Design of rare-earth-ion doped chalcogenide photonic crystals for enhancing the fluorescence emission

Rare-earth-ion doped chalcogenide glass is a promising material for developing mid-infrared light sources. In this work, Tm3+-doped chalcogenide glass was prepared and photonic crystal structures were designed to enhance its fluorescence emission at approximately 3.8μm. By employing the finite-diffe...

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Bibliographic Details
Published in:Optics communications 2014-07, Vol.322, p.123-128
Main Authors: Zhang, Peiqing, Dai, Shixun, Niu, Xueke, Xu, Yinsheng, Zhang, Wei, Wu, Yuehao, Xu, Tiefeng, Nie, Qiuhua
Format: Article
Language:English
Subjects:
Chalcogenide glass
Chalcogenides
Emission
Enhanced fluorescence
Finite difference method
Fluorescence
Glass
Light sources
Photonic crystal
Photonic crystals
Photons
Rare-earth ion
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Summary:Rare-earth-ion doped chalcogenide glass is a promising material for developing mid-infrared light sources. In this work, Tm3+-doped chalcogenide glass was prepared and photonic crystal structures were designed to enhance its fluorescence emission at approximately 3.8μm. By employing the finite-difference time-domain (FDTD) simulation, the emission characteristics of the luminescent centers in the bulk material and in the photonic crystals were worked out. Utilizing analysis of the photon excitation inside the sample and the photon extraction on the sample surface, it was found that fluorescence emission can be significantly enhanced 260-fold with the designed photonic crystal structure. The results of this work can be used to realize high-efficiency mid-infrared light sources.
ISSN:0030-4018
1873-0310
DOI:10.1016/j.optcom.2014.01.079