Results 1 to 10 of about 90,044 (345)
Refractive index sensor with magnified resonant signal [PDF]
Scientific Reports, 2022 Herein, we theoretically suggest one-dimensional photonic crystal composed of polymer doped with quantum dots and porous silicon. The present simulated design is proposed as a refractive index biosensor structure based on parity-time symmetry.
Zaky A. Zaky +3 more
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A Self-Referenced Refractive Index Sensor Based on Gold Nanoislands [PDF]
Sensors, 2022 We report on a self-referenced refractive index optical sensor based on Au nanoislands. The device consists of a random distribution of Au nanoislands formed by dewetting on a planar SiO2/metal Fabry–Pérot cavity.
Carlos Angulo Barrios +2 more
doaj +2 more sources
An Inverted Honeycomb Plasmonic Lattice as an Efficient Refractive Index Sensor. [PDF]
Nanomaterials (Basel), 2021 We present an efficient refractive index sensor consisting of a heterostructure that contains an Au inverted honeycomb lattice as a main sensing element. Our design aims at maximizing the out-of-plane near-field distributions of the collective modes of the lattice mapping the sensor surroundings.
Rodríguez-Álvarez J +7 more
europepmc +10 more sources
Optofluidic refractive index sensor based on partial reflection [PDF]
Photonic Sensors, 2017 Abstract We demonstrate a novel optofluidic refractive index (RI) sensor with high sensitivity and wide dynamic range based on partial reflection. Benefited from the divergent incident light and the output fibers with different tilting angles, we have achieved highly sensitive RI sensing in a wide range from 1.33 to 1.37.
Lei Zhang +5 more
openalex +4 more sources
Ultrasensitive Silicon Photonic Refractive Index Sensor Based on Hybrid Double Slot Subwavelength Grating Microring Resonator [PDF]
SensorsSilicon photonic-based refractive index sensors are of great value in the detection of gases, biological and chemical substances. Among them, microring resonators are the most promising due to their compact size and narrow Lorentzian-shaped spectrum. The
Kaiwei Lu +4 more
doaj +2 more sources
A metal-insulator-metal waveguide-based plasmonic refractive index sensor for the detection of nanoplastics in water [PDF]
Scientific ReportsA metal-insulator-metal waveguide-based square-ring resonator plasmonic refractive index sensor is designed and optimized for achieving high sensitivity.
Shyamal Guchhait +3 more
doaj +2 more sources
Advanced Electromagnetics, 2022 In this paper, a photonic quasi-crystal fiber plasmonic refractive index sensor is numerically analyzed. The fiber core is infiltrated with six hypothetical liquids, which refractive indices of them vary from 1.44 to 1.49. The reason for filling the core
S. Shoar Ghaffari, S. Makouei
doaj +1 more source
A multimode fiber refractive index sensor [PDF]
2016 IEEE SENSORS, 2016 We present a simple refractive index sensor based on multimode fibers realized by stripping three different lengths of cladding. We theoretically explain and experimentally validate three mechanisms occurring in the multimode fiber for sensing surrounding refractive index.
Apriyanto, Haris +6 more
openaire +3 more sources
Sensors, 2023 In order to detect the refractive index (RI) of high refractive index materials such as trichlorobenzene and aniline in the near-infrared and mid-infrared spectra and expand the detection range of the refractive index, a surface plasmon resonance (SPR ...
Fengmin Wang, Yong Wei, Yanhong Han
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Optical Waveguide Refractive Index Sensor for Biochemical Sensing
Applied Sciences, 2023 This study describes the basic principles of optical waveguide refractive index sensing and the various design structures of refractive index sensors. These waveguides generate different optical resonances, which cause changes in the sensing refractive ...
Cheng Peng +7 more
doaj +1 more source