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Generation of Second-Harmonic Bessel Beams by Transverse Phase-Matching in Annular Periodically Poled Structures
 

Summary: Generation of Second-Harmonic Bessel Beams by Transverse Phase-Matching
in Annular Periodically Poled Structures
Solomon M. SALTIEL1;2
, Dragomir N. NESHEV1
, Robert FISCHER1
,
Wieslaw KROLIKOWSKI1
, Ady ARIE3
, and Yuri S. KIVSHAR1
1
Nonlinear Physics Center and Laser Physics Center, Center for Ultra-high bandwidth Devices for Optical Systems (CUDOS),
Research School of Physical Sciences and Engineering, Australian National University, Canberra ACT 0200, Australia
2
Physics Department, Sofia University ``St. Kl. Ohridski'', Sofia-1164, Bulgaria
3
School of Electrical Engineering, Faculty of Engineering, Tel-Aviv University, Ramat Aviv, Tel-Aviv, Israel
(Received January 26, 2008; accepted April 2, 2008; published online August 22, 2008)
We demonstrate experimentally the generation of second-harmonic conical waves via parametric frequency doubling in a two-
dimensional annular periodically poled nonlinear photonic structure fabricated in a stoichiometric lithium tantalate crystal.
We apply the concept of nonlinear Bragg diffraction for explaining this effect, and show theoretically that in low-symmetry

  

Source: Arie, Ady - Department of Electrical Engineering-Physical Electronics, Tel Aviv University
Australian National University, Research School of Physical Sciences and Engineering, Nonlinear Physics Centre
Saltiel, Solomon - Faculty of Physics, University of Sofia

 

Collections: Engineering; Physics