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Proceedings Paper

Upconversion mechanisms in KPb2Cl5:Er3+ crystal
Author(s): Rolindes Balda; Mihail Voda; Arantza Mendioroz; Mohamed Al-Saleh; Joaquin M. Fernandez
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Paper Abstract

In this work we report infrared to visible upconversion luminescence in the low phonon-energy host material KPb2Cl5 doped with Er3+ ions. The low phonon energy strongly reduces multiphonon relaxation in this host. As a consequence, in addition to the strong green upconversion luminescence from 2H11/2,4S3/2) levels at room temperature, blue luminescence from 2H9/2 and 4F7/2 levels is also observed under near infrared excitation in the 4I9/2 (801 nm) and 4I11/2 (978 nm) multiplets respectively. The upconversion mechanisms are investigated by means of excitation and timeresolved luminescence spectroscopy.

Paper Details

Date Published: 14 June 2004
PDF: 8 pages
Proc. SPIE 5350, Optical Components and Materials, (14 June 2004); doi: 10.1117/12.528324
Show Author Affiliations
Rolindes Balda, Univ. del Pais Vasco (Spain)
Mihail Voda, Univ. del Pais Vasco (Spain)
Arantza Mendioroz, Univ. del Pais Vasco (Spain)
Mohamed Al-Saleh, Univ. del Pais Vasco (Spain)
Joaquin M. Fernandez, Univ. del Pais Vasco (Spain)
Donostia International Physics Ctr. (Spain)


Published in SPIE Proceedings Vol. 5350:
Optical Components and Materials
Michel J. F. Digonnet; Shibin Jiang, Editor(s)

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