Wigner distribution function method for laser-beam ray tracing

Li Xin

doi:10.3788/HPLPB20132507.1705

Volume 25 Issue 07

May 2013

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Article Navigation > High Power Laser and Particle Beams > 2013 > 25(07): 1705-1708

Wang Huaying, Zhang Zhihui, Zhao Baoqun, et al. Unwrapping algorithm of under-sampled wrapped-phase map[J]. High Power Laser and Particle Beams, 2012, 24: 2311-2317. doi: 10.3788/HPLPB20122410.2311

Citation:

Li Xin. Wigner distribution function method for laser-beam ray tracing[J]. High Power Laser and Particle Beams, 2013, 25: 1705-1708. doi: 10.3788/HPLPB20132507.1705

Wang Huaying, Zhang Zhihui, Zhao Baoqun, et al. Unwrapping algorithm of under-sampled wrapped-phase map[J]. High Power Laser and Particle Beams, 2012, 24: 2311-2317. doi: 10.3788/HPLPB20122410.2311

Citation:

Li Xin. Wigner distribution function method for laser-beam ray tracing[J]. High Power Laser and Particle Beams, 2013, 25: 1705-1708. doi: 10.3788/HPLPB20132507.1705

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Wigner distribution function method for laser-beam ray tracing

doi: 10.3788/HPLPB20132507.1705

Li Xin^,

1.
Institute of Applied Physics and Computational Mathematics,Beijing 100088,China

Received Date: 2012-10-20
Rev Recd Date: 2013-01-14
Publish Date: 2013-05-02

Abstract

Abstract

A laser ray-tracing method with consideration of diffractive effect is developed. The Wigner distribution function defined by laser scalar wave field is introduced along with the Liouville kinetic equation it satisfies. This function can describe the laser energy of any ray along arbitrary direction at any spatial position. The laser energy retains fixed in vacuum or attenuates in plasmas along ray trace. Compared with the conventional ray-tracing method, the Wigner distribution function method can give laser energy attached to ray theoretically and the phase information at boundary can be included in the definition of Wigner distribution function. Also, this method can describe the propagation of laser beams as well as the analytical model and the Fresnel diffraction method.
- inertial confinement fusion,
- coupling between laser and target,
- diffraction,
- geometrical ray tracing,
- Wigner distribution function

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