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Optical Engineering

Near-infrared fluorescence in neodymium acetylacetonate hydrate doped poly methyl methacrylate
Author(s): Yangyang Du; Baojie Chen; Ke Liu; Xin Zhao; Zhiqiang Wang; Hai Lin
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Paper Abstract

Neodymium acetylacetonate hydrate (NAH) doped poly methyl methacrylate (PMMA) has been prepared and near-infrared (NIR) 1069 and 1342 nm emissions possessing the full widths at half maximum of correspondingly 61 and 75 nm have been observed. Judd-Ofelt intensity parameters Ω t (t=2 , 4, 6) are respectively derived to be 16.34×10 −20 , 11.35×10 −20[/sup] , and 9.50×10 −20   cm 2 , indicating a high asymmetrical and covalent environment of Nd 3+ in NAH doped PMMA. The spontaneous emission probabilities for F 3/2 4 →I 11/2 4 and F 3/2 4 →I 13/2 4 transitions are severally 2542.4 and 456.9  s −1[/sup] , from which the associated maximum stimulated emission cross sections have been determined to be 3.19×10 −20 and 1.28×10 −20   cm 2 , respectively. High emission probabilities and large emission cross sections of NIR fluorescence in NAH doped PMMA reveal its potential as an NIR polymer optical material in practical applications as optical thin films and fibers.

Paper Details

Date Published: 5 May 2014
PDF: 6 pages
Opt. Eng. 53(5) 057102 doi: 10.1117/1.OE.53.5.057102
Published in: Optical Engineering Volume 53, Issue 5
Show Author Affiliations
Yangyang Du, Dalian Polytechnic Univ. (China)
Baojie Chen, City Univ. of Hong Kong (China)
Ke Liu, Beijing Institute of Technology (China)
Xin Zhao, Dalian Polytechnic Univ. (China)
Zhiqiang Wang, Dalian Polytechnic Univ. (China)
Hai Lin, Dalian Polytechnic Univ. (China)

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