Title :
Spatial solitons carrying phase singularities in nematic liquid crystals
Author :
Izdebskaya, Yana V. ; Desyatnikov, Anton S. ; Assanto, Gaetano ; Kivshar, Yuri
Author_Institution :
Nonlinear Phys. Center, Australian Nat. Univ., Canberra, ACT, Australia
fDate :
Aug. 28 2011-Sept. 1 2011
Abstract :
We demonstrate self-trapped laser beams carrying optical vortices in nematic liquid crystals. We experimentally observe astigmatic transformations of vortex beams into spiralling dipole azimuthons accompanied by a nontrivial power-dependent charge-flipping of on-axis phase dislocations.
Keywords :
aberrations; nematic liquid crystals; optical solitons; optical vortices; radiation pressure; astigmatic transformations; nematic liquid crystals; optical vortices; phase singularities; self-trapped laser beams; spatial solitons; Laser beams; Liquid crystals; Optical solitons; Optical vortices; Optical waveguides; Optimized production technology;
Conference_Titel :
Quantum Electronics Conference & Lasers and Electro-Optics (CLEO/IQEC/PACIFIC RIM), 2011
Conference_Location :
Sydney, NSW
Print_ISBN :
978-1-4577-1939-4
DOI :
10.1109/IQEC-CLEO.2011.6194139
