3D Archimedean spiral metasurface for enhances broadband optical chirality

2021 ◽  
Author(s):  
Hsin-Yu Kuo ◽  
Ming Lun Tseng ◽  
Zhan-Hong Lin ◽  
Yu-Jung Lu ◽  
Yuan Luo ◽  
...  
Keyword(s):  
Archimedean Spiral ◽  
Optical Chirality

scholarly journals Optical Chirality Determined from Mueller Matrices

2021 ◽  
Vol 11 (15) ◽  
pp. 6742
Author(s):  
Hans Arwin ◽  
Stefan Schoeche ◽  
James Hilfiker ◽  
Mattias Hartveit ◽  
Kenneth Järrendahl ◽  
...  
Keyword(s):  
Circular Dichroism ◽  
Constitutive Relations ◽  
Mueller Matrix ◽  
Optical Path ◽  
Electromagnetic Modeling ◽  
Structural Effects ◽  
Polarization Effects ◽  
Optical Chirality ◽  
Mueller Matrices ◽  
Circular Dichroïsm

Optical chirality, in terms of circular birefringence and circular dichroism, is described by its electromagnetic and magnetoelectric material tensors, and the corresponding optical activity contributes to the Mueller matrix. Here, spectroscopic ellipsometry in the spectral range 210–1690 nm is used to address chiral phenomena by measuring Mueller matrices in transmission. Three approaches to determine chirality parameters are discussed. In the first approach, applicable in the absence of linear polarization effects, circular birefringence and circular dichroism are evaluated directly from elements of a Mueller matrix. In the second method, differential decomposition is employed, which allows for the unique separation of chirality parameters from linear anisotropic parameters as well as from depolarization provided that the sample is homogeneous along the optical path. Finally, electromagnetic modeling using the Tellegen constitutive relations is presented. The last method also allows structural effects to be included. The three methods to quantify optical chirality are demonstrated for selected materials, including sugar solutions, α-quartz, liquid crystals, beetle cuticle, and films of cellulose nanocrystals.

Cavity-backed Archimedean spiral antenna with strip absorber

2008 ◽  
Vol 2 (7) ◽  
pp. 725-730 ◽  
Author(s):  
H. Nakano ◽  
H. Oyanagi ◽  
J. Yamauchi ◽  
S. Sasaki
Keyword(s):  
Spiral Antenna ◽  
Archimedean Spiral

Archimedean spiral wrinkles on a film-substrate system induced by torsion

2014 ◽  
Vol 104 (3) ◽  
pp. 031910 ◽  
Author(s):  
Jia-Wen Wang ◽  
Yan-Ping Cao ◽  
Xi-Qiao Feng
Keyword(s):  
Archimedean Spiral ◽  
Film Substrate

Optical Chirality Sensing with a Stereodynamic Aluminum Biphenolate Probe

2018 ◽  
Vol 84 (8) ◽  
pp. 4639-4645 ◽  
Author(s):  
Zeus A. De los Santos ◽  
Leo A. Joyce ◽  
Edward C. Sherer ◽  
Christopher J. Welch ◽  
Christian Wolf
Keyword(s):  
Optical Chirality

scholarly journals Optical Chirality Sensing with an Auxiliary‐Free Earth‐Abundant Cobalt Probe

2019 ◽  
Vol 58 (4) ◽  
pp. 1198-1202 ◽  
Author(s):  
Zeus A. De los Santos ◽  
Ciarán C. Lynch ◽  
Christian Wolf
Keyword(s):  
Optical Chirality ◽  
Earth Abundant

scholarly journals Electrodynamics of planar Archimedean spiral resonator

2015 ◽  
Vol 118 (3) ◽  
pp. 033902 ◽  
Author(s):  
N. Maleeva ◽  
A. Averkin ◽  
N. N. Abramov ◽  
M. V. Fistul ◽  
A. Karpov ◽  
...  
Keyword(s):  
Archimedean Spiral

scholarly journals SAR and thermal response effects of a two-arm Archimedean spiral coil in a magnetic induction sensor on a human head

2015 ◽  
Vol 26 (s1) ◽  
pp. S405-S412
Author(s):  
Ziyi Zhang ◽  
Peiguo Liu ◽  
Dongming Zhou ◽  
Liang Zhang ◽  
Liang Ding
Keyword(s):  
Magnetic Induction ◽  
Thermal Response ◽  
Human Head ◽  
Archimedean Spiral ◽  
Spiral Coil ◽  
Induction Sensor
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