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Nonlinear generation and manipulation of Tal Ellenbogen*, Noa Voloch-Bloch, Ayelet Ganany-Padowicz and Ady Arie*
 

Summary: Nonlinear generation and manipulation of
Airy beams
Tal Ellenbogen*, Noa Voloch-Bloch, Ayelet Ganany-Padowicz and Ady Arie*
Recently, the first experimental observation of a new class of
non-diffracting optical beams that freely accelerate in space
was reported1. These so-called Airy beams were shown to be
useful for optical micro-manipulation of small particles2
and
for the generation of curved plasma channels in air3
. To date,
these beams have been generated only by using linear diffrac-
tive elements. Here, we show a new way of generating Airy
beams by using three-wave mixing processes, which occur in
asymmetric nonlinear photonic crystals. We experimentally
generated a second-harmonic Airy beam and examined the
tuning properties of the nonlinear interaction and propagation
dynamics of the pump and second-harmonic output beams.
This nonlinear generation process enables Airy beams to be
obtained at new wavelengths, and opens up new possibilities
for all-optical switching and manipulation of Airy beams.

  

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

 

Collections: Engineering