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Proceedings Paper

Optical properties and size distribution of the nanocolloids made of rare-earth ion-doped NaYF4
Author(s): Darayas N. Patel; Ashley Lewis; Donald Wright III; Danielle Lewis; Rueben Valentine; Maucus Valentine; Dennis Wessley; Sergey Sarkisov; Abdalla M. Darwish
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Paper Abstract

In this paper we investigate optical properties and size distribution of the nano-colloids made of trivalent rare-earth ion doped fluorides: holmium and ytterbium, thulium and ytterbium, and erbium and ytterbium co-doped NaYF4. These materials were synthesized by using simple co-precipitation synthetic method. The initially prepared micro-crystals had very weak or no visible upconversion fluorescence signals when being pumped with a 980-nm laser. The fluorescence intensity significantly increased after the crystals were annealed at a temperature of 400°C - 600°C undergoing the transition from cubic alpha to hexagonal beta phase of the fluoride host. Nano-colloids of the crystals were made in polar solvents using the laser ablation and ball milling methods. Size analyses of the prepared nano-colloids were conducted using a dynamic light scatterometer and atomic force microscope. The nano-colloids were filled in holey PCFs and their fluorescent properties were studied and the feasibility of new a type of fiber amplifier/laser was evaluated.

Paper Details

Date Published: 16 March 2015
PDF: 9 pages
Proc. SPIE 9359, Optical Components and Materials XII, 93591L (16 March 2015); doi: 10.1117/12.2077680
Show Author Affiliations
Darayas N. Patel, Oakwood Univ. (United States)
Ashley Lewis, Oakwood Univ. (United States)
Donald Wright III, Oakwood Univ. (United States)
Danielle Lewis, Oakwood Univ. (United States)
Rueben Valentine, Oakwood Univ. (United States)
Maucus Valentine, Oakwood Univ. (United States)
Dennis Wessley, Oakwood Univ. (United States)
Sergey Sarkisov, SSS Optical Technologies, LLC (United States)
Abdalla M. Darwish, Dillard Univ. (United States)

Published in SPIE Proceedings Vol. 9359:
Optical Components and Materials XII
Shibin Jiang; Michel J. F. Digonnet, Editor(s)

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