22 February 2018 Hollow-core negative curvature fiber: a novel platform for lab-on-a-fiber
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Abstract
Hollow-core photonic crystal fiber (HC-PCF) has been proved to be a versatile platform for lab-on-a-fiber applications. By filling the fiber with various gases, liquids or solid materials, the light-matter interaction could be greatly enhanced. Many novel optical phenomena that are unattainable in free-space could be easily identified inside the fiber. Such a platform offers a promising route for creating compact, integrable and biocompatible all-fiber multifunctional optical devices. Here, we review our recent progress in developing a novel HC-PCF coined "hollow-core negative curvature fiber" (NCF) that could provide light guidance at spectral ranges covering from UV, visible, NIR to MIR. These NCFs show attributes of low transmission loss, octave-spanning transmission bandwidth, high damage threshold and single modeness. As a proof-of-concept demonstration for lab-on-a-fiber applications, we filled one of the fibers with ethanol (refractive index 1.36) to form a liquid-core anti-resonant fiber. At a low volume of 1 μL, Raman signal from ethanol was observed at a pump power of 2 mW. Such a high performance NCF opens a window for applications in fiber-enhanced spectroscopy, biochemical sensing and nano-plasmonics.
Conference Presentation
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Ying-Ying Wang, Ying-Ying Wang, Xiao-Cong Wang, Xiao-Cong Wang, Shoufei Gao, Shoufei Gao, Wei Ding, Wei Ding, Pu Wang, Pu Wang, } "Hollow-core negative curvature fiber: a novel platform for lab-on-a-fiber", Proc. SPIE 10536, Smart Photonic and Optoelectronic Integrated Circuits XX, 105360I (22 February 2018); doi: 10.1117/12.2296349; https://doi.org/10.1117/12.2296349
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