Journal article
Nonlinear diffraction from a virtual beam
We observe experimentally a novel type of nonlinear diffraction in the process of two-wave mixing on a nonlinear quadratic grating.We demonstrate that when the nonlinear grating is illuminated simultaneously by two noncollinear beams, a second-harmonic diffraction pattern is generated by a virtual beam propagating along the bisector of the two pump beams.
The observed iffraction phenomena is a purely nonlinear effect that has no analogue in linear diffraction
Language: | English |
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Year: | 2010 |
Pages: | 083902 |
ISSN: | 10797114 and 00319007 |
Types: | Journal article |
DOI: | 10.1103/PhysRevLett.104.083902 |
ORCIDs: | Bang, Ole |