Fluorescence-based remote irradiation sensor in liquid-filled hollow-core photonic crystal fiber

被引：21
作者：
Zeltner, R. [1 ,2 ]
Bykov, D. S. [1 ]
Xie, S. [1 ]
Euser, T. G. [1 ,3 ]
Russell, P. St. J. [1 ,2 ]
机构：
[1] Max Planck Inst Sci Light, Guenther Scharowsky Str 1, D-91058 Erlangen, Germany
[2] Univ Erlangen Nurnberg, Dept Phys, Guenther Scharowsky Str 1, D-91058 Erlangen, Germany
[3] Univ Cambridge, Cavendish Lab, JJ Thomson Ave, Cambridge CB3 0HE, England
来源：
APPLIED PHYSICS LETTERS | 2016年 / 108卷 / 23期
关键词：
OPTICAL-FIBER; LIGHT; LUMINESCENCE; PARTICLES; PCF;
D O I：
10.1063/1.4953590
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We report an irradiation sensor based on a fluorescent "flying particle" that is optically trapped and propelled inside the core of a water-filled hollow-core photonic crystal fiber. When the moving particle passes through an irradiated region, its emitted fluorescence is captured by guided modes of the fiber core and so can be monitored using a filtered photodiode placed at the fiber end. The particle speed and position can be precisely monitored using in-fiber Doppler velocimetry, allowing the irradiation profile to be measured to a spatial resolution of similar to 10 mu m. The spectral response can be readily adjusted by appropriate choice of particle material. Using dye-doped polystyrene particles, we demonstrate detection of green (532 nm) and ultraviolet (340 nm) light. Published by AIP Publishing.
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页数：4
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