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Optical Engineering

Multiple refocusing in BK9 glass generated by a loosely focused high-intensity femtosecond pulse
Author(s): Wenjun Liu; Xiang Lin; Lihui Pang; Xiaowei Song
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Paper Abstract

Multiple refocusing in BK9 glass induced by a loosely focused high-intensity femtosecond pulse is studied experimentally and numerically. Multiple refocusing and small filament are clearly observed in the sample irradiated by loosely focused 120 fs femtosecond laser pulses with high power, up to 500 times the self-focusing critical power. Up to five refocusing peaks are observed along the direction of the pulse propagation. The dependence of the intensity distribution of the plasma luminescence on the pulse energy is investigated.

Paper Details

Date Published: 14 September 2012
PDF: 4 pages
Opt. Eng. 51(9) 099001 doi: 10.1117/1.OE.51.9.099001
Published in: Optical Engineering Volume 51, Issue 9
Show Author Affiliations
Wenjun Liu, Harbin Institute of Technology in Weihai (China)
Xiang Lin, Harbin Institute of Technology in Weihai (China)
Lihui Pang, Harbin Institute of Technology in Weihai (China)
Xiaowei Song, Harbin Institute of Technology in Weihai (China)


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