期刊
OPTICAL MATERIALS
卷 60, 期 -, 页码 25-29出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.optmat.2016.07.006
关键词
Infra-red photoluminescence; Metallic nanoparticles; Heavy-metal oxide glasses
资金
- National Institute of Photonics (INCT de Fotonica)
- Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq)
- Fundacao de Amparo a Ciencia e Tecnologia do Estado de Pernambuco (FACEPE)
Infrared photoluminescence (PL) properties of PbO-GeO2 glasses containing neodymium ions (Nd3+) and silver nanoparticles (NPs) were investigated. The excitation was made with a continuous-wave diode laser operating at 805 nm, in resonance with the Nd3+ transition I-4(9/2) -> F-4(5/2). Growth of similar to 160% in the PL intensity at 1064 nm, was observed in comparison with a reference sample without silver NPs. The PL enhancement is attributed to the increased local-field in the Nd3+ locations nearby the NPs. The present results indicate that PbO-GeO2 glasses containing Nd3+ and silver NPs have good prospect to be used in optical amplifiers at 1064 nm. (C) 2016 Elsevier B.V. All rights reserved.
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