Spectral transmission of a wide-aperture bragg acoustooptical paratellurite filter
Autor: | A. S. Lugina, A. V. Nadenenko, V. B. Voloshinov, Yu. A. Sannikov, V. K. Pavlenko, Nikolai S. Kazak |
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Rok vydání: | 1990 |
Předmět: | |
Zdroj: | Journal of Applied Spectroscopy. 52:209-213 |
ISSN: | 1573-8647 0021-9037 |
Popis: | In this paper we study the spectral characteristics of a wide-aperture noncollinear filter based on a paratellurite crystal and the dependence of the transmission linewidth on the size of the angular aperture. The vector diagram of the AO interaction is shown in Fig. la, where Ke and Ko are the wave vectors of the incident and diffracted light. The wave vector of the shifted US wave K= makes an angle a with the [ii0] direction. The light and sound interact in the (ii0) plane of the TeO 2 crystal. It is well known that for such an interaction geometry the relation between the wavelength of the diffracted light ~ and the acoustic frequency f and the angle of incidence of the radiation on the US lattice 0 is given by |
Databáze: | OpenAIRE |
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