Enhancement and broadening of extreme-ultraviolet supercontinuum in a relative phase controlled two-color laser field |
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| Authors: | Zheng Yinghui Zeng Zhinan Li Xiaofang Chen Xiaowei Liu Peng Xiong Hui Lu Hui Zhao Shitong Wei Pengfei Zhang Li Wang Zhiguang Liu Jun Cheng Ya Li Ruxin Xu Zhizhan |
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| Affiliation: | State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Acaedmy of Sciences, Shanghai, China. |
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| Abstract: | We experimentally demonstrate the generation of an extreme-ultraviolet (XUV) supercontinuum in argon with a two-color laser field consisting of an intense 7 fs pulse at 800 nm and a relatively weak 37 fs pulse at 400 nm. By controlling the relative time delay between the two laser pulses, we observe enhanced high-order harmonic generation as well as spectral broadening of the supercontinuum. A method to produce isolated attosecond pulses with variable width and intensity is proposed. |
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