Vanadium-doped MgAl2O4 crystals as white light source

Yutaka Fujimoto, Hiroaki Tanno, Kazuhiro Izumi, Shigetomo Yoshida, Shiori Miyazaki, Masanobu Shirai, Kouichirou Tanaka, Yutaka Kawabe, Eiichi Hanamura

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)

Abstract

Spinel MgAl2O4 crystals doped with transition metals show charge-transfer transitions for Ti:MgAl2O4 on one hand and multiplet transitions of (3d)-electrons for Mn:, Fe:, and Co:MgAl2O4 on the other hand. We will show that optical responses of V:MgAl2O4 are closer to those of Ti:MgAl2O4 and also that white emission spectrum is observed. The microscopic process of the white emission is also proposed.

Original languageEnglish
Pages (from-to)282-286
Number of pages5
JournalJournal of Luminescence
Volume128
Issue number3
DOIs
Publication statusPublished - 2008 Mar 1
Externally publishedYes

Keywords

  • Charge-transfer excitation
  • Color center
  • Crystalline field splitting
  • Tungsten-doped spinel
  • V:MgAlO
  • Vanadium-doped spinel

ASJC Scopus subject areas

  • Biophysics
  • Atomic and Molecular Physics, and Optics
  • Chemistry(all)
  • Biochemistry
  • Condensed Matter Physics

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