@article{oai:repo.qst.go.jp:00048008, author = {Nakanii, Nobuhiko and Hosokai, Tomonao and C., Pathak Naveen and Masuda, Shinichi and G., Zhidkov Alexei and Nakahra, Hiroki and Iwasa, Kenta and Mizuta, Yoshio and Takeguchi, Naoki and P., Otsuka Takamitsu and Sueda, Keiichi and Ogino, Jumpei and Nakamura, Hirotaka and Mori, Michiaki and Kando, Masaki and Kodama, Ryosuke and 中新 信彦 and 森 道昭 and 神門 正城}, issue = {6}, journal = {Physical Review E}, month = {Dec}, note = {Interaction of relativistically intense axisymmetrically polarized (radially or azimuthally polarized) laser pulses (RIAPLP) with underdense plasma is shown experimentally and theoretically to be essentially different from the interaction of conventional Gaussian pulses. The difference is clearly observed in distinct spectra of the side-scattered laser light for the RIAPLP and Gaussian pulses, as well as in the appearance of a spatially localized strong side emission of second harmonic of the laser pulse in the case of RIAPLP. According to our analysis based on three-dimensional particle-in-cell simulations, this is a result of instability in the propagation of RIAPLP in uniform underdense plasma.}, pages = {063205-1--063205-6}, title = {Decomposition of powerful axisymmetrically polarized laser pulses in underdense plasma}, volume = {94}, year = {2016} }