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Proceedings Paper

Theoretical study on the vector behavior of single- and sub-cycle pulsed-beam propagation in free space
Author(s): Hong Guo; Hua Tang; Xiquan Fu; Dongmei Deng; Guangshan Lu; Yunli Qiu; Mingwei Liu; Song Yu
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Paper Abstract

In this paper, an integral solutions for the transverse and longitudinal components of the laser field for ultrashort pulsed-beam propagation in free space are derived, applying Fourier transform and the paraxial approximation in frequency domain. Furthermore, using the complex analytical signal (CAS) theory, the solutions for the components of a pulsed Gaussian-like beam in rectangular coordinate are derived and contrasted with those derived with slowly-varying-envelop-approximations (SVEA). Meanwhile, the results show that if the pulses as short as sub-cycle, SVEA will cause the spatial singularity for both transverse and longitudinal components of the laser field and CAS must be applied to eliminate the singularity.

Paper Details

Date Published: 25 June 2003
PDF: 8 pages
Proc. SPIE 4969, Laser Resonators and Beam Control VI, (25 June 2003); doi: 10.1117/12.478981
Show Author Affiliations
Hong Guo, South China Normal Univ. (China)
Hua Tang, South China Normal Univ. (China)
Xiquan Fu, South China Normal Univ. (China)
Dongmei Deng, South China Normal Univ. (China)
Guangshan Lu, South China Normal Univ. (China)
Yunli Qiu, South China Normal Univ. (China)
Mingwei Liu, South China Normal Univ. (China)
Song Yu, South China Normal Univ. (China)

Published in SPIE Proceedings Vol. 4969:
Laser Resonators and Beam Control VI
Alexis V. Kudryashov; Alan H. Paxton, Editor(s)

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