Results 31 to 40 of about 4,159,704 (407)

Fast Rotation Matching Method for SAR and Optical Images

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
The rotation matching between synthetic aperture radar (SAR) and optical images is essential for their registration. In this article, we introduce a novel fast rotation matching method for SAR and optical images.
Xinchen Li   +6 more
doaj   +1 more source

Chirality analysis of helical polymers

open access: yesChemistry Teacher International, 2020
Optically active macromolecules, having a preferred- or single-handed helical conformation, play important roles in polymeric materials and in life. This article presents how helical polymers can be assessed from a view of chirality.
Nakano Tamaki   +2 more
doaj   +1 more source

Solution‐Processed Faraday Rotators Using Single Crystal Lead Halide Perovskites

open access: yesAdvanced Science, 2020
Lead halide perovskites (LHPs) have become a promising alternative for a wide range of optoelectronic devices, thanks to their solution‐processability and impressive optical and electrical properties. More recently, LHPs have been investigated in magneto‐
Randy P Sabatini   +9 more
doaj   +1 more source

Robust and high‐speed rotation control in optical tweezers by using polarization synthesis based on heterodyne interference

open access: yesOpto-Electronic Advances, 2020
The rotation control of particles in optical tweezers is often subject to the spin or orbit angular momentum induced optical torque, which is susceptible to the mechanical and morphological properties of individual particle.
Liu Wei   +4 more
doaj   +1 more source

Comparative Analysis of Physical and Chemical Properties of Differently Obtained Zn—Methionine Chelate with Proved Antibiofilm Properties (Part II)

open access: yesPharmaceutics, 2023
The previously demonstrated activity of aqueous solutions of methionine and zinc salts against biofilms of uropathogenic bacteria prompted us to investigate the structure and properties of zinc methionine complex obtained from such solutions.
Alla V. Marukhlenko   +4 more
doaj   +1 more source

Quantum Rotation Sensing with Dual Sagnac Interferometers in an Atom-Optical Waveguide. [PDF]

open access: yesPhysical Review Letters, 2019
We describe a Sagnac interferometer suitable for rotation sensing, implemented using an atomic Bose-Einstein condensate confined in a harmonic magnetic trap.
E. Moan   +6 more
semanticscholar   +1 more source

Second-Harmonic Generation Optical Rotation Solely Attributable to Chirality in Plasmonic Metasurfaces.

open access: yesACS Nano, 2018
Chiral plasmonic nanostructures, those lacking mirror symmetry, can be designed to manipulate the polarization of incident light resulting in chiroptical (chiral optical) effects such as circular dichroism (CD) and optical rotation (OR).
J. Collins   +4 more
semanticscholar   +1 more source

Bioactive Metabolites from Mangrove Endophytic Fungus Aspergillus sp. 16-5B

open access: yesMarine Drugs, 2015
Chemical investigation of the endophytic fungus Aspergillus sp. 16-5B cultured on Czapek’s medium led to the isolation of four new metabolites, aspergifuranone (1), isocoumarin derivatives (±) 2 and (±) 3, and (R)-3-demethylpurpurester A (4), together ...
Yayue Liu   +7 more
doaj   +1 more source

Structure and Symmetry in Coherent Perfect Polarization Rotation [PDF]

open access: yesPhysical Review A 91, 013845 (2015), 2014
Theoretical investigations of different routes to coherent perfect polarization rotation illustrate its phenomenological connection with coherent perfect absorption. Studying systems with broken parity, layering, combined Faraday rotation and optical activity, or a rotator-loaded optical cavity highlights their similarity and suggests new approaches to
arxiv   +1 more source

Determination of the Absolute Configurations of Chiral Drugs Using Chiroptical Spectroscopy

open access: yesMolecules, 2016
Chiroptical spectroscopy has emerged as a promising tool for the determination of absolute configurations and predominant conformations of chiral molecules in academic laboratories.
Prasad L. Polavarapu
doaj   +1 more source

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