Results 1 to 10 of about 16,748 (295)

Kagome Hollow Core Fiber-Based Mid-Infrared Dispersion Spectroscopy of Methane at Sub-ppm Levels [PDF]

Sensors, 2019
In this paper, we demonstrate the laser-based gas sensing of methane near 3.3 µm inside hollow-core photonic crystal fibers. We exploit a novel anti-resonant Kagome-type hollow-core fiber with a large core diameter (more than 100 µm) which ...
Karol Krzempek, Krzysztof Abramski, Michal Nikodem   +2 more
doaj   +4 more sources

Hollow core optical fiber enabled by epsilon-near-zero material [PDF]

Nanophotonics
Hollow core optical fibers of numerous guiding mechanisms have been studied in the past decades for their advantages on guiding light in air core. This work demonstrates a new hollow core optical fiber based on a different guiding mechanism, which ...
Zhang Leon, Love Stuart, Anopchenko Aleksei, Lee Ho Wai Howard   +3 more
doaj   +3 more sources

Microfluidic Raman Sensing Using a Single Ring Negative Curvature Hollow Core Fiber [PDF]

Biosensors, 2021
A compact microfluidic Raman detection system based on a single-ring negative-curvature hollow-core fiber is presented. The system can be used for in-line qualitative and quantitative analysis of biochemicals. Both efficient light coupling and continuous
Xinyu Wang, Shuguang Li, Shoufei Gao, Yingying Wang, Pu Wang, Heike Ebendorff-Heidepriem, Yinlan Ruan   +6 more
doaj   +2 more sources

Facile Cell-Friendly Hollow-Core Fiber Diffusion-Limited Photofabrication [PDF]

Frontiers in Bioengineering and Biotechnology, 2021
Bioprinting emerges as a powerful flexible approach for tissue engineering with prospective capability to produce tissue on demand, including biomimetic hollow-core fiber structures. In spite of significance for tissue engineering, hollow-core structures
Alexander G. Savelyev, Alexander G. Savelyev, Anastasia V. Sochilina, Anastasia V. Sochilina, Roman A. Akasov, Roman A. Akasov, Roman A. Akasov, Anton V. Mironov, Alina Yu. Kapitannikova, Tatiana N. Borodina, Natalya V. Sholina, Natalya V. Sholina, Kirill V. Khaydukov, Andrei V. Zvyagin, Andrei V. Zvyagin, Andrei V. Zvyagin, Alla N. Generalova, Alla N. Generalova, Evgeny V. Khaydukov, Evgeny V. Khaydukov, Evgeny V. Khaydukov   +20 more
doaj   +2 more sources

Hollow-core fiber gas lasers [Invited] [PDF]

Light: Science & Applications
Recent years have witnessed significant advancements in hollow-core fiber gas lasers (HCFGLs), driven by developments in hollow-core fiber (HCF) design and fabrication. These novel lasers are characterized by hollow-core structure, providing an ultralong
Zefeng Wang, Wenxi Pei, Zhiyue Zhou, Xuanxi Li, Hao Li, Binyu Rao, Linyong Yang, Rong Zhao, Chenxin Gao, Xiaoming Xi, Jing Shi, Guorui Lv, Luohao Lei, Qi Chen, Tianyu Li, Zhixian Li, Meng Wang, Zilun Chen   +17 more
doaj   +2 more sources

Fabricating Air Pressure Sensors in Hollow-Core Fiber Using Femtosecond Laser Pulse [PDF]

Micromachines, 2022
In this paper, a hollow core fiber was spliced with standard single-mode fibers to form a fiber optic gas pressure sensor, and its sensing characteristics with single hole or multi-holes punched on the hollow core fiber with femtosecond laser pulses were
Changning Liu, Wuqiang Tao, Cong Chen, Yang Liao   +3 more
doaj   +2 more sources

All-fiber highly efficient delivery of 2 kW laser over 2.45 km hollow-core fiber [PDF]

Nature Communications
Anti-resonant hollow-core fibers have emerged as an important medium for high-power laser delivery due to their low optical nonlinearity and high damage threshold.
Jing Shi, Binyu Rao, Zilun Chen, Zefeng Wang, Guangrong Sun, Zuying Xu, Zhen Huang, Peng Li, Zihan Dong, Min Fu, Xin Tian, Baolai Yang, Jian Zhang, Zhiyue Zhou, Tianyu Li, Lei Zhang, Biao Shui, Chenxin Gao, Jinbao Chen   +18 more
doaj   +2 more sources

Ultrahigh Extinction Ratio Leaky-Guided Hollow Core Fiber Mach–Zehnder Interferometer Assisted by a Large Core Hollow Fiber Beam Splitter [PDF]

Nanomaterials
We proposed a novel fiber Mach–Zehnder interferometer (FMZI) that can perform an ultrahigh extinction ratio (ER), ultracompact, and ultra-broadband interference characteristics.
Yan-Han Lu, Ren-Xiang Luo, Cheng-Ling Lee   +2 more
doaj   +2 more sources

Double-Cavity Fabry–Perot Interferometer Sensor Based on Polymer-Filled Hollow Core Fiber for Simultaneous Measurement of Temperature and Gas Pressure [PDF]

Sensors
A double-cavity Fabry-Perot (F-P) interferometer sensor based on a polymer-filled hollow core fiber (HCF) has been proposed and experimentally verified. The double cavity of the sensor is formed by filling the hollow core fiber with two kinds of polymer ...
Yixin Zhu, Yufeng Zhang, Qianhao Tang, Shengjie Li, Huaijin Zheng, Dezhi Liang, Haibing Xiao, Chenlin Du, Yongqin Yu, Shuangchen Ruan   +9 more
doaj   +2 more sources

Nested antiresonant nodeless hollow core fiber

Optics Express, 2014
We propose a novel hollow core fiber design based on nested and non-touching antiresonant tube elements arranged around a central core. We demonstrate through numerical simulations that such a design can achieve considerably lower loss than other state-of-the-art hollow fibers.
Francesco Poletti
exaly   +4 more sources