Spectropolarimeter of ground-based accompanying for the space experiment «Planetary monitoring»
|1Vidmachenko, AP, 1Ivanov, Yu.S, 1Morozhenko, OV, 1Nevodovsky, EP, 1Syniavskyi, II, 1Sosonkin, MG |
1Main Astronomical Observatory of the National Academy of Sciences of Ukraine, Kyiv, Ukraine
|Kosm. nauka tehnol. 2007, 13 ;(1):063-070|
|Publication Language: Russian|
It is planned to manufacture the spectropolarimeter to measure the linear polarization of radiation from celestial objects in a spectral region of 350 to 930 nm. The polarimeter will satisfy the following requirements: it will be equipped with panoramic light-receiver; the number of elements and their thickness will be minimized; each optical element of polarimeter should be designed to realize the a maximal number of functions (power, polarimetry, correction) simultaneously. It is proposed to exclude the dispersive elements from the polarimeter construction. Instead of these elements, the Wollaston prism of unique construction will be used. It will consist of two wedges with spherical surfaces assembled at the optical contact, and the curvature centers of the wedges will be displaced. The Wollaston prism will be utilized as the splitting-beam polarization prism (just as in ordinary polarimeters) as well. So, the functions of image constructions, of selection by wavelengths, and of polarization analysis will be concentrated in one ordinary element. This will allow us to increase the device light transparency by three to ten times.
|Keywords: correction, polarization, spectropolarimeter|
1. Colourless optical glass. Technical conditions: GOST 3514-76 from 6th October 1976 [in Russian].
2. Lebedeva V. V. Technique of optical spectroscopy, 354 p. (Moscow State University, Moscow, 1977) [in Russian].
3. Moroz V. I. Physics of Mars Planet, 412 p. (Nauka, Moscow, 1978) [in Russian].
4. Peisakhson I. V. Optics of Spectral Devices, 2nd revised and enlarged edition, 312 p. (Mashinostroenie, Leningrad, 1975) [in Russian].
5. Slyusarev G. G. Methods of optical system design, 672 p. (Mashinostroenie, Leningrad, 1969) [in Russian].
6. Slyusarev G. G. Design of optical systems, 639 p. (Mashinostroenie, Leningrad, 1975) [in Russian].
7. Clancy R. T., Grossman, A. W., Wolff M. J., et. al. Water vapor saturation at low altitudes around Mars aphelion: a key to Mars climate? Icarus, 122 (1), 36—62 (1996).
8. Gehrels T. (Ed.) Jupiter, 612 p. (Univ. Press, Tucson, Arizona, 1983).
9. Gehrels T., Mattheus M. S. Saturn, 686 p. (Univ. Press, Tucson, Arizona, 1984).
10. Hansel S. A., Wells W. K., Hunten D. M. Optical detection of lightnings on Venus. Icarus, 117 (2), 345—351 (1995).
11. Hunten D. M., Colin L., Donahue T. M., et. al. Venus, 863 p. (Univ. of Arizona Press, Tucson, Arizona, 1983).
12. Kieffer H. H. Mars, 1494 p. (Univ. Press, Tucson, Arizona, 1992).
13. SCHOTT™. Katalog Optisches Glas "SCHOTT-2000", 723 p. (2000).