@misc{oai:repo.qst.go.jp:00065929, author = {ITAKURA, Ryuji and KUMADA, Takayuki and NAKANO, Motoyoshi and AKAGI, Hiroshi and 板倉 隆二 and 赤木 浩}, month = {May}, note = {We demonstrate the method to measure (i) the waveform of a vacuum-ultraviolet (VUV) pulse and (ii) the time-dependent reflectivity of a plasma mirror based on the concept of frequency-resolved optical gating. Time-resolved VUV reflection spectroscopy of fused silica excited by an intense femtosecond laser pulse is performed. The measured spectrogram is analyzed using the least-square generalized projections algorithm. The present method enables us not only to retrieve a significantly chirped VUV pulse with the duration longer than 1 ps, but also to investigate the electronic excitation dynamics in laser-plasma formation., The 5th Advanced Lasers and Photon Sources (ALPS’16)}, title = {Retrieval of Vacuum-Ultraviolet Waveform and Plasma Mirror Reflectivity Using Frequency-Resolved Optical Gating}, year = {2016} }