Results 51 to 60 of about 303,599 (379)
Optics Express, 2021 To balance the tradeoff between the high sensitivity and large dynamic range, a fiber optic refractive index sensor based on the anti-resonant reflecting optical waveguide (ARROW) and mode interference has been proposed and experimentally demonstrated. A
Yongjun Wang, Ran Gao, X. Xin
semanticscholar +1 more source
Use of polyethylene glycol coatings for optical fibre humidity sensing [PDF]
, 2008 Humidity induced change in the refractive index and thickness of the polyethylene glycol (PEG) coatings are in situ investigated for a range from 10 to 95%, using an optical waveguide spectroscopic technique.
B. D. Gupta +31 more
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Diffractive optics approach towards subwavelength pixels
, 2018 Pixel size in cameras and other refractive imaging devices is typically limited by the free-space diffraction. However, a vast majority of semiconductor-based detectors are based on materials with substantially high refractive index.
Fan, Bo +2 more
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Plasmon Interferometers for High-Throughput Sensing [PDF]
, 2012 Cataloged from PDF version of article.In this letter, we demonstrate a refractive index sensor based on a subwavelength plasmon interferometer. Illumination of an atilt subwavelength slit-grove pair on a metal surface with monochromatic light generates ...
Kocabas, C., Yavas, O.
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A D-Shaped Photonic Crystal Fiber Refractive Index Sensor Coated with Graphene and Zinc Oxide. [PDF]
Sensors (Basel), 2020 A surface plasmon resonance (SPR) sensor based on a D-shaped photonic crystal fiber (PCF) with an uncomplicated structure is proposed to detect the change of refractive index of liquid analytes, and numerical simulation is carried out by the finite ...
Liang H, Shen T, Feng Y, Liu H, Han W.
europepmc +2 more sources
Refractive Index Sensing by Using Mechanically Induced Long-Period Grating
IEEE Photonics Journal, 2012 In this paper, a refractive index sensor using a mechanically induced long-period grating is proposed and experimentally demonstrated. The sensing element is based on a composite optical waveguide, which is made of a single-mode fiber, a Teflon-cannula ...
Xiaojun Zhou +3 more
doaj +1 more source
Sensitivity Enhancement of a Concave Shaped Optical Fiber Refractive Index Sensor Covered with Multiple Au Nanowires [PDF]
, 2019 In the present paper, a new kind of concave shaped refractive index sensor (CSRIS) exploiting localized surface plasmon resonance (LSPR) is proposed and numerically optimized.
Kumari, S. +3 more
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Beilstein Journal of Nanotechnology, 2016 In this paper we report the design and experimental realisation of a novel refractive index sensor based on coupling between three nanoscale stripe waveguides. The sensor is highly compact and designed to operate at a single wavelength.
Chamanei Perera +5 more
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Nanofluidic Refractive-Index Sensors Formed by Nanocavity Resonators in Metals without Plasmons
Sensors, 2011 Nanocavity resonators in metals acting as nanofluidic refractive-index sensors were analyzed theoretically. With the illumination of transverse electric polarized light, the proposed refractive index sensor structure acts as a pure electromagnetic ...
Shih-Pin Tsai +3 more
doaj +1 more source
Microring resonator refractive index sensor with integrated spectrometer [PDF]
, 2015 We present a SOI ring based sensor read-out system. The novelty of the architecture lies in the capability to sense the shifts of multiple peaks simultaneously with an integrated AWG ...
Bogaerts, Wim +2 more
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