Results 31 to 40 of about 653,357 (287)

Measuring circular phase-dichroism of chiral metasurface

open access: yesNanophotonics, 2019
The ability of chiral media to differentiate circularly polarized light is conventionally characterized by circular dichroism (CD) which is based on the difference in the absorption of the incident light for different polarizations.
Zhang Ranran   +5 more
doaj   +1 more source

Localized surface plasmon resonance property of bi-layer split ring-rods nanostructure

open access: yesResults in Physics, 2019
Metal nanostructures have been broadly applied in surface enhancement fluorescence, circular dichroism, filtering and many other aspects due to the unique optical properties.
Mingdi Zhang   +3 more
doaj   +1 more source

Magnetic circular dichroism versus orbital magnetization

open access: yesPhysical Review Research, 2020
The magnetic circular dichroism sum rule yields an extremely useful ground-state observable, which provides a quantitative measure of spontaneous time-reversal symmetry breaking (T-breaking) in a given material.
Raffaele Resta
doaj   +1 more source

Electrically controlled terahertz magneto-optical phenomena in continuous and patterned graphene

open access: yesNature Communications, 2017
Time reversal symmetry breaking gives rise to magnetic circular dichroism and Faraday rotation in graphene. The authors use terahertz magneto-electro-optical spectroscopy to demonstrate that electrostatic doping at a fixed magnetic field allows inversion
Jean-Marie Poumirol   +6 more
doaj   +1 more source

Micro-volume couette flow sample orientation for absorbance and fluorescence linear dichroism [PDF]

open access: yes, 2004
Linear dichroism (LD) can be used to study the alignment of absorbing chromophores within long molecules. In particular, Couette flow LD has been used to good effect in probing ligand binding to DNA and to fibrous proteins.
Marrington, Rachel   +8 more
core   +1 more source

Magnetic Circular Dichroism of Oxide Films: Study of Electronic, Magnetic and Charge States

open access: yesПриборы и методы измерений
Semiconductor materials based on ZnO and RE3+MnO3 oxides are considered as potential candidates for spintronics. This article presents the methodology and results of studying the effect of magnetic circular dichroism for Zn1-xCoxO, Zn1-x-yCoxAlyO and RE1-
Yu. E. Samoshkina, A. V. Chernichenko
doaj   +1 more source

Breaking the 200nm limit for routine flow linear dichroism measurements using UV synchrotron radiation [PDF]

open access: yes, 2008
The first synchrotron radiation flow linear dichroism spectra are reported. High-quality spectral data can be collected from 450 nm down to 180 nm in contrast to the practical cutoff of not, vert, similar200 nm on benchtop instruments.
Hicks, MR   +12 more
core   +1 more source

Dual-Retarder Mueller Polarimetry System for Extraction of Optical Properties of Serum Albumin Protein Media

open access: yesSensors, 2021
A dual liquid-crystal variable retarder Mueller polarimetry system incorporating a gold-based surface plasmon resonance prism coupler was proposed for extracting the optical properties of serum albumin protein media in the reflectance configuration.
Quoc-Hung Phan   +3 more
doaj   +1 more source

Understanding the Changes in the Circular Dichroism of Light Harvesting Complex II upon Varying Its Pigment Composition and Organization [PDF]

open access: yes, 2007
In this work we modeled the circular dichroism (CD) spectrum of LHCII, the main light harvesting antenna of photosystem II of higher plants. Excitonic calculations are performed for a monomeric subunit, taken from the crystal structure of trimeric LHCII ...
van Amerongen, H.   +14 more
core   +2 more sources

Snapshot circular dichroism measurements [PDF]

open access: yes, 2020
Two coherent waves carrying orthogonal polarizations do not interfere when they superpose, but an interference pattern is generated when the two waves share a common polarization.
Ossikovski, Razvigor   +2 more
core   +2 more sources

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