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Generation of lattice structures of optical vortices

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons60467

Dreischuh,  Alexander
Laser Physics, Max Planck Institute of Quantum Optics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons60299

Chervenkov,  Sotir
Quantum Dynamics, Max Planck Institute of Quantum Optics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons60749

Paulus,  Gerhard G.
Laser Spectroscopy, Max Planck Institute of Quantum Optics, Max Planck Society;
Laboratory for Attosecond Physics, Max Planck Institute of Quantum Optics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons60915

Walther,  Herbert
Laser Physics, Max Planck Institute of Quantum Optics, Max Planck Society;

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Zitation

Dreischuh, A., Chervenkov, S., Neshev, D., Paulus, G. G., & Walther, H. (2002). Generation of lattice structures of optical vortices. Journal of the Optical Society of America B-Optical Physics, 19(3), 550-556. Retrieved from http://www.opticsinfobase.org/abstract.cfm?id=68274.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-000F-C245-2
Zusammenfassung
We demonstrate experimentally the generation of square and hexagonal lattices of optical vortices and reveal their propagation in a saturable nonlinear medium. If the topological charges of the vortices have identical signs, the lattice exhibits rotation, whereas if their signs alternate between being the same and being opposite to each other, we observe stable propagation of the structures. In the nonlinear medium the lattices induce periodic modulation of the refractive index. Diffraction of a probe beam by this nonlinearity-induced periodic structure is observed. (C) 2002 Optical Society of America.