Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Vadim V. Cherkashin"'
Autor:
Vadim V. Cherkashin, K. A. Ivanova, Alexander G. Poleshchuk, V. I. Trunov, K. V. Gubin, Andrey G. Sedukhin
Publikováno v:
Optoelectronics, Instrumentation and Data Processing. 54:19-25
Results of an experimental study of the density distribution in a small-size (1–2 mm in diameter) supersonic gas jet in vacuum are reported. The measurements are performed by the developed Shack–Hartmann wavefront sensor, which consists of a micr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2a9b24f278ad312cbc281c1c1070c004
https://doi.org/10.3103/s8756699018010041
https://doi.org/10.3103/s8756699018010041
Publikováno v:
Optoelectronics, Instrumentation and Data Processing. 53:255-263
This paper presents a method of improving the accuracy of a circular laser system in fabrication of large-diameter diffractive optical elements by means of a polar coordinate system and the results of their use. An algorithm for correcting positionin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1d8e1f94eba85d72ceaf8e601d77eff8
https://doi.org/10.3103/s8756699017030098
https://doi.org/10.3103/s8756699017030098
Publikováno v:
Optoelectronics, Instrumentation and Data Processing. 53:123-130
A method is developed to ensure precise alignment of the origin of a polar coordinate system in which the laser beam position is defined in writing diffractive optical elements with the optical workpiece rotation axis. This method is used to improve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::086f3617405677f59fd456d8ef9a9c53
https://doi.org/10.3103/s8756699017020030
https://doi.org/10.3103/s8756699017020030
Publikováno v:
Holography: Advances and Modern Trends VI.
The development of specialized non-destructive methods for monitoring of microstructured optical elements is necessary for introduction of diffractive, micro-optical and conformal optical elements into production. However, a wide variety of such elem
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d4c72886f1b06f00da5c9cb38e21689b
https://doi.org/10.1117/12.2521140
https://doi.org/10.1117/12.2521140
Autor:
L. N. Lavrinova, V. P. Lukin, Victor P. Korolkov, Alexander G. Poleshchuk, N. N. Botygina, Ruslan K. Nasyrov, Vadim V. Cherkashin, O. N. Emaleev
Publikováno v:
Optoelectronics, Instrumentation and Data Processing. 45:161-170
A Shack-Hartmann type wavefront sensor designed on the basis of a low-aperture off-axis diffraction lens array is described. Tests experiments showed that the sensor is capable of measuring wavefront slopes at array subapertures of size 640×640 µm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0b070e5cdc1d4c178be84f49db7b8c5c
https://doi.org/10.3103/s8756699009020101
https://doi.org/10.3103/s8756699009020101
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::24a570b31212606c956fb04f9c3fd1ac
https://pubmed.ncbi.nlm.nih.gov/18305745
https://pubmed.ncbi.nlm.nih.gov/18305745
Testing optical surfaces by high-precision diffractive null lenses with integrated reference surface
Publikováno v:
SPIE Proceedings.
Fizeau interferometers with an additional diffractive optical element are frequently used for measuring spherical and aspherical surfaces. We present a new design, were the Fizeau principle is now perfectly fulfilled, by generating reference and meas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5f817192fcb3a93437a3a1dfc1ee6987
https://doi.org/10.1117/12.500295
https://doi.org/10.1117/12.500295
Publikováno v:
Diffractive Optics and Micro-Optics.
A method for certifying the direct writing process for computer generated holograms is offered and experimentally validated. This method effectively reveals both random errors and slow drift during writing process. The techniques are demonstrated wit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e26c6b51125367ab2dc6bae152109625
https://doi.org/10.1364/domo.2002.dmd6
https://doi.org/10.1364/domo.2002.dmd6
Autor:
Johann Westhauser, Chuck Wu, Thomas Schoder, Anatoly I. Malyshev, Alexander G. Poleshchuk, Victor P. Korolkov, Hans J. Tiziani, Vadim V. Cherkashin, Christof Pruss
Publikováno v:
SPIE Proceedings.
In the last years the application of gray-scale masks (GSM) for diffractive optics manufacturing attracts attention because of cost-effective possibility to produce a lot of diffractive elements on hard and heat-resistant thermally stable substrates.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::53219b6d641dd449a9c02116d0dbd24a
https://doi.org/10.1117/12.448026
https://doi.org/10.1117/12.448026
Autor:
Vadim V. Cherkashin, Ruslan V. Shimansky, Victor P. Korolkov, Andrey A. Kharissov, Alexander G. Poleshchuk, Dmitry Denk
Publikováno v:
SPIE Proceedings.
The photolithography using gray-scale masks (GSM) with multilevel transmittance is now one of promising ways for manufacturing of high efficiency diffractive optical elements and microoptics. Such masks can be most effectively fabricated by laser or
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c96e634bb494b1c4937e32d8cabcfb87
https://doi.org/10.1117/12.448047
https://doi.org/10.1117/12.448047