Optical spectroscopy of Er3+-doped Bi12SiO20 piezoelectric crystal

Photoluminescence of Er3+ ions in a Bi12SiO20 crystal is investigated under excitation in the near infrared region (4I15/2→4I9/2 transition) at low temperature. Two non-equivalent Er3+ centers are detected in the crystal. Besides the one photon infrared emission (4I11/2→4I15/2), up-converted lumines...

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Bibliographic Details
Published in:Journal of alloys and compounds 2002-07, Vol.341 (1-2), p.275-279
Main Authors: Ramı́rez, M.O, Lira C, A, Sanz Garcı́a, J.A, Bausá, L.E, Caldiño G, U
Format: Article
Language:English
Subjects:
BSO
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Er3
Exact sciences and technology
Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation
Other solid inorganic materials
Photoluminescence
Physics
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Summary:Photoluminescence of Er3+ ions in a Bi12SiO20 crystal is investigated under excitation in the near infrared region (4I15/2→4I9/2 transition) at low temperature. Two non-equivalent Er3+ centers are detected in the crystal. Besides the one photon infrared emission (4I11/2→4I15/2), up-converted luminescence in the green (4S3/2→4I15/2) and red (4F9/2→4I15/2) spectral regions and down-converted emission (4S3/2→4I13/2) in the near infrared region have been observed and resolved for each type of Er center. The mechanisms responsible for the conversion process are analyzed. The position of the Stark energy levels are obtained for each center for different Er3+ multiplets.
ISSN:0925-8388
1873-4669
DOI:10.1016/S0925-8388(02)00023-3