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Nonlinear Diffraction from a Virtual Beam Solomon M. Saltiel,1,2,* Dragomir N. Neshev,1
 

Summary: Nonlinear Diffraction from a Virtual Beam
Solomon M. Saltiel,1,2,* Dragomir N. Neshev,1
Wieslaw Krolikowski,1
Noa Voloch-Bloch,3
Ady Arie,3
Ole Bang,4
and Yuri S. Kivshar1
1
Nonlinear Physics Center and Laser Physics Center, Research School of Physics and Engineering, Australian National University,
Canberra ACT 0200, Australia
2
Department of Quantum Electronics, Faculty of Physics, Sofia University ``St. Kliment Ohridski,'' Bulgaria
3
School of Electrical Engineering, Faculty of Engineering, Tel-Aviv University, Tel-Aviv, Israel
4
DTU Fotonik, Department of Photonics Engineering, Technical University of Denmark, 2800 Kongens Lyngby, Denmark
(Received 4 December 2009; published 23 February 2010)
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

  

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

 

Collections: Engineering; Physics