Optical characteristic improvement of neodymium-doped lanthanum fluoride thin films grown by pulsed laser deposition for vacuum ultraviolet application

Mirai Ieda, Tatsuya Ishimaru, Shingo Ono, Kohei Yamanoi, Marilou Cadatal-Raduban, Toshihiko Shimizu, Nobuhiko Sarukura, Kentaro Fukuda, Toshihisa Suyama, Yuui Yokota, Takayuki Yanagida, Akira Yoshikawa

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

Neodymium-doped lanthanum fluoride (Nd 3+:LaF 3) thin films were successfully grown on MgF 2(001) substrates by pulsed laser deposition. Photoluminescence spectra revealed a dominant peak at 173nm with a decay time of 7.8 ns, which is similar to the results obtained from a bulk Nd 3+:LaF 3 crystal. Improvements in crystalline quality and vacuum ultraviolet (VUV) luminescence quantum efficiency were achieved by substrate heating, with optimum results being obtained at 400 °C. These results would open up possibilities in the development of a light-emitting device operating in the VUV region.

Original languageEnglish
Article number022603
JournalJapanese journal of applied physics
Volume51
Issue number2 PART 1
DOIs
Publication statusPublished - 2012 Feb 1

ASJC Scopus subject areas

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

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