Results 21 to 30 of about 3,294,049 (263)

Fabrication of perfect plasmonic absorbers for blue and near-ultraviolet lights using double-layer wire-grid structures

Journal of the European Optical Society-Rapid Publications, 2021
This study proposes using double-layer wire-grid structures to create narrow-band, perfect plasmonic absorbers, which depend on polarization, for the short-wavelength visible and near-ultraviolet regions of the electromagnetic spectrum.
Atsushi Motogaito, Ryoga Tanaka, Kazumasa Hiramatsu   +2 more
doaj   +1 more source

Vacuum ultraviolet absorption in silica samples

, 1999
Optical absorption analysis in the ultraviolet and vacuum ultraviolet region from 4.0 to 9.0 eV has been performed on dierent silica materials. We analysed natural and synthetic silica samples, both as grown and irradiated with dierent irradiations ...
ANEDDA, ALBERTO, CARBONARO, CARLO MARIA, Serpi A., CORPINO, RICCARDO, Corpino, R., Anedda, A., Carbonaro, C. M, Serpi, A.   +7 more
core   +2 more sources

Bat eyes have ultraviolet-sensitive cone photoreceptors [PDF]

, 2009
Mammalian retinae have rod photoreceptors for night vision and cone photoreceptors for daylight and colour vision. For colour discrimination, most mammals possess two cone populations with two visual pigments (opsins) that have absorption maxima at short
Josef Ammermüller, Leo Peichl, Ammermüller Josef, Knop Gabriel C., Peichl, Leo, Glösmann, Martin, Brigitte Müller, Müller Brigitte, Hagemann Cornelia, Knop, Gabriel C., Glösmann, M., Hagemann, Cornelia, Knop, G., Ammermüller, J., Glösmann Martin, Müller, B., Hagemann, C., Martin Glösmann, Ammermüller, Josef, Müller, Brigitte, Peichl Leo, Gabriel C Knop, Cornelia Hagemann, Peichl, L.   +23 more
core   +2 more sources

Gold Nanoparticles Formation Mechanism by Photochemical Synthesis

Chemical Engineering Transactions, 2018
In this research, the effect of tetrachloroauric acid concentration, irradiation time and silver nitrate concentration on the morphology and radiation absorption of gold nanoparticles obtained by photochemical synthesis was determined. Absorption spectra
J.A. Sanabria-Cala, G.R. Conde Rodriguez, G.H. Gauthier, L.O. Ladeira, D.A. Laverde Catano, D.Y. Pena Ballesteros, D.R. Merchan Arenas   +6 more
doaj   +1 more source

New stabilizer Cellulose Nano Rods-Zinc Oxide (CNR-ZnO) material for nanocomposite synthesis and anti-bacterial applications

Al-Mustansiriyah Journal of Science, 2020
Zinc oxide (ZnO) nanorods were fabricated using Cellulose Nano Rods (CNR) as a new stabilizer material. Synthesized of ZnO-CNR nanocomposites, with a molar ratio of ZnO to CNR (1/2g) were prepared in distilled water. The nanocomposites were distinguished
Wisam Jafer Aziz, Randa Kamel Hussain, Ibraheem Abbas Ibraheem   +2 more
doaj   +1 more source

Finite Temperature Ultraviolet-Visible Dielectric Functions of Tantalum Pentoxide: A Combined Spectroscopic Ellipsometry and First-Principles Study

Photonics, 2022
Tantalum pentoxide (Ta2O5) has demonstrated promising applications in gate dielectrics and microwave communication devices with its intrinsically high dielectric constant and low dielectric loss.
Wenjie Zhang, Zhaohui Zeng, Tao Cheng, Tianhao Fei, Zhiwei Fu, Xiaoyan Liu, Jingyi Zhang, Jia-Yue Yang   +7 more
doaj   +1 more source

Graphene-based metasurface solar absorber design with absorption prediction using machine learning

Scientific Reports, 2022
Solar absorber is required to absorb most of the energy of the solar spectral irradiance. We propose a graphene-based solar absorber design with two different metasurfaces to improve this absorption and increase the efficiency of the solar absorber.
Juveriya Parmar, Shobhit K. Patel, Vijay Katkar   +2 more
doaj   +1 more source

Review Paper: Investigation of Linear and Nonlinear Behaviors of Silver Oxide Nanoparticles In Graphene Oxide Solution [PDF]

فیزیک کاربردی ایران, 2023
In this research, linear and non-linear optical properties of silver oxide nanoparticles in graphene oxide medium have been investigated. First, graphene oxide is prepared by the improved method of Hammers.
Saeed Maymanat Abady, Hamid Nadjari, Reza Rasuli   +2 more
doaj   +1 more source

Room-Temperature Transient Absorption in KDP Crystal Under Exposure to Nanosecond Laser at 355 nm

IEEE Photonics Journal, 2018
Defects in high-purity optical materials produced by high-power laser irradiation have attracted much attention, which could modify material properties and cause degradation or even laser damage of optical components.
F. Geng, Q. Xu, F. R. Wang, H. D. Xia, J. B. Wen, J. Huang, X. D. Jiang   +6 more
doaj   +1 more source

Absorption cross section simulation: a preliminary study of ultraviolet absorption spectroscopy for ozone gas measurement [PDF]

, 2013
Preliminary study to measure gaseous ozone concentration using ultraviolet absorption spectroscopy is presented. Firstly, background of ozone is introduced.
Ibrahim, Mohd. Haniff, Azmi, Asrul Izam, Tay, Marcus Ching En, David, Michael, Yaacob, Maslina, Salim, Mohd. Rashidi, Ngajikin, Nor Hafizah, Ibrahim, Mohd Haniff, En Marcus, Tay Ching, Salim, Mohd Rashidi   +9 more
core   +1 more source