Generation of the second-harmonic Bessel beams via nonlinear Bragg diffraction

Details Generation of the second-harmonic Bessel beams via nonlinear Bragg diffraction Generation of the second-harmonic Bessel beams via nonlinear Bragg diffraction

2007-08-25

arxiv.org/abs/0708.3417v1

Nonlinear Sciences

Pattern Formation and Solitons

4 pages, 5 figures. submitted

Scientific paper

10.1103/PhysRevLett.100.103902

We generate conical second-harmonic radiation by transverse excitation of a
two-dimensional annular periodically-poled nonlinear photonic structure with a
fundamental Gaussian beam. We show that these conical waves are the far-field
images of the Bessel beams generated in a crystal by parametric frequency
conversion assisted by nonlinear Bragg diffraction.

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