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Unveiling Quasiperiodicity through Nonlinear Wave Mixing in Periodic Media Alon Bahabad,1
 

Summary: Unveiling Quasiperiodicity through Nonlinear Wave Mixing in Periodic Media
Alon Bahabad,1
Noa Voloch,2
and Ady Arie1,*
1
School of Electrical Engineering, Wolfson Faculty of Engineering, Tel-Aviv University, Tel-Aviv 69978, Israel
2
School of Physics and Astronomy, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel-Aviv University,
Tel-Aviv 69978, Israel
Ariel Bruner and David Eger
Electro-Optics Division, Soreq NRC, Yavne 81800, Israel
(Received 21 January 2007; published 14 May 2007)
Quasiperiodicity is the concept of order without translation symmetry. The discovery of quasiperiodic
order in natural materials transformed the way scientists examine and define ordered structure. We show
and verify experimentally that quasiperiodicity can be observed by scattering processes from a periodic
structure, provided the interaction area is of finite width. This is made through a momentum conservation
condition, physically realizing a geometrical method used to model quasiperiodic structures by projecting
a periodic structure of a higher dimension.
DOI: 10.1103/PhysRevLett.98.205501 PACS numbers: 61.44.Br, 42.65.Ky, 42.70.Mp, 61.10.i
The outcome of scattering processes by periodic media

  

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

 

Collections: Engineering