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Three-dimensional light bullets

: Minardi, S.; Eilenberger, F.; Kartashov, Y.V.; Szameit, A.; Röpke, U.; Kobelke, J.; Schuster, K.; Bartelt, H.; Nolte, S.; Torner, L.; Lederer, F.; Tünnermann, A.; Pertsch, T.


Vodopyanov, Konstantin L. (Ed.) ; Society of Photo-Optical Instrumentation Engineers -SPIE-, Bellingham/Wash.:
Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications XI : 24 January 2012, San Francisco, California, USA
Bellingham, WA: SPIE, 2012 (Proceedings of SPIE 8240)
ISBN: 978-0-8194-8883-1
Paper 82400P
Conference "Nonlinear Frequency Generation and Conversion - Materials, Devices, and Applications" <11, 2012, San Francisco/Calif.>
Conference Paper
Fraunhofer IOF ()
nonlinear optic; optical solitons; spatiotemporal dynamics in optics

Three dimensional Light Bullets (3D-LBs) are the most symmetric solitary waves, being nonlinear optical wavepackets propagating without diffraction nor dispersion. Since their theoretical prediction, 3D-LB's have constituted a challenge in nonlinear science, due to the impossibility to avoid catastrophic collapse in conventional homogeneous nonlinear media. We have recently observed stable 3D-LBs in media with periodically modulated transverse refractive index profile. We found that higher order linear and nonlinear effects force the 3D-LBs to evolve along their propagation path and eventually decay. The evolution and decay mechanism entails spatiotemporal effects, which under certain conditions, leads to superluminally propagating wavepackets.