Results 11 to 20 of about 33,191 (267)

Model of a multilayer coating for an artificial optical synapse

open access: yesКомпьютерная оптика, 2022
Optical characteristics of germanium telluride (GeTe) thin films in multilayer structures are calculated. A model of a multilayer optical coating with a four-level transmission coefficient is developed.
E.M. Pritotskii   +2 more
doaj   +1 more source

Transmittance Characterization of Objective Lenses Covering all Four Near Infrared Optical Windows and its Application to Three-Photon Microscopy Excited at 1820 nm

open access: yesIEEE Photonics Journal, 2018
Near infrared (NIR) excitation or emission is capable of deep-tissue penetration in various modalities of optical microscopy. Based on the transmittance characterization of biological tissue, such as brains, four NIR optical windows have been ...
Ke Wang   +5 more
doaj   +1 more source

Non‐linear optical limiting technology based on backward stimulated Brillouin scattering in grade‐index optical fibres

open access: yesElectronics Letters, 2021
An effective non‐linear optical limiting technology is proposed here based on backward stimulated Brillouin scattering in grade‐index optical fibres. The excellent non‐linear optical limiting performance is experimentally verified by using 0.5 and 1 m ...
Yixiang Xu   +3 more
doaj   +1 more source

Long-time optical transmittance measurements of silica nanofibers [PDF]

open access: yesEPJ Web of Conferences, 2020
We perform long-time measurements of the optical silica transmittance during several months in different environments and with different nanofiber lengths.
Bouhadida Maha, Lebrun Sylvie
doaj   +1 more source

Study Influence of Substrate Temperature on Optical Properties of CdS Thin Films Prepared by Chemical Spray pyrolysis

open access: yesIbn Al-Haitham Journal for Pure and Applied Sciences, 2019
This study aims to prepare Cadmium Sulphide (CdS) thin films using thermal Chemical Spray Pyrolysis (CSP) on glass of different temperatures substrate from cadmium nitrate solution.
Karrar Mahdi Saleh
doaj   +1 more source

Optimization design of broadband absorber for high optical transparency

open access: yesAIP Advances, 2023
A broadband absorber with high optical transparency is proposed and realized using an optimization-designed method. The absorber’s reflection, lossy, and dielectric layers are considered for obtaining high optical transparency.
Yuejun Zheng   +6 more
doaj   +1 more source

Sliding Water Droplet on Oil Impregnated Surface and Dust Particle Mitigation

open access: yesMolecules, 2021
Self-cleaning of surfaces becomes challenging for energy harvesting devices because of the requirements of high optical transmittance of device surfaces.
Saeed Bahatab   +7 more
doaj   +1 more source

Influence of Doping on Optical Properties of (CdS:Fe+3)Thin Films Prepared by Chemical Spray pyrolysis

open access: yesAl-Mustansiriyah Journal of Science, 2019
In the present work, undoped CdS and doped with iron CdS:Fe+3 thin films have been prepared by chemical spray pyrolysis method on glass substrate with different temperature from cadmium nitrate solution with constant thickness(450 ± 5 nm), and study the
karrar mahdi saleh
doaj   +1 more source

Plasmonic Strain Sensors Based on Au-TiO2 Thin Films on Flexible Substrates

open access: yesSensors, 2022
This study aimed at introducing thin films exhibiting the localized surface plasmon resonance (LSPR) phenomenon with a reversible optical response to repeated uniaxial strain.
Marco S. Rodrigues   +2 more
doaj   +1 more source

Determination of the complete set of optical parameters of micron-sized polycrystalline CH3NH3PbI3−xClx films from the oscillating transmittance and reflectance spectra

open access: yesMaterials Research Express, 2019
The complete set of optical parameters of micron-sized polycrystalline CH _3 NH _3 PbI _3−x Cl _x films deposited by the vacuum co-evaporation of lead iodide and methylammonium chloride is determined by analysis of oscillating optical transmittance and ...
Gevorkian Zhyrair   +5 more
doaj   +1 more source

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