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Nonlinear computer-generated holograms Asia Shapira,1,

Summary: Nonlinear computer-generated holograms
Asia Shapira,1,
* Irit Juwiler,2
and Ady Arie1
Department of Physical Electronics, School of Electrical Engineering, Tel Aviv University, Tel Aviv 69978, Israel
Department of Electrical and Electronics Engineering, Sami Shamoon College of Engineering, Ashdod 77245, Israel
*Corresponding author: asiasapi@post.tau.ac.il
Received May 31, 2011; accepted June 28, 2011;
posted June 30, 2011 (Doc. ID 148444); published August 1, 2011
We propose a novel technique for arbitrary wavefront shaping in quadratic nonlinear crystals by introducing the
concept of computer-generated holograms (CGHs) into the nonlinear optical regime. We demonstrate the method
experimentally showing a conversion of a fundamental Gaussian beam pump light into the first three Hermite­
Gaussian beams at the second harmonic in a stoichiometric lithium tantalate nonlinear crystal, and we characterize
its efficiency dependence on the fundamental power and the crystal temperature. Nonlinear CGHs open new
possibilities in the fields of nonlinear beam shaping, mode conversion, and beam steering. © 2011 Optical Society
of America
OCIS codes: 190.2620, 090.2890.
Holography is a method for storing and reconstructing


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


Collections: Engineering