Title :
Landau-Zener tunnelling dynamics in hexagonal photonic lattices
Author :
Terhalle, B. ; Desyatnikov, A.S. ; Neshev, D.N. ; Krolikowski, W. ; Denz, C. ; Kivshar, Yu.S.
Author_Institution :
Nonlinear Phys. Center, Australian Nat. Univ., Canberra, ACT, Australia
Abstract :
In this paper, experimental observation of Landau-Zener tunnelling in optically induced hexagonal photonic lattices by studying symmetric and asymmetric three-fold resonances is reported. Because of the fixed length of the photorefractive crystal, the dynamics of the propagating beam is traced by changing the input tilt angle of the probe Gaussian beam, i.e. its initial position in Fourier space relative to the high-symmetry resonance points in the first Brillouin zone.
Keywords :
Fourier transform optics; laser beams; light propagation; optical lattices; photonic crystals; photorefractive materials; resonance; tunnelling; Brillouin zone; Fourier space; Landau-Zener tunnelling dynamics; asymmetric three-fold resonance; hexagonal photonic lattices; high-symmetry resonance points; input tilt angle; optically induced hexagonal photonic lattices; photorefractive crystal; probe Gaussian beam; propagating beam dynamics; symmetric three-fold resonance; Anisotropic magnetoresistance; Atom optics; Lattices; Optical beams; Optimized production technology; Photonic crystals; Physics; Probes; Resonance; Tunneling;
Conference_Titel :
Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference. CLEO Europe - EQEC 2009. European Conference on
Conference_Location :
Munich
Print_ISBN :
978-1-4244-4079-5
Electronic_ISBN :
978-1-4244-4080-1
DOI :
10.1109/CLEOE-EQEC.2009.5192107
