Experimental Determination Features of Acousto-Optical Figure of Merit for Crystalline Materials |
| D.M. Vynnyk, A.T. Ratych, M.I. Kyryk, I.V. Yidak, A.S. Andrushchak
Lviv Polytechnic National University, Bandera Str. 12, 79013 Lviv, Ukraine |
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| The paper specifies the Dixon-Cohen method for the experimental determination of the acousto-optical figure of merit M2. In particular, the conditions are formulated when the Dixon-Cohen method application for M2 determination is possible without significant errors. Cases are considered when the condition of the ``weak field'' in the studied material is not satisfied, as well as when the transmission of the studied and reference materials is less than 100%. The error in determining the acousto-optical figure of merit M2 in the case of unenlightened test material, using CaWO4 and GaP crystals as an example, is estimated, and the limits of application of the ``weak field'' approximation in these two crystals are established. |
DOI:10.12693/APhysPolA.141.396 topics: figure of merit, Dixon-Cohen method, Bragg diffraction |