Generation of second-harmonic conical waves via nonlinear Bragg diffraction
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Saltiel, Solomon; Neshev, Dragomir; Fischer, Robert; Arie, Ady; Krolikowski, Wieslaw; Kivshar, Yuri
Description
We report on the observation of second-harmonic conical waves generated in a novel geometry of the transverse excitation of an annular periodically poled nonlinear photonic structure by a fundamental Gaussian beam. We show that the conical beams are formed as a result of the higher-order nonlinear Bragg diffraction involving two parametric processes in which an ordinary fundamental wave is converted simultaneously into ordinary and extraordinary polarized second harmonics.
Collections | ANU Research Publications |
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Date published: | 2008-03-12 |
Type: | Journal article |
URI: | http://hdl.handle.net/10440/905 http://digitalcollections.anu.edu.au/handle/10440/905 |
Source: | Physical Review Letters |
DOI: | 10.1103/PhysRevLett.100.103902 |
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