Volume 89, Number 3, February 2010
|Number of page(s)||5|
|Section||Electromagnetism, Optics, Acoustics, Heat Transfer, Classical Mechanics, and Fluid Dynamics|
|Published online||19 February 2010|
Analogue gravity and ultrashort laser pulse filamentation
CNISM - Via della Vasca Navale 84, I-00146, Rome, Italy, EU
2 Department of Physics and Mathematics, Università dell'Insubria - Via Valleggio 11, I-22100 Como, Italy, EU
3 Arizona Center for Mathematical Sciences and Optical Sciences Center, University of Arizona Tucson, 85721 AZ, USA
Corresponding author: email@example.com
Accepted: 21 January 2010
Ultrashort laser pulse filaments in dispersive nonlinear Kerr media induce a moving refractive index perturbation which modifies the spacetime geometry as seen by co-propagating light rays. We study the analogue geometry induced by the filament and show that one of the most evident features of filamentation, namely conical emission, may be precisely reconstructed from the geodesics. We highlight the existence of favorable conditions for the study of analogue black hole kinematics and Hawking-type radiation.
PACS: 42.65.Jx – Beam trapping, self-focusing and defocusing; self-phase modulation / 04.70.Dy – Quantum aspects of black holes, evaporation, thermodynamics
© EPLA, 2010
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