Results 261 to 270 of about 13,470 (297)

Pretransitional Layer Contraction at the Chiral Smectic A-to-Chiral Smectic C Phase Transition of a Chiral Nitroxide Radical

The Journal of Physical Chemistry B, 2013
We have designed and synthesized a new chiral paramagnetic liquid crystalline compound with a nitroxide radical moiety showing chiral smectic A (SmA*) and C (SmC*) phases. This compound shows pretransitional layer contraction prior to the SmA*-to-SmC* phase transition in the cooling run.
Yoshiaki, Uchida, Katsuaki, Suzuki, Rui, Tamura, Yoshio, Aoki, Hiroyuki, Nohira   +4 more
openaire   +2 more sources

Construction of Chiral Polar Crystals from Achiral Molecules by Stacking Control of Hydrogen-Bonded Layers Using Type II Halogen Bonds

Crystal Growth and Design, 2016
Crystals belonging to P1 and P21 space groups are fascinating research targets because of their potential applications in various fields by taking advantage of their chirality and polarity.
Toshiyuki Sasaki, Ichiro Hisaki, Seiji Tsuzuki   +2 more
exaly   +2 more sources

High-Performance Ultrathin Active Chiral Metamaterials

ACS Nano, 2018
Ultrathin active chiral metamaterials with dynamically tunable and responsive optical chirality enable new optical sensors, modulators, and switches.
Zilong Wu, Xiao-Dong Chen, Mingsong Wang   +2 more
exaly   +2 more sources

Diffraction and Spectral Characteristics of Chiral Layer

International Journal of Infrared and Millimeter Waves, 2005
Diffraction problems for the E- and H-polarized plane waves incident on a chiral magneto-dielectric layer are solved. The spectral characteristics (complex natural frequencies and oscillations) of the layer are investigated. A comparative analysis of diffraction and spectral characteristics is made.
Oleksandr P. Kusaykin, Anatoly Ye. Poyedynchuk   +1 more
openaire   +1 more source

Layered Chiral Spheres with Zero Backscattering

2019 Photonics & Electromagnetics Research Symposium - Fall (PIERS - Fall), 2019
In this paper, zero backscattering by chiral objects when illuminated by an electromagnetic plane wave is investigated. For this a bi-isotropic chiral sphere coated with chiral metamaterial embedded in free space is considered. Self-duality cases satisfy for zero backscattering.
S. A. Hassnain, M. J. Mughal, Q. A. Naqvi   +2 more
openaire   +1 more source

Induced Chirality through Electromagnetic Coupling between Chiral Molecular Layers and Plasmonic Nanostructures

Nano Letters, 2012
We report a new approach for creating chiral plasmonic nanomaterials. A previously unconsidered, far-field mechanism is utilized which enables chirality to be conveyed from a surrounding chiral molecular material to a plasmonic resonance of an achiral metallic nanostructure.
Zhiyuan Fan, Sharon M Kelly, Nikolaj Gadegaard   +2 more
exaly   +3 more sources

Diffraction by a screened chiral layer with a grating

International Conference on Mathematical Methods in Electromagnetic Theory, 2003
Polarization characteristics of the reflecting structure like a chiral layer combined with a dielectric layer, both in between a diffraction grating and a screen, are considered. Due to the analytical regularization procedure derived from the Riemann-Hilbert problem method, the correspondent diffraction vector problem is solved in the form available ...
S.B. Panin, A.Ye. Poyedinchuk
openaire   +1 more source

Filter characteristics of periodic chiral layers

Pure and Applied Optics: Journal of the European Optical Society Part A, 1994
Filter characteristics of an infinite structure consisting of periodic layers of chiral media are investigated and it is shown that with a proper choice of the ratio of chirality admittances of the two layers in a unit cell, the location of the centre of the pass and stop bands and their bandwidths can be significantly altered and controlled.
D K Kalluri, T C K Rao
openaire   +1 more source

Thin boundary layers of chiral smectics

Calculus of Variations and Partial Differential Equations, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

Layer-Scale Optical Chirality of Liquid-Crystalline Phases

Physical Review Letters, 2005
We present a model for the optical chirality of layered liquid-crystalline phases. The model demonstrates that uniform stacking of chiral layers can lead to significant collective optical rotation, even in the absence of a superlayer helix. We predict the optical rotation of the B2 phases of bent-core liquid crystals, which can have optical rotation as
L E, Hough, N A, Clark
openaire   +2 more sources