High resolution Fourier transform spectroscopy and crystal-field analysis in Tm,Ho:BaY2F8

A. Baraldi, R. Capelletti, M. Mazzera, P. Riolo, G. Amoretti, N. Magnani, E. Sani, A. Toncelli, M. Tonelli

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

A Tm3+- Ho3+-codoped single crystal of monoclinic BaY2F8 has been characterized by means of high resolution FTIR spectroscopy in the wave number range 2000 - 24000 cm-1 and in the temperature range 9 - 300 K. The energy level schemes of the two lanthanide ions as determined by the optical absorption spectra is presented, analyzed, and fitted within a single ion Hamiltonian model. The very small energy separation (about 0.6 - 1.6 cm-1) measured between the first and second sublevels of the ground state manifolds for both the ions is in line with the theoretical predictions. The impurity-phonon coupling is put into evidence by the thermally induced line shift and broadening, and by the detection of vibronic replicas of a few lines.

Original languageEnglish
Pages (from-to)248-251
Number of pages4
JournalPhysica Status Solidi C - Current Topics in Solid State Physics
Volume2
Issue number1
DOIs
Publication statusPublished - Jan 2005

ASJC Scopus subject areas

  • Condensed Matter Physics

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