Results 81 to 90 of about 534,558 (401)

High-performance flexible surface-enhanced Raman scattering substrate based on the particle-in-multiscale 3D structure

open access: yesNanophotonics, 2021
Recently, multiscale three-dimensional (3D) structures consisting of micrometer-scale structure and nanometer-scale structure have received some attention from scientists in the field of surface-enhanced Raman scattering (SERS).
Zhou Yaning   +10 more
doaj   +1 more source

Dual-interface gratings for broadband absorption enhancement in thin-film solar cells [PDF]

open access: yes, 2012
We numerically study complex dual-interface grating systems to enhance absorption efficiency in thin-film silicon solar cells. We combine a plasmonic grating at the back side of the solar cell with a dielectric grating at the front side of the cell.
Abass, Aimi   +4 more
core   +2 more sources

Spider Silk: Rapid, Bottom‐Up Self‐Assembly of MaSp1 into Hierarchically Structured Fibers Through Biomimetic Processing

open access: yesAdvanced Functional Materials, EarlyView.
Spider dragline silk has extraordinary mechanical properties due to the underlying hierarchical organization of the fiber across multiple length scales. A biomimetic platform for MaSp1 is developed, the main protein component of dragline silk, and thereby elucidates the parameters governing its rapid self‐assembly from soluble protein into complex ...
Ali D. Malay   +3 more
wiley   +1 more source

Analysis of the bandwidth of resonant spectra for tilted fiber grating [PDF]

open access: yesOptik 125(2014)4488-4490, 2019
Based on coupled mode equations, the formula of null null bandwidth for tilted fiber grating is deduced in this paper. Numerical simulations and theoretical analysis of the effects of the tilt angle on bandwidth and maximum reflectivity are performed. Furthermore, under the maximum reflection of 95%, the relation of bandwidth with modulation amplitude ...
arxiv   +1 more source

Birefringent optofluidic gratings

open access: yesOptics Express, 2020
A set of parallel microfluidic channels behaving as a diffraction grating operating in the Raman-Nath regime has been fabricated and studied. The diffraction efficiency of such structure can be tuned by selecting a liquid with a particular refractive index and/or optical anisotropy.
Sergio Calixto   +4 more
openaire   +4 more sources

Subwavelength index engineered surface grating coupler with sub-decibel efficiency for 220-nm silicon-on-insulator waveguides.

open access: yesOptics Express, 2015
Surface grating couplers are fundamental components in chip-based photonic devices to couple light between photonic integrated circuits and optical fibers.
D. Benedikovic   +10 more
semanticscholar   +1 more source

Internal Temperature Evolution Metrology and Analytics in Li‐Ion Cells

open access: yesAdvanced Functional Materials, EarlyView.
This study investigates the non‐linear evolution of internal temperatures across diverse operating conditions, highlighting the disparities between internal and external measurements and the resulting thermal asymmetries. The coupled thermo‐electrochemical modeling framework provides a comprehensive analysis of various heat generation modes, examining ...
Anuththara S. J. Alujjage   +5 more
wiley   +1 more source

Dosimetric study of the medical Agility grating system in radiotherapy of orbital lymphoma

open access: yesPrecision Radiation Oncology, 2019
Objective The spatial location of the orbital lymphoma target area is special; improving the quality of the orbital lymphoma plan and protecting the eye are important focus areas for doctors and physicists.
Shi Huifeng   +4 more
doaj   +1 more source

Analytically Regularized Evaluation of the Coupling of Planar Concentric Conducting Rings

open access: yesApplied Sciences, 2022
In this paper, an accurate and efficient method for the analysis of coupled perfectly conducting annular rings is presented. The problem is first formulated as a couple of Integral Equation (IEs) in the Vector Hankel Transform (VHT) domain, considered as
Fulvio Schettino
doaj   +1 more source

Multidimensional quasiballistic thermal transport in transient grating spectroscopy [PDF]

open access: yes, 2015
Transient grating spectroscopy has emerged as a useful technique to study thermal phonon transport because of its ability to perform thermal measurements over length scales comparable to phonon mean free paths (MFPs).
Minnich, Austin J.
core   +3 more sources

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