Results 11 to 20 of about 44,543 (314)
Linking Distributed and Integrated Fiber‐Optic Sensing
Geophysical Research Letters, 2022 AbstractDistributed Acoustic Sensing (DAS) has become a popular method of observing seismic wavefields: backscattered pulses of light reveal strains or strain rates at any location along a fiber‐optic cable. In contrast, a few newer systems transmit light through a cable and collect integrated phase delays over the entire cable, such as the Microwave ...
Daniel C. Bowden +9 more
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Research, 2023 High-performance photodetectors hold promising potential in optical communication and imaging systems. However, conventional counterparts are suffering narrow detection range, high power consumption, and poor polarization sensitivity.
Zhigang He +10 more
doaj +1 more source
Design and Fabrication of Fiber-Optic Nanoprobes for Optical Sensing [PDF]
Nanoscale Research Letters, 2010 AbstractThis paper describes the design and fabrication of fiber-optic nanoprobes developed for optical detection in single living cells. It is critical to fabricate probes with well-controlled nanoapertures for optimized spatial resolution and optical transmission.
Zhang Yan, Dhawan Anuj, Vo-Dinh Tuan
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Magnetic Sensing with Ferrofluid and Fiber Optic Connectors [PDF]
Sensors, 2014 A simple, cost effective and sensitive fiber optic magnetic sensor fabricated with ferrofluid and commercially available fiber optic components is described in this paper. The system uses a ferrofluid infiltrated extrinsic Fabry-Perot interferometer (EFPI) interrogated with an infrared wavelength spectrometer to measure magnetic flux density.
Daniel Homa, Gary Pickrell
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Optical Fiber Sensing Using Quantum Dots [PDF]
Sensors, 2007 Recent advances in the application of semiconductor nanocrystals, or quantumdots, as biochemical sensors are reviewed. Quantum dots have unique optical properties thatmake them promising alternatives to traditional dyes in many luminescence basedbioanalytical techniques.
Pedro Jorge +4 more
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Optical fiber sensing based on reflection laser spectroscopy [PDF]
, 2010 An overview on high-resolution and fast interrogation of optical-fiber sensors relying on laser reflection spectroscopy is given. Fiber Bragg-gratings (FBGs) and FBG resonators built in fibers of different types are used for strain, temperature and ...
De Natale, Paolo +34 more
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Fiber-optic chemical sensing with Langmuir-Blodgett overlay waveguides [PDF]
, 1999 Fiber-optic chemical sensing has been demonstrated with a side-polished single- mode optical fiber, evanescently coupled to chemically sensitive Langmuir- Blodgett (LB) overlay waveguides.
Tatam, Ralph P. +3 more
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“Fiber-Optic Cavities for Physical and Chemical Sensing” [PDF]
The Open Optics Journal, 2013 Fiber-optic resonators can be used as ideal mechanical probes and chemical sensors owing to their unique sensitivity to static and dynamic strain applied to the fiber as well as to optical absorption or refractive index changes in the surrounding medium when the evanescent or the internal light field is exposed. The intrinsic properties of high-finesse
Saverio Avino +2 more
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IEEE Photonics Journal, 2017 A magnetic field sensor based on the magnetic-field-induced nanoparticle assembly effect in microcapillary whispering gallery mode (WGM) ring resonator is proposed and experimentally demonstrated.
Zhe Yu +6 more
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Design of Environmental Biosensor Based on Photonic Crystal Fiber with Bends Using Finite Element Method [PDF]
, 2015 In this paper, a biosensor based on photonic crystal fiber (PCF) is proposed and designed using Full-Vectorial Finite Element Method (FVFEM). The proposed PCF sensor consists of three concentric circles surrounding the core.
Akowuah, Emmanuel Kofi +9 more
core +1 more source