Share Email Print

Proceedings Paper

Self-phase modulation of an ultra-short laser pulse from laser breakdown plasma
Author(s): Yongsheng Zhang; Lixin Yan; Guoxin Zheng; Lijun Wang; Jingru Liu
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

The detailed dynamic of an atom in a laser field with strength comparable to the atomic electric field is rich in physics and potential applications. Laser-breakdown plasma-induced spectral shifting in supersonic rare gases jet has been investigated with a sub-picosecond KrF excimer laser focused to peak intensity in the region of 1015W/cm2. A 1.4mm diameter gas jet target was used in the experiment to minimize the refraction of the laser beam and thus a well-defined focused region was obtained. The typical quasi-periodic spectral shifting structures for helium and argon have been measured at various gas densities. For gas densities below 1x1020cm-3,both spectral red-shift and blue-shift were observed, indicating the gas is partially ionized, in contrast to the predominantly blue shifted as the gas densities grows high and fully ionized. Compared to the other ultra-short pulse measurement methods, qualitative information about the pulse can be deduced by observing their spectrum after interacting with rare gas.

Paper Details

Date Published: 29 January 2007
PDF: 6 pages
Proc. SPIE 6279, 27th International Congress on High-Speed Photography and Photonics, 62793V (29 January 2007); doi: 10.1117/12.725336
Show Author Affiliations
Yongsheng Zhang, Northwest Institute of Nuclear Technology (China)
Lixin Yan, Tsinghua Univ. (China)
Guoxin Zheng, Northwest Institute of Nuclear Technology (China)
Lijun Wang, Northwest Institute of Nuclear Technology (China)
Jingru Liu, Northwest Institute of Nuclear Technology (China)

Published in SPIE Proceedings Vol. 6279:
27th International Congress on High-Speed Photography and Photonics

© SPIE. Terms of Use
Back to Top