Vacuum ultraviolet fluorescence spectroscopy of Nd3+:LaF 3 using femtosecond extreme ultraviolet free electron laser

Yuki Shinzato, Kohei Yamanoi, Ryosuke Nishi, Kohei Takeda, Tomoharu Nakazato, Toshihiko Shimizu, Nobuhiko Sarukura, Marilou Cadatal-Raduban, Kentaro Fukuda, Shunsuke Kurosawa, Yuui Yokota, Akira Yoshikawa, Tadashi Togashi, Mitsuru Nagasono, Tetsuya Ishikawa

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3 Citations (Scopus)


Time-resolved vacuum ultraviolet (VUV) fluorescence was observed from a Czochralski method-grown Nd3+:LaF3 crystal excited by 61 nm femtosecond pulses from the extreme ultraviolet free-electron laser (EUV-FEL). The 172 nm fluorescence peak exhibited double exponential fluorescence decay with slow and fast decay components of 6.7 and 1.9 ns, respectively. The spectral profile is similar to those previously reported, but the double exponential nature has never been attained using conventional short-wavelength pulsed lasers. Our results demonstrate the importance of the EUV-FEL for short-wavelength spectroscopy, not just for rare-earth-doped fluorides but also for wide-band-gap semiconductors such as AlGaN.

Original languageEnglish
Article number022401
JournalApplied Physics Express
Issue number2
Publication statusPublished - 2013 Feb 1

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)


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