Zobrazeno 1 - 10
of 49
pro vyhledávání: '"I. M. Gulis"'
Autor:
I. M. Gulis, A. G. Kupreyeu
Publikováno v:
Pribory i Metody Izmerenij, Vol 9, Iss 4, Pp 296-305 (2018)
Registration of non-stationary processes, namely snapshot hyperspectral imaging that allows to capture data cube I(x,y,λ) in one measurement act, is of interest for imaging spectroscopy.The purpose of the work is increasing of spectral resolution of
Externí odkaz:
https://doaj.org/article/29818367020e453cb6de3ec756c37427
Autor:
I. M. Gulis, A. G. Kupreyeu
Publikováno v:
Pribory i Metody Izmerenij, Vol 7, Iss 3, Pp 262-270 (2016)
Instruments for spectral filtration of images are an important element of the systems used in remote sensing, medical diagnostics, in-process measurements. The aim of this study is analysis of the functional features and characteristics of the propos
Externí odkaz:
https://doaj.org/article/09d9b7133ce84cada2b7bff6ff78bd83
Autor:
I. M. Gulis, A. G. Kupreyeu
Publikováno v:
Pribory i Metody Izmerenij, Vol 7, Iss 1, Pp 58-66 (2016)
The increase of angular dispersion and slit resolution limit of grating spectrometers by means of variation of grating parameters is limited by its period and allowable order of diffraction. The special solutions (echelle, holographic, immersion grat
Externí odkaz:
https://doaj.org/article/0d433cf568ca476cab4d1cb385259130
Publikováno v:
Pribory i Metody Izmerenij, Vol 0, Iss 1, Pp 37-44 (2015)
Schemes of high-aperture and compact optical spectrometers and giperspectrometer with minimized aberrations are presented. In the first scheme usage of inclined plane-parallel plate allows decreasing of astigmatism. In the second scheme off-axis aber
Externí odkaz:
https://doaj.org/article/0f4b9a72acbf4319954e97ad806080fd
Publikováno v:
Pribory i Metody Izmerenij, Vol 0, Iss 1, Pp 92-96 (2015)
The possibility of use a CANON 1000D digital camera for multizone photography is demonstrated. It is found that a dynamic range of the recorded light intensities is varied from 260 to 3650 quantization levels of the ADC. Linearity of the light-sensit
Externí odkaz:
https://doaj.org/article/3e09123e0b7c4b22b3b0783b0d10ddca
Publikováno v:
Pribory i Metody Izmerenij, Vol 0, Iss 1, Pp 32-37 (2015)
The optical design of the apparatus for generation of programmable-spectrum light is proposed. Both wide-band (hundreds of nanometer) and narrow-band (units of nanometer) spectral patterns may be generated by means of the proposed device. The spectra
Externí odkaz:
https://doaj.org/article/fc12342ee94a4fb18c1574bef4239f89
Autor:
M. P. Samtsov, K. F. Ermalitskaia, I. M. Gulis, A. A. Kirsanov, E. S. Voropay, D. S. Tarasau, A. E. Radko, A. P. Zajogin, K. A. Shevchenko
Publikováno v:
Journal of Applied Spectroscopy. 88:603-609
A laser atomic emission multichannel spectrometer (LAEMS) with an achromatic optical configuration is developed for research and educational purposes. The new spectrometer fits all the requirements for equipment for laser atomic emission spectroscopy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9e60b265075982c1f26b4c82c6cb6c64
https://doi.org/10.1007/s10812-021-01215-2
https://doi.org/10.1007/s10812-021-01215-2
Autor:
I. M. Gulis, A. G. Kupreyeu
Publikováno v:
Journal of Applied Spectroscopy. 86:896-899
We have developed a basic approach and a design for snapshot recording of multispectral information, based on a dispersive polychromator with mirror objectives. By means of numerical modeling, we have shown that the halfwidth of the blur spots for 11
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::39a64b61585d2fae2242aafc82df40dd
https://doi.org/10.1007/s10812-019-00912-3
https://doi.org/10.1007/s10812-019-00912-3
Autor:
I. M. Gulis, A. G. Kupreyeu
Publikováno v:
Journal of Applied Spectroscopy. 82:816-823
We propose a method for retrieval of an optical line spectrum limited to a narrow spectral range using a short interferogram, based on the use of a multi-stage genetic algorithm. We have run simulations for the example of spectra with lines having wa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::263b0b2b6248a6e1fd81258673bb2bf5
https://doi.org/10.1007/s10812-015-0185-x
https://doi.org/10.1007/s10812-015-0185-x
Publikováno v:
Journal of Applied Spectroscopy. 75:150-155
We have numerically modeled astigmatism correction for a large-aperture mirror spectrometer using a tilted plane-parallel plate. The results suggest a decrease in the height of the astigmatic focal spot by a factor of 2–7 over the entire image fiel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5c1fb52ee8a5c9292a88203b0ebfd261
https://doi.org/10.1007/s10812-008-9000-2
https://doi.org/10.1007/s10812-008-9000-2