VUV fluorescence from Nd³⁺:LuLiF₄ by two photon excitation using femtosecond laser

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• 作者：Kohei Yamanoi ; Yuki Minami ; Ryosuke Nishi ; Yuki Shinzato ; Mizuki Tsuboi ; Mui Viet Luong ; Tomoharu Nakazato ; Toshihiko Shimizu ; Nobuhiko Sarukura ; Marilou Cadatal-Raduban ; Minh Hong Pham ; Hung Dai Nguyen ; Yuui Yokota ; Akira Yoshikawa ; Mitsuru Nagasono ; Tetsuya Ishikawa
• 关键词：Solid state laser ; Scintillator ; Vacuum ultraviolet ; Two-photon absorption
• 刊名：Optical Materials
• 出版年：2013
• 出版时间：September, 2013
• 年：2013
• 卷：35
• 期：11
• 页码：2030-2033
• 全文大小：915 K

文摘

We report on the vacuum ultraviolet (VUV) fluorescence from Nd:LLF excited by three excitation sources namely: the 157-nm emission of a F₂ laser, 61-nm emission of an extreme ultraviolet free electron laser (EUV-FEL), and the third harmonic (290 nm) of a Ti:sapphire laser. The optical characteristics of the dominant fluorescence peaks at about 182 nm and 186 nm has a decay time of about 38 ns and is similar for all excitation wavelengths. Further investigation revealed that the VUV fluorescence arising from the 290-nm excitation is due to two-photon absorption. Our results suggest the possibility of developing an all-solid-state vacuum ultraviolet laser via two-photon excitation.