical projection system to form a laser beam with a special int
Autor:
Vadim P. Veiko, A R Sametov, E. A. Shakhno, V I Korol'kov, Alexander G. Poleshchuk, M. V. Yarchuk
Publikováno v:
Quantum Electronics. 41:631-636
The thermochemical method for recording data, which is based on local laser oxidation of a thin metal film with subsequent etching of the unirradiated region, is an alternative to laser photolithography and direct laser removal of the film material.
Autor:
P. M. Dutov, Yuri V. Chugui, V. G. Nikitin, A. I. Kokarev, M. F. Stupak, A. R. Sametov, V. M. Vedernikov, V. V. Chukanov, I. G. Palchikova, Boris A. Knyazev, V. P. Kir’yanov
Publikováno v:
Optoelectronics, Instrumentation and Data Processing. 46:365-375
The limits of applicability of geometrical optical methods of calculating diffractive optical elements for terahertz radiation are determined. Use of the method of hot pressing in vacuum chambers to produce polymer transmissive diffractive elements f
Publikováno v:
SPIE Proceedings.
A new approach for the optimization of diffractive microlenses fabrication is presented. The problem is that fabrication process brings errors in profile formation. These errors decrease diffractive efficiency and wavefront quality. However, microlen
Publikováno v:
SPIE Proceedings.
Profilometry gives good possibility to evaluate a quality of diffractive optics. However, distorted representation of diffractive zone boundaries inherent to majority of profilometric devices does not allow correct restoring the diffraction efficienc
Publikováno v:
Soviet Journal of Quantum Electronics. 10:1171-1173
Spatial self-locking of partially degenerate transverse TEMm0q modes was observed in an He–Ne laser (0.63 μ) with a confocal resonator. Self-locking was achieved as a result of an increase in the diffraction coupling between the modes found when a