Ultrafast structural dynamics studied by kilohertz time-resolved x-ray diffraction

Guo Xin^a),^b), Jiang Zhou-Ya^c),^d), Chen Long^c),^d), Chen Li-Ming^b),^d), Xin Jian-Guo^a), Rentzepis Peter M.^e), Chen Jie†^c),^d)

Spectrum of Cu K_α and K_β radiation obtained at 1-kHz repetition rate. Inset: Spectrally resolved Cu K_{α 1} and K_{α 2} fine structure components of the x-ray radiation by a 500-nm GaN [0001] crystal.