Two-Photon Luminescence Excitation Spectra of Eu3+ in Yttrium Aluminium Garnet

✍ Scribed by L. E. Kholodenkov; A. G. Makhanek

• Publisher: John Wiley and Sons
• Year: 1984
• Tongue: English
• Weight: 607 KB
• Volume: 125
• Category: Article
• ISSN: 0370-1972
• DOI: 10.1002/pssb.2221250142

✦ Synopsis

Abstract

The results are reported of the first study of the ^5^D~2~ manifold of Eu^3+^ in the noninversion and inversion centres of YAG using the method of two‐photon luminescence excitation. Based on the number of Stark components and the two‐photon polarization dependences it is shown that the set of Stark components of ^5^D multiplet corresponds to tetragonal local symmetry. The components of ^5^D~2~ manifold are identified and the crystal field parameters are found for the non‐inversion centre. The europium ion distribution over the centres is determined showing that at least 60% of the ions are in the inversion centre.