Significant blue-shift in photoluminescence excitation spectra of Nd3+:LaF3 potential laser medium at low-temperature

Ren Arita, Yuki Minami, Marilou Cadatal-Raduban, Minh Hong Pham, Melvin John Fernandez Empizo, Mui Viet Luong, Tatsuhiro Hori, Masahiro Takabatake, Kazuhito Fukuda, Kazuyuki Mori, Kohei Yamanoi, Toshihiko Shimizu, Nobuhiko Sarukura, Kentaro Fukuda, Noriaki Kawaguchi, Yuui Yokota, Akira Yoshikawa

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


Temperature-dependent optical properties of bulk Nd3+:LaF3 crystals are reported. A blue-shift in the photoluminescence excitation (PLE) spectrum is observed at 30 K. The 173.2-nm emission peak wavelength at 300 K shifted to 172.8 nm at 30 K, consistent with the 6-nm blue-shift in transmission edge and 2437-cm-1 increase in the lowest energy level of the 4f25d configuration. Thermal broadening of the 5d-4f emission bands with increasing temperature is also observed as the dip at around 178.5 nm present at 30 K disappears at 300 K. A smaller spectral overlap between the PLE and emission spectra is observed as temperature is decreased. Our results suggest that absorption cross-section at the peak fluorescence wavelength is expected to decrease at 30 K.

Original languageEnglish
Pages (from-to)462-464
Number of pages3
JournalOptical Materials
Publication statusPublished - 2015


  • Fluoride crystal
  • Laser material
  • Nd:LaF
  • Temperature dependent
  • Vacuum ultraviolet

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Spectroscopy
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry
  • Electrical and Electronic Engineering


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