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On‐axis shaping of second‐harmonic beams
Author(s) -
TrajtenbergMills Sivan,
Juwiler Irit,
Arie Ady
Publication year - 2015
Publication title -
laser and photonics reviews
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.778
H-Index - 116
eISSN - 1863-8899
pISSN - 1863-8880
DOI - 10.1002/lpor.201500154
Subject(s) - holography , optics , beam (structure) , harmonic , fourier transform , physics , hermite polynomials , phase (matter) , amplitude , nonlinear photonic crystal , nonlinear system , second harmonic generation , nonlinear optics , acoustics , laser , quantum mechanics
We report complete spatial shaping (both phase and amplitude) of the second‐harmonic beam generated in a nonlinear photonic crystal. Using a collinear second‐order process in a nonlinear computer generated hologram imprinted on the crystal, the desired beam is generated on‐axis and in the near field. This enables compact and efficient one‐dimensional beam shaping in comparison to previously demonstrated off‐axis Fourier holograms. We experimentally demonstrate the second‐harmonic generation of high‐order Hermite–Gauss, top hats and arbitrary skyline‐shaped beams.