Results 1 to 10 of about 4,189,988 (288)

THE REFRACTIVE INDEX OF WATER. [PDF]

open access: greenJournal of the American Chemical Society, 1911
n ...
Gregory Paul Baxter   +2 more
openalex   +4 more sources

Highly Sensitive Dual-Core PCF Based Plasmonic Refractive Index Sensor for Low Refractive Index Detection

open access: yesIEEE Photonics Journal, 2019
A highly sensitive surface plasmon resonance (SPR) sensor on a dual-core photonic crystal fiber (PCF) for low refractive index (RI) detection is presented in this paper. Plasmonic material silver (Ag) is deposited outside of the fiber structure to detect
Emranul Haque   +5 more
doaj   +2 more sources

Negative Refractive Index in Optics of Metal-Dielectric Composites [PDF]

open access: yes, 2005
Specially designed metal-dielectric composites can have a negative refractive index in the optical range. Specifically, it is shown that arrays of single and paired nanorods can provide such negative refraction. For pairs of metal rods, a negative refractive index has been observed at 1.5 micrometer.
Alexander V. Kildishev   +26 more
arxiv   +3 more sources

An Evaluation of Moderate-Refractive-Index Nanoantennas for Enhancing the Photoluminescence Signal of Quantum Dots [PDF]

open access: yesNanomaterials
The use of nanostructures to enhance the emission of single-photon sources has attracted some attention in the last decade due to the development of quantum technologies.
Rafael Ramos Uña   +2 more
doaj   +2 more sources

Liquid-core low-refractive-index-contrast Bragg fiber sensor [PDF]

open access: yes, 2011
We propose and experimentally demonstrate a low-refractive-index-contrast hollow-core Bragg fiber sensor for liquid analyte refractive index detection. The sensor operates using a resonant sensing principle- when the refractive index of a liquid analyte in the fiber core changes, the resonant confinement of the fiber guided mode will also change ...
Hang Qu   +2 more
arxiv   +4 more sources

High Refractive Index Metamaterials by Using Higher Order Modes Resonances of Hollow Cylindrical Nanostructure in Visible Region

open access: yesIEEE Access, 2019
In order to design optical metamaterials to surpass the limitation of unnaturally high refractive index in visible range, we propose the nanocylinders nanostructure with hexagonal close-packed arrangement to precisely control the electric and magnetic ...
Xufeng Jing   +4 more
doaj   +2 more sources

A right-handed isotropic medium with a negative refractive index [PDF]

open access: yesPhys. Rev. Lett. 95, 067402 (2005), 2004
The sign of the refractive index of any medium is soley determined by the requirement that the propagation of an electromagnetic wave obeys Einstein causality. Our analysis shows that this requirement predicts that the real part of the refractive index may be negative in an isotropic medium even if the electric permittivity and the magnetic ...
E. C. Titchmarsh   +8 more
arxiv   +3 more sources

Modification of Low Refractive Index Polycarbonate for High Refractive Index Applications [PDF]

open access: yesInternational Journal of Polymer Science, 2009
Polycarbonates and polythiourethanes are the most popular materials in use today, for optical applications. Polycarbonates are of two types which fall in the category of low refractive index and medium refractive index.
Gunjan Suri   +3 more
doaj   +3 more sources

Refractive index of dense materials [PDF]

open access: yesarXiv, 2017
We show that applying the Lorentz-Lorenz transformation to the refractive index of metals, semiconductors and insulators allows for a less empirical modeling of this refractive index.
arxiv   +5 more sources

Design of Ultra-Narrow Band Graphene Refractive Index Sensor

open access: yesItalian National Conference on Sensors, 2022
The paper proposes an ultra-narrow band graphene refractive index sensor, consisting of a patterned graphene layer on the top, a dielectric layer of SiO2 in the middle, and a bottom Au layer. The absorption sensor achieves the absorption efficiency of 99.
Qianyi Shangguan   +9 more
semanticscholar   +1 more source

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