Results 161 to 170 of about 89,156 (196)

In-fiber interferometry sensors for refractive index

Applied Physics Reviews, 2023
Compact interferometers based on waveguiding structures have found countless applications in refractive index measurements, chemical sensing, as well as temperature and pressure measurements. The most common fiber devices are based on Mach–Zehnder interferometry and Michelson interferometry—two design concepts that can readily be implemented using ...
Deniz Aydin, Jack A. Barnes, Hans-Peter Loock   +2 more
openaire   +1 more source

Refractive index measurements by fiber Bragg grating sensor

Proceedings of IEEE Sensors 2003 (IEEE Cat. No.03CH37498), 2004
The numerical and experimental analysis on the use of thinned fiber Bragg gratings as refractive index sensors have been carried out. Wet chemical etching in a buffered hydrofluoric acid (HF) solution was used for sensor fabrication. Experimental characterization for an 8.5/spl mu/m etched cladding sensor is presented demonstrating resolutions of /spl ...
IADICICCO, Agostino, Cusano, A, Persiano, G. V, Cutolo, A, Bernini, R, Giordano, M.   +5 more
openaire   +3 more sources

Fiber Laser-Based Refractive Index Sensor

Optical Fiber Sensors, 2006
A fiber laser-based refractive index sensor is presented. The refractive index was measured by monitoring the delay time of the lasing from the pump excitation time. High refractive index sensitivity of 10-6 can be obtained.
Xiufeng Yang, Shaojun Luo, Zhihao Chen, Jun Hong Ng   +3 more
openaire   +1 more source

Optofluidic two-dimensional grating volume refractive index sensor

Applied Optics, 2016
We present an optofluidic reservoir with a two-dimensional grating for a lab-on-a-chip volume refractive index sensor. The observed diffraction pattern from the device resembles the analytically obtained fringe pattern. The change in the diffraction pattern has been monitored in the far-field for fluids with different refractive indices.
Anirban, Sarkar, B N, Shivakiran Bhaktha, Sugata Pratik, Khastgir   +2 more
openaire   +2 more sources

Phase interrogation birefringent-refraction sensor for refractive index variation measurements

Sensors and Actuators A: Physical, 2017
Abstract A birefringent-refraction (BR) sensor for measuring refractive indices of liquid solutions based on phase interrogation in a heterodyne interferometer is proposed. We theoretically investigate a comprehensive performance comparison between a surface plasmon resonance (SPR) sensor and the proposed BR sensor in terms of sensitivity and the ...
Ruey-Ching Twu, Chia-Wei Hsueh
openaire   +1 more source

A Novel Nanometeric Plasmonic Refractive Index Sensor

IEEE Transactions on Nanotechnology, 2010
A novel surface plasmon-polariton (SPP) refractive index sensor based on the coupling of a split waveguide mode with a cavity mode in the metal is proposed and studied in this paper. Both analytic and simulated results show that the resonant wavelength of the sensor has a linear relationship with the refractive index of materials under sensing.
null Xiao-Ping Jin, null Xu-Guang Huang, null Jin Tao, null Xian-Shi Lin, null Qin Zhang   +4 more
openaire   +1 more source

Refractive index sensor based on magnetoplasmonic crystals

Journal of Magnetism and Magnetic Materials, 2016
Abstract A magneto-optical surface plasmon resonance (MOSPR) sensor based on a magnetoplasmonic crystal trilayer structure is presented. The sensitivity of the MOSPR sensor is studied as a function of ferromagnetic layer thickness and at the different modes of operation.
A.A. Grunin, I.R. Mukha, A.V. Chetvertukhin, A.A. Fedyanin   +3 more
openaire   +1 more source

Multipoint optic refractive index sensor for liquids

2009 14th OptoElectronics and Communications Conference, 2009
The theoretical and experimental analysis of a multipoint fibre optic refractive index sensor is presented in this work. Experimental characterisation of the sensor shows excellent agreement with numerical analysis and a resolution in the order of 10−3.
Harpreet K. Bal, Fotios Sidiroglou, Stephen F. Collins, Zourab Brodzeli   +3 more
openaire   +1 more source

Optical fiber-tip microfluidic refractive-index sensors

CLEO Pacific Rim Conference, 2018
We present a miniature refractive-index sensor based on a fiber-top suspended mirror device. An optical 3D $\mu$ -printing technology was demonstrated to fabricate ultrathin suspended diaphragms on the end face of optical fiber for microfluidic sensing.
Mian Yao, Xia Ouyang, A. Ping Zhang, Hwa-Yaw Tam, P. K. A. Wai   +4 more
openaire   +1 more source

Refractive index sensor based on fiber laser

Microwave and Optical Technology Letters, 2007
AbstractA refractive index sensor based on the transient behavior of the fiber laser is presented. The refractive index was measured by monitoring the delay time of the lasing from the pump excitation time. High refractive index sensitivity of 10−6 can be obtained. © 2007 Wiley Periodicals, Inc.
Xiufeng Yang, Shaojun Luo, Zhihao Chen, Jun Hong Ng   +3 more
openaire   +1 more source