Sequential three-step three-photon near-infrared quantum splitting in β-NaYF4:Tm3+

Language
en
Document Type
Article
Issue Date
2012-11-08
Issue Year
2012
Authors
Yu, D. C.
Ye, S.
Peng, M. Y.
Zhang, Q. Y.
Wondraczek, Lothar
Editor
Abstract

We report on sequential three-step three-photon near-infrared (NIR) quantum splitting in Tm3+-doped β-NaYF4, where an incident blue photon around 470 nm is split into three NIR photons (1165, 1466, and 1800 nm). The underlying mechanism is analyzed by means of static and dynamic photoemission spectroscopy. Here, an experimental total quantum yield of ∼32% is obtained. When quenching due to residual hydroxyl groups and other defect species can be overcome, numerical analyses indicate a theoretical maximum quantum yield of 158%, suggesting application in efficient spectral converters.

Journal Title
Applied Physics Letters 100.19 (2012): 07.11.2012 <http://apl.aip.org/resource/1/applab/v100/i19/p191911_s1>
Citation
Applied Physics Letters 100.19 (2012): 07.11.2012 <http://apl.aip.org/resource/1/applab/v100/i19/p191911_s1>
DOI
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