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Quasi-phase-matching
using quasi-crystallographic methods
Alon Bahabad, Noa Voloch
The main purpose
of this research is to find a framework in which the most general
problem of
phase-matching can be solved: designing a nonlinear photonic crystal
that is able
to phase-match a pre-defined arbitrary set of nonlinear processes. For this purpose we use a known method from
the realm of quasi-crystallography known as the dual grid method. In
this
method a quasicrystal with a desired spectral content can be built
through a
transformation of a special dual structure made out of grids that
contain the
topological information for the desired structure. Shown below is a
nonlinear
photonic crystal made to create second harmonic generation of three
different
wavelengths.
R. Lifshitz, A. Arie and A. Bahabad, “Photonic
quasicrystals for general purpose nonlinear optical frequency
conversion”, Physical Review Letters
95 133901 (2005). (pdf
File)
A. Bahabad, N. Voloch, A. Arie, and R. Lifshitz,
"Experimental confirmation of the general solution to the multiple
phase matching problem", J. Opt. Soc. Am. B 24, 1916-1921
(2007) (pdf file)
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