Results 81 to 90 of about 59,535 (239)

Optical Fiber Fabry–Pérot Interferometer Based on an Air Cavity for Gas Pressure Sensing

IEEE Photonics Journal, 2017
An optical fiber Fabry–Pérot interferometer (FPI) based on an air cavity with a microchannel is proposed and demonstrated for gas pressure measurement.
Ben Xu, Yaming Liu, Dongning Wang, Dagong Jia, Chao Jiang   +4 more
semanticscholar   +1 more source

Mode‐Locked Pulse Generation in Plasmonic Lattices

Laser &Photonics Reviews, EarlyView.
The plasmonic superlattices overlaid with optically pumped organic molecules produce multimode lasing due to mid‐range radiative coupling (MR‐RC, lambda) and long‐range radiative coupling (LR‐RC, 10 lambda). Right: The mode locking emerges spontaneously due to the shared excited state molecular populations which may emit photons to various different ...
Janne I. Heikkinen, Roman Calpe, Laura Yrjänheikki, Atri Halder, Antti J. Moilanen, Matias Koivurova, Tommi K. Hakala   +6 more
wiley   +1 more source

Observation of interaction-induced modulations of a quantum Hall liquid’s area

Nature Communications, 2016
Quantum Hall liquids play host to a wide range of unusual physics. Here, the authors use an electronic Fabry-Pérot interferometer to observe modulations of a quantum Hall liquid’s area, which can offer a means to study the statistics of fractional ...
I. Sivan, H. K. Choi, Jinhong Park, A. Rosenblatt, Yuval Gefen, D. Mahalu, V. Umansky   +6 more
doaj   +1 more source

Optical Coherence Tomography for High‐Precision Industrial Inspection in Industry 4.0: Advances, Challenges, and Future Trends

Laser &Photonics Reviews, EarlyView.
This review examines how optical coherence tomography transforms industrial inspection by delivering real‐time, micrometer‐resolution, depth‐resolved imaging. It surveys applications across display manufacturing, thin films, microelectronics, laser processing, and coatings, evaluates performance against conventional techniques, and highlights emerging ...
Nipun Shantha Kahatapitiya, Sm Abu Saleah, Daewoon Seong, Naresh Kumar Ravichandran, Sangyeob Han, Ruchire Eranga Wijesinghe, Mansik Jeon, Jeehyun Kim   +7 more
wiley   +1 more source

Femtosecond Laser Introduced Cantilever Beam on Optical Fiber for Vibration Sensing

Sensors
An all-fiber vibration sensor based on the Fabry-Perot interferometer (FPI) is proposed and experimentally evaluated in this study. The sensor is fabricated by introducing a Fabry-Perot cavity to the single-mode fiber using femtosecond laser ablation ...
Jin Qiu, Zijie Wang, Zhihong Ke, Tianlong Tao, Shuhui Liu, Quanrong Deng, Wei Huang, Weijun Tong   +7 more
doaj   +1 more source

Ultrabroadband Spacetime Nanoscopy of Terahertz Polaritons in a van der Waals Cavity

Small, EarlyView.
This work introduces SYnchrotron SpaceTimE Mapping (SYSTEM), which captures real‐time evolution of polariton wave packets with ∼10 nm spatial and sub‐100 fs temporal resolution across an ultrabroadband 5 to 50 THz range. Here, SYSTEM directly visualizes the creation, interference, and decay of multiple high‐quality Fabry‐Pérot phonon polariton cavity ...
Lukas Wehmeier, Suheng Xu, Xinzhong Chen, Shang‐Jie Yu, Yuchen Lin, Zhenbing Dai, Heng Wang, Helen Yao, Jenny Hu, Christopher C. Homes, Eli Janzen, James H. Edgar, Xiaolin Zheng, Tony F. Heinz, Jonathan A. Fan, D.N. Basov, G.L. Carr, Mengkun Liu   +17 more
wiley   +1 more source

A Coaxial Cable Fabry-Perot Interferometer for Sensing Applications

Sensors, 2013
This paper reports a novel coaxial cable Fabry-Perot interferometer for sensing applications. The sensor is fabricated by drilling two holes half-way into a coaxial cable. The device physics was described.
Ming Luo, Hai Xiao, Jun Fan, Lei Hua, Tao Wang, Jie Huang   +5 more
doaj   +1 more source

In-fiber Fabry-Perot interferometer for strain and magnetic field sensing.

Optics Express, 2016
In this paper we discuss the results obtained with an in-fiber Fabry-Perot interferometer (FPI) used in strain and magnetic field (or force) sensing. The intrinsic FPI was constructed by splicing a small section of a capillary optical fiber between two ...
G. Costa, P. M. Gouvea, L. M. B. Soares, J. Pereira, F. Fávero, A. Braga, P. Palffy-Muhoray, A. C. Bruno, I. Carvalho   +8 more
semanticscholar   +1 more source

A Dual‐Frequency Sensitivity Model for Optical Fibre Ultrasonic Sensors in Power Transformer Partial Discharge Detection

High Voltage, EarlyView.
ABSTRACT The detection of partial discharges (PD) on the power transformer tank demands higher sensitivity in ultrasonic detection. To target the detection frequency band for sensor optimisation and enhance sensitivity, this paper presents a dual‐frequency sensitivity model for optical fibre ultrasonic sensors.
Sihan Wang, Jihang Sun, Jialin Wang, Bin Wei, Guoming Ma   +4 more
wiley   +1 more source

Enhancing Microwave Photonic Interrogation Accuracy for Fiber-Optic Temperature Sensors via Artificial Neural Network Integration

Optics
In this paper, an application of an artificial neural network algorithm is proposed to enhance the accuracy of temperature measurement using a fiber-optic sensor based on a Fabry–Perot interferometer (FPI). It is assumed that the interrogation of the FPI
Roman Makarov, Mohammed R. T. M. Qaid, Alaa N. Al Hussein, Bulat Valeev, Timur Agliullin, Vladimir Anfinogentov, Airat Sakhabutdinov   +6 more
doaj   +1 more source