Results 51 to 60 of about 89,156 (196)

Integrated collinear refractive index sensor with Ge PIN photodiodes

open access: yes, 2018
Refractive index sensing is a highly sensitive and label-free detection method for molecular binding events. Commercial implementations of biosensing concepts based on plasmon resonances typically require significant external instrumentation such as ...
Augel, Lion   +6 more
core   +2 more sources

Plasmon Interferometers for High-Throughput Sensing [PDF]

open access: yes, 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.
core   +1 more source

Dual-Core Photonic Crystal Fiber Plasmonic Refractive Index Sensor: A Numerical Analysis

open access: yesPhotonic Sensors, 2018
A numerical analysis on dual core photonic crystal fiber (DC-PCF) based surface plasmon resonance (SPR) refractive index sensor is presented. The guiding parameters and required sensing performances are examined with finite element method (FEM) based ...
Alok Kumar Paul   +2 more
doaj   +1 more source

Sensitivity Enhancement of a Concave Shaped Optical Fiber Refractive Index Sensor Covered with Multiple Au Nanowires [PDF]

open access: yes, 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
core   +1 more source

Analysis of the water-soluble vitamins based on MIM waveguide structure and Fano resonance

open access: yesHeliyon, 2023
Fano resonance (FR) is extremely sensitive to extremely small changes in the surrounding environment. We first propose an optical nano-refractive index sensor based on Fano resonance, which is applied to the identification of water-soluble vitamins B1 ...
Yuan Shangbo, Jun Zhu, Jinguo Yin
doaj   +1 more source

Photonic crystal fiber half-taper probe based refractometer [PDF]

open access: yes, 2014
A compact singlemode - photonic crystal fiber - singlemode fiber tip (SPST) refractive index sensor is demonstrated in this paper. A CO2 laser cleaving technique is utilised to provide a clean-cut fiber tip which is then coated by a layer of gold to ...
Bo, Lin   +8 more
core   +2 more sources

Exploiting Brillouin Sensors for Refractive Index Measurements [PDF]

open access: yesProceedings of the 5th International Symposium on Sensor Science (I3S 2017), 2017
In this paper, we investigate the capability of a Brillouin Optical Time-Domain Analysis [...]
Aldo Minardo   +3 more
openaire   +2 more sources

Design of Transmission-Type Refractive Index Sensor, Based on Silica Planar Lightwave Circuit Using Combination of Refractive Angle and Phase Measurements

open access: yesSensors, 2019
A transmission-type refractive index sensor, based on planar lightwave circuit (PLC) technology is proposed. In the proposed structure, we introduce a combination of coarse measurements, using the dependence of the angle of refraction and fine ...
Koichi Maru
doaj   +1 more source

Wide-Range Optical CMOS-Based Diagnostics [PDF]

open access: yes, 2017
Colorimetric, chemiluminescence and refractive index based diagnostics are some of the most important sensing techniques in biomedical science and clinical medicine.
Al-Rawhani, Mohammed A.   +6 more
core   +1 more source

Nano Application of Oil Concentration Detection Using Double-Tooth Ring Plasma Sensing

open access: yesApplied Nano
Based on the unique properties of optical Fano resonance and plasmonic-waveguide coupling systems, this paper explores a novel refractive index concentration sensor structure.
Lei Li   +6 more
doaj   +1 more source

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