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Switching the acceleration direction of Airy beams by a nonlinear optical process

Summary: Switching the acceleration direction of Airy beams
by a nonlinear optical process
Ido Dolev,1,
* Tal Ellenbogen,1,2
and Ady Arie1
Department of Physical Electronics, Fleischman Faculty of Engineering, Tel-Aviv University, Tel-Aviv 69978, Israel
Currently with the School of Engineering and Applied Sciences, Harvard University,
Cambridge, Massachusetts 02138, USA
*Corresponding author: idodolev@post.tau.ac.il
Received February 2, 2010; revised March 19, 2010; accepted April 5, 2010;
posted April 9, 2010 (Doc. ID 123717); published May 5, 2010
We present experimental control of the acceleration direction of Airy beams generated by nonlinear three-
wave mixing processes in an asymmetrically poled nonlinear photonic crystal. Changing the crystal tem-
perature enabled us to switch the phase matching condition between second-harmonic generation and
difference-frequency generation in the same nonlinear crystal and thereby to change the acceleration direc-
tion and the wavelength of the output Airy beam. All-optical control of the acceleration direction can be also
realized at a fixed crystal temperature by using a tunable pump source and selecting the proper crystal pol-
ing period. 2010 Optical Society of America


Source: Arie, Ady - Department of Electrical Engineering-Physical Electronics, Tel Aviv University


Collections: Engineering