Results 11 to 20 of about 423,461 (345)

Refractiveindex.info database of optical constants [PDF]

open access: yesScientific Data
We introduce the refractiveindex.info database, a comprehensive open-source repository containing optical constants for a wide array of materials, and describe in detail the underlying dataset.
Mikhail N. Polyanskiy
doaj   +4 more sources

Neural network-based analysis algorithm on Mueller matrix data of spectroscopic ellipsometry for the structure evaluation of nanogratings with various optical constants [PDF]

open access: goldNanophotonics
Accurate and fast characterization of nanostructures using spectroscopic ellipsometry (SE) is required in both industrial and research fields. However, conventional methods used in SE data analysis often face challenges in balancing accuracy and speed ...
Jung Juwon   +6 more
doaj   +4 more sources

Realistic Silver Optical Constants for Plasmonics. [PDF]

open access: yesSci Rep, 2016
AbstractSilver remains the preferred conductor for optical and near-infrared plasmonics. Many high-profile studies focus exclusively on performance simulation in such applications. Almost invariably, these use silver optical data either from Palik’s 1985 handbook or, more frequently, an earlier Johnson and Christy (J&C) tabulation.
Jiang Y, Pillai S, Green MA.
europepmc   +3 more sources

Measurement of infrared optical constants with visible photons

open access: yesNew Journal of Physics, 2018
We demonstrate a new scheme for infrared spectroscopy with visible light sources and detectors. The technique relies on the nonlinear interference of correlated photons, produced via spontaneous parametric down conversion in a nonlinear crystal.
Anna Paterova   +4 more
doaj   +2 more sources

Optical constants of refractory oxides at high temperatures [PDF]

open access: green, 2013
Many cosmic dust species, among them refractory oxides, form at temperatures higher than 300 K. Nevertheless, most astrophysical studies are based on the room-temperature optical constants of solids, such as corundum and spinel. A more realistic approach
S. Zeidler, Th. Posch, H. Mutschke
openalex   +3 more sources

Optical Parameters of Atomically Heterogeneous Systems Created by Plasma Based Low Energy Ion Beams: Wavelength Dependence and Effective Medium Model

open access: yesFrontiers in Physics, 2021
The article presents the irradiation effects of low energy (∼0.5 keV) inert gaseous Argon ion beams on optical constants [real (n) and imaginary (k) parts of the refractive index], dielectric constants, skin depth, and optical conductivity of copper (Cu),
Krishn Pal Singh   +1 more
doaj   +1 more source

Hybrid artificial neural networks and analytical model for prediction of optical constants and bandgap energy of 3D nanonetwork silicon structures

open access: yesOpto-Electronic Advances, 2021
The aim of this study is to develop a reliable method to determine optical constants for 3D-nanonetwork Si thin films manufactured using a pulsed-laser ablation technique that can be applied to other materials synthesized by this technique. An analytical
Shreeniket Joshi, Amirkianoosh Kiani
doaj   +1 more source

Study of the Optical Constants of the PMMA/PC Blends [PDF]

open access: yesEngineering and Technology Journal, 2011
The aim of the present work is concerned with the study of the optical constants of the PMMA/PC blend at different concentrations. The samples are casted as films from the PMMA and PC homopolymers and blend.
Marwa. R. F, Nahida. J. H
doaj   +1 more source

γ-Irradiation Effect on the Optical Constants, and the Electric Loss of PM-355 [PDF]

open access: yesEngineering and Technology Journal, 2014
The optical reflection, transmission, and UV/VIS- absorption spectra had been recorded in the wavelength(200-500nm) for PM-355 before and after irradiation with γ-ray irradiation by using 60Co-dose within range of(30-160Mrad) at normal conditions.
Nahida J.H Al-Mashhada
doaj   +1 more source

Parabolic Multimode Fiber under Bending: Analytical Calculation of the Second-order Corrections to the Propagation Constants

open access: yesSt. Petersburg Polytechnical University Journal: Physics and Mathematics, 2021
The aim of the work is to study bent multimode fiber with parabolic refractive index profile. For that, second-order corrections to propagation constants of longitudinally perturbed arbitrary dielectric waveguide’s modes were found using perturbation ...
Markvart Aleksandr   +2 more
doaj   +1 more source

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