Results 141 to 150 of about 4,159,704 (407)

Quaternion Approach to the Measurement of the Local Birefringence Distribution in Optical Fibers

IEEE Photonics Journal, 2015
A method to structure the Jones quaternion utilizing Pauli matrices is proposed, improving the quaternion theory of polarization optics. It is proved that the Stokes quaternion is the double product of the Jones quaternion and its Hermitian transpose and
Lanlan Liu, Chongqing Wu, Chao Shang, Zhengyong Li, Jian Wang   +4 more
doaj   +1 more source

Hindered rotators by off-site ions in solids: Optical conductivity by sombrero potentials [PDF]

arXiv, 2007
We consider the optical conductivity of carriers scattered by local sombrero potentials associated with hindered planar rotators in solids. Examples for hindered rotators are provided by off-center substitutional Li ions in colored alkali halides and off-site apical oxygens O(A) in layered perovskites.
arxiv  

Dispersion-free broadband optical polarization rotation based on helix photonic metamaterials.

Optics Express, 2015
We present a helix photonic metamaterial that exhibits nondispersive optical rotation in a broad passband at optical frequencies. Several features, including zero dispersion, zero ellipticity, and high transmission, can be simultaneously achieved in the ...
Yu-Ray Li, Y. Hung
semanticscholar   +1 more source

The edge visualization metric: Quantifying the improvement of lung SBRT target definition with 4D CBCT

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose Four‐dimensional cone‐beam CT (4D CBCT) incorporates oversampling of 3D data to reconstruct multi‐phase CBCT data sets representing distinct phases of the breathing cycle based on a diaphragmatic correlate of respiratory motion. Motion artifacts and blurring can be reduced relative to three‐dimensional cone‐beam (3D CBCT), allowing ...
Colton Baley, Sam Andersen, Clark Anderson, Shraddha Dalwadi, Daniel L. Saenz   +4 more
wiley   +1 more source

The Preparation of Hyaluronic Acid and the Determination of the Viscosity and Optical Rotation. [PDF]

, 1953
C. E. Jensen, Enzo Boeri, Roger Bonnichsen, Jörgine Stene Sörensen, Nils Andreas Sörensen   +4 more
openalex   +1 more source

Stereochemistry of Chiral 2-Substituted Chromanes: Twist of the Dihydropyran Ring and Specific Optical Rotation. [PDF]

Molecules, 2023
Yang BB, Gao F, Yang YD, Wang R, Li X, Li L.   +5 more
europepmc   +1 more source

Quantitative quality control of 3D water tank using image analysis

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Background and objective Accurate beam data acquisition using three‐dimensional (3D) water tanks is essential for beam commissioning and quality control (QC) in clinical radiation therapy. This study introduces a novel method for quantitative QC of the system, utilizing MV images and webcam videos.
Yuki Tanimoto, Kohei Sugimoto, Kazunobu Koshi, Akira Hiroshige, Shohei Yoshida, Yoshiki Fujita, Atsuki Nakahira, Daiki Nakanishi, Hirofumi Honda, Masataka Oita   +9 more
wiley   +1 more source

Enhanced Faraday rotation and magneto-optical figure of merit in gold grating/graphene/silicon hybrid magneto-plasmonic devices

APL Photonics, 2018
Graphene is a promising THz magneto-optical material. However, high Faraday rotation is only achievable at a low THz frequency range in single layer graphene.
Jun Qin, Shuang Xia, Ke Jia, Chuangtang Wang, Tingting Tang, Haipeng Lu, Li Zhang, Peiheng Zhou, Bo Peng, Longjiang Deng, Lei Bi   +10 more
doaj   +1 more source

Optical Rotation of the α-Helix in Synthetic Polypeptides [PDF]

, 1956
A. Elliott, W. E. Hanby, B. R. Malcolm
openalex   +1 more source

Aggregation-Induced Polarization (AIP): Optical Rotation Amplification and Adjustment of Chiral Aggregates of Folding Oligomers and Polymers. [PDF]

Front Chem, 2022
Tang Y, Zhang S, Xu T, Yuan Q, Wang JY, Jin S, Wang Y, Pan J, Griffin I, Chen D, Li G.   +10 more
europepmc   +1 more source