Origin of the lobe structure in photorefractive beam fanning
- 1 August 1995
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 52 (2) , 1791-1794
- https://doi.org/10.1103/physreva.52.1791
Abstract
We show that the three enigmatic lobes or petals observed in the far-field fanning pattern of photorefractive crystals are correctly predicted by considering the piezoelectric and photoelastic contributions of crystal deformations to the photorefractive nonlinearity.
Keywords
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