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Propagation of non-diffracting intense ultraviolet beams |
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| Authors: | Olivier Chalus Alexey Sukhinin Alejandro Aceves Jean-Claude Diels |
| Institution: | aDepartment of Physics and Astronomy, The University of New Mexico, Albuquerque, NM 87131, USA bDepartment of Mathematics and Statistics, The University of New Mexico, Albuquerque, NM 87131, USA |
| Abstract: | Ultraviolet pulses of 200 ps duration are focused in vacuum, and launched into the atmosphere through an aerodynamic window. Instead of diffracting, above a threshold of 100 mJ, the beam propagates in a self-induced waveguide in air. The peak electric field and beam profile are consistent with the eigenfunction of a modified nonlinear Schrödinger equation. The evolution of the beam waist with distance is calculated by a combination of the nonlinear Schrödinger equation and an equation for the nonlinear losses. |
| Keywords: | 10 000 10 100 40 020 80 090 |
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