Spectral attenuation of a 400-nm laser pulse propagating through a plasma filament induced by an intense femtosecond laser pulse<xref rid="cpb_29_1_013301fn1" ref-type="fn">*</xref> <fn id="cpb_29_1_013301fn1"> <label>*</label> <p>Project supported by the National Natural Science Foundation of China (Grant Nos. U1932133, 51733004, 51525303, and 21702085) and the Fundamental Research Funds for the Central Universities, China (Grant Nos. lzujbky-2016-35 and lzujbky-2018-it36).</p> </fn>

Spectral attenuation of a 400-nm laser pulse propagating through a plasma filament induced by an intense femtosecond laser pulse* *

Project supported by the National Natural Science Foundation of China (Grant Nos. U1932133, 51733004, 51525303, and 21702085) and the Fundamental Research Funds for the Central Universities, China (Grant Nos. lzujbky-2016-35 and lzujbky-2018-it36).

Wang Quan-Jun¹, Chen Rao¹, Zhao Jia-Chen¹, Sun Chun-Lin², Wang Xiao-Zhen², Ding Jing-Jie¹, Liu Zuo-Ye^{1, †}, Hu Bi-Tao¹

The schematic diagram of the experimental setup for the measurement. M1, M2, M3: 800-nm high reflective mirrors; M4, M5, M6, M7: 400-nm high reflective mirrors. ND: the continuously variable neutral density attenuator. DM: the dichroic mirror. SM: the spherical mirror. USB 4000: the fiber-pigtailed spectrometer.