Dynamic position shifts of X-ray emission from a water film induced by a pair of time-delayed femtosecond laser pulses | Zendy

Wei-Hung Hsu | Zendy; Frances Camille P. Masim | Zendy; Armandas Balčytis | Zendy; Saulius Juodkazis | Zendy; Koji Hatanaka | Zendy

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Dynamic position shifts of X-ray emission from a water film induced by a pair of time-delayed femtosecond laser pulses

Author(s) -

Wei-Hung Hsu,

Frances Camille P. Masim,

Armandas Balčytis,

Saulius Juodkazis,

Koji Hatanaka

Publication year - 2017

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.25.024109

Subject(s) - femtosecond , optics , laser , materials science , femtosecond pulse shaping , excitation , pulse (music) , irradiation , x ray , atomic physics , physics , quantum mechanics , detector , nuclear physics

Femtosecond double-pulsed laser excitation of a water film in air showed enhancements of X-ray intensity as compared with single pulse irradiation. The position of the highest yield of X-rays strongly depends on temporal separation between the pre-pulse and the main-pulse (energy ratios where ∼ 1 : 10). The strongest X-ray emission was observed at 10-15 ns delay of the main-pulse. Nanoscale roughening of water surface can account for the observation.

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