Lanthanum lutetium gallium garnets doped with Cr3+ and Nd3+ ions: analyses of elemental composition and energy transfer

Ozen G., BELIN B., YILDIRIM G. H., GUVEN H.

OPTICS COMMUNICATIONS, cilt.173, ss.341-347, 2000 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 173
  • Basım Tarihi: 2000
  • Doi Numarası: 10.1016/s0030-4018(99)00620-3
  • Dergi Adı: OPTICS COMMUNICATIONS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.341-347
  • İstanbul Teknik Üniversitesi Adresli: Evet

Özet

A series of experiments was carried out in order to determine the elemental concentration of a sample doped with Cr3+, and to elucidate the nature of the energy transfer process between the Cr3+ and Nd3+ ions in lanthanum lutetium gallium garnets. Elemental concentrations were determined using the instrumental neutron activation and X-ray fluorescence techniques. Nature of the energy transfer was studied by obtaining the spectral data on the single doped samples with Cr3+ and Nd3+, and on the double doped sample with both ions. These data include absorption, luminescence, excitation spectra and pulsed excitation. The Cr --> Nd transfer efficiency, eta, was quantitatively determined to be 0.59 at room temperature. (C) 2000 Elsevier Science B.V. All rights reserved.