Results 11 to 20 of about 400,943 (326)

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

THE REFRACTIVE INDEX OF WATER. [PDF]

open access: greenJournal of the American Chemical Society, 1911
n ...
Gregory Paul Baxter   +2 more
openalex   +5 more sources

Refraction in Media with a Negative Refractive Index [PDF]

open access: yesPhysical Review Letters, 2003
5 pages, 4 figures, submitted to Phys.
Stavroula Foteinopoulou   +2 more
openaire   +4 more sources

Refractive index of rubber [PDF]

open access: yesJournal of Research of the National Bureau of Standards, 1935
Abstract This paper presents an exploratory study of the refractive index of rubber. Previous observations on the refractive index of rubber have been, for the most part, restricted to transparent samples. In the present investigation, however, by using reflected light rather than light at grazing incidence, it was found possible to ...
Archibald T. McPherson   +1 more
openaire   +2 more sources

Highly Sensitive D-Shaped Plasmonic Refractive Index Sensor for a Broad Range of Refractive Index Detection

open access: yesIEEE Photonics Journal, 2021
In this paper, an extremely sensitive Photonic Crystal Fiber (PCF) based Surface Plasmon Resonance (SPR) sensor having D-shaped structure has been proposed.
Emranul Haque   +5 more
doaj   +1 more source

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 ...
Hang Qu   +2 more
core   +1 more source

Terahertz Computed Tomography of High-Refractive-Index Objects Based on Refractive Index Matching

open access: yesIEEE Photonics Journal, 2018
Terahertz (THz) computed tomography (CT) is a promising technique to obtain the internal information of objects due to its properties of nonionizing and high penetration of nonpolar objects. However, THz CT is hindered by the strong refractive effect and
Linyu Chen   +9 more
doaj   +1 more source

Uniform refraction in negative refractive index materials [PDF]

open access: yesJournal of the Optical Society of America A, 2015
We study the problem of constructing an optical surface separating two homogeneous, isotropic media, one of which has a negative refractive index. In doing so, we develop a vector form of Snell's law, which is used to study surfaces possessing a certain uniform refraction property, both in the near and far field cases. In the near field problem, unlike
Stachura, Eric, Gutirrez, Cristian E.
openaire   +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   +1 more source

Fermat's principle with complex refractive indices and local light-ray rotation [PDF]

open access: yes, 2009
We describe local light-ray rotation in terms of complex refractive indices. We show that Fermat's principle holds, and we derive an extended Snell's law.
Alasdair C. Hamilton   +7 more
core   +2 more sources

Home - About - Disclaimer - Privacy