scholarly journals Dynamically adjustable induced THz circular dichroism and biosensing application of symmetric silicon-graphene-metal composite nanostructures

2021 ◽  
Author(s):  
yongkai wang ◽  
Qijing Wang ◽  
Qianying Wang ◽  
Yingying Wang ◽  
Zhiduo Li ◽  
...  
Keyword(s):  
Circular Dichroism ◽  
Metal Composite ◽  
Composite Nanostructures ◽  
Circular Dichroïsm

High-efficiency and tunable circular dichroism in chiral graphene metasurface

2021 ◽  
Author(s):  
Ying Cui ◽  
Xiaosai Wang ◽  
Huan Jiang ◽  
Yongyuan Jiang
Keyword(s):  
Circular Dichroism ◽  
High Efficiency ◽  
Localized Surface Plasmon ◽  
Selective Absorption ◽  
Metal Composite ◽  
Surface Plasmon Resonances ◽  
Localized Surface Plasmon Resonances ◽  
Polarization Control ◽  
Composite Microstructure ◽  
Circular Dichroïsm

Abstract Circular dichroism (CD) response is extremely important for dynamic polarization control, chiral molecular sensing and imaging, etc. Here, we numerically demonstrated high-efficiency and tunable CD using a symmetry broken graphene-dielectric-metal composite microstructure. By introducing slot patterns in graphene ribbons, the metasurface exhibits giant spin-selective absorption for circularly polarized (CP) wave excitations. The maximum CD reaches 0.87 at 2.78 THz, which originates from the localized surface plasmon resonances (LSPRs) in patterned graphene. Besides, the operating frequency and magnitude of CD are dynamically manipulated by gating graphene's Fermi energies. The proposed chiral graphene metasurface with high- efficiency and tunable capability paves a way to the design of active CD metasurfaces.

Effects of electric field coupling on the circular dichroism of composite nanostructures

2020 ◽  
Vol 22 (5) ◽  
pp. 055002
Author(s):  
Ying Li ◽  
Zhimin Jing ◽  
Yu Bai ◽  
Hamad Ullah ◽  
Zhongyue Zhang
Keyword(s):  
Circular Dichroism ◽  
Electric Field ◽  
Composite Nanostructures ◽  
Field Coupling ◽  
Circular Dichroïsm

Characterization of Tamm-Horsfall Urinary Glycoprotein

1973 ◽  
Vol 31 ◽  
pp. 420-421
Author(s):  
John P. Robinson ◽  
J. David Puett
Keyword(s):  
Electron Microscopy ◽  
Circular Dichroism ◽  
Secondary Structure ◽  
Quaternary Structure ◽  
Normal Adult ◽  
Morphological Properties ◽  
Adult Males ◽  
Circular Dichroïsm ◽  
Urinary Glycoprotein

Much work has been reported on the chemical, physical and morphological properties of urinary Tamm-Horsfall glycoprotein (THG). Although it was once reported that cystic fibrotic (CF) individuals had a defective THG, more recent data indicate that THG and CF-THG are similar if not identical.No studies on the conformational aspects have been reported on this glycoprotein using circular dichroism (CD). We examined the secondary structure of THG and derivatives under various conditions and have correlated these results with quaternary structure using electron microscopy.THG was prepared from normal adult males and CF-THG from a 16-year old CF female by the method of Tamm and Horsfall. CF female by the method of Tamm and Horsfall.

Circular dichroism spectra of adsorbed dye-aggregates

1968 ◽  
Vol 65 ◽  
pp. 146-151 ◽  
Author(s):  
G. Scheibe ◽  
O. Wörz ◽  
F. Haimerl ◽  
W. Seiffert ◽  
J. Winkler
Keyword(s):  
Circular Dichroism ◽  
Circular Dichroism Spectra ◽  
Circular Dichroïsm

ON THE THEORY OF THREE PHOTONIC LINEAR CIRCULAR DICHROISM IN A HOLE-CONDUCTION SEMICONDUCTOR

2020 ◽  
pp. 73-76
Author(s):  
V. R. Rasulov ◽  
R. Y. Rasulov ◽  
I. M. Eshboltaev ◽  
R. R. Sultonov ◽  
B. Z. Polvonov
Keyword(s):  
Circular Dichroism ◽  
Hole Conduction ◽  
Circular Dichroïsm

Fan-shaped mid-infrared chiral metamaterials based on indium tin oxide and their circular dichroism

2020 ◽  
Vol 13 (4) ◽  
pp. 722-727
Author(s):  
ZHU Ye-xin ◽  
◽  
◽  
LI Ya-nan ◽  
SHI Wei-jie ◽  
...  
Keyword(s):  
Circular Dichroism ◽  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Mid Infrared ◽  
Chiral Metamaterials ◽  
Circular Dichroïsm
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