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Efficient green fluorescence and upconversion emissions from Er 3+ ions in CdS sol gel silica glass

PANKAJ DUTTA1,*

Affiliation

  1. Laser and Spectroscopy laboratory, Department of Physics, Dibrugarh University, Dibrugarh -786 004, Assam, India

Abstract

Er3+ ions doped in CdS silica glasses were prepared by sol-gel route. Absorption and photoluminescence spectra of the glasses were analyzed in the light of the Judd-Ofelt theory. Spectroscopic analysis of the multiphoton processes in the glasses was carried out by monitoring the upconversion luminescence. The study reveals the potential of the present glass for the 4S3/2 → 4I15/2 and 2H11/2 → 4I15/2 Erbium lasing transitions..

Keywords

Judd Ofelt Parameters, Photoluminescence, Upconversion, Rare-Earth.

Citation

PANKAJ DUTTA, Efficient green fluorescence and upconversion emissions from Er 3+ ions in CdS sol gel silica glass, Optoelectronics and Advanced Materials - Rapid Communications, 6, 3-4, March-April 2012, pp.427-433 (2012).

Submitted at: Jan. 11, 2012

Accepted at: April 11, 2012