Near-infrared fluorescence in neodymium acetylacetonate hydrate doped poly methyl methacrylate

Yangyang Du; Baojie Chen; Ke Liu; Xin Zhao; Zhiqiang Wang; Hai Lin

doi:10.1117/1.OE.53.5.057102

5 May 2014 Near-infrared fluorescence in neodymium acetylacetonate hydrate doped poly methyl methacrylate

Yangyang Du, Baojie Chen, Ke Liu, Xin Zhao, Zhiqiang Wang, Hai Lin

Author Affiliations +

Optical Engineering, Vol. 53, Issue 5, 057102 (May 2014). https://doi.org/10.1117/1.OE.53.5.057102

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 cm² , 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 ⁻²⁰and 1.28×10 ⁻²⁰cm² , 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.

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Yangyang Du, Baojie Chen, Ke Liu, Xin Zhao, Zhiqiang Wang, and Hai Lin "Near-infrared fluorescence in neodymium acetylacetonate hydrate doped poly methyl methacrylate," Optical Engineering 53(5), 057102 (5 May 2014). https://doi.org/10.1117/1.OE.53.5.057102

Published: 5 May 2014

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