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College Physics. 2019, (10)

Study of spatial broadening and chirp of ultrashort laser pulsesChinese Full Text

CAO Yu-xiang;LI Qin;YAN Xiao-na;DAI Ye;Department of Physics, Shanghai University;

Abstract: Spatial broadening of ultrashort laser pulses with a certain spectral width is studied after passing through a pair of parallel gratings. Firstly, the formulas for calculating the spatial broadening of ultrashort laser pulses after passing through a pair of gratings are derived by using the conventional grating equation and geometric optics knowledge. The experimental results also show that with an increase of the distance between grating pair, the transverse axis length of the pulsed spot incre... More
Keywords：

ultrashort laser pulse; grating diffraction; spatial broadening; spatial chirp; spectral characteristics;

  • DOI：

    10.16854/j.cnki.1000-0712.180689

  • Series：

    (A) Mathematics/ Physics/ Mechanics/ Astronomy; (I) Electronic Technology ＆ Information Science

  • Subject：

    Physics; Wireless Electronics

  • Classification Code：

    TN24

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