Results 41 to 50 of about 1,434,741 (177)

Broadband spectral shaping using nematic liquid crystal

Results in Physics, 2019
We demonstrate what is, to our knowledge, the first implementation of nematic liquid crystal (LC) for spectral shaping of broadband light fields. A LC cell of several microns thickness is placed between a polarizer and an analyzer.
Bhaskar Kanseri, Gyaprasad, Ateesh Kumar Rathi   +2 more
doaj   +1 more source

Polarization Measurements and Evaluation Based on Multidimensional Polarization Indices Applied in Analyzing Atmospheric Particulates

Applied Sciences, 2021
Online identification and characterization of suspended aerosols can provide a scientific basis for understanding aerosol transformations, quantitatively evaluating the impacts on air quality, public health, and the source apportionment of different ...
Riwei Liao, Wei Guo, Nan Zeng, Jun Guo, Yonghong He, Huige Di, Dengxin Hua, Hui Ma   +7 more
doaj   +1 more source

Solutions to the dynamical equation of polarization-mode dispersion and polarization-dependent losses [PDF]

, 2000
We study the evolution of optical signals in single-mode optical fibers in the presence of polarization-mode dispersion and polarization-dependent losses.
Li, Yi, Yariv, Amnon
core   +1 more source

Design of Hollow Core Bragg Fibers for a Compact Fluorescence Sensing Scheme

IEEE Photonics Journal, 2017
We propose a compact fluorescence sensing scheme based on hollow core Bragg fibers (HCBFs) that simultaneously serve as a sample cell, a collector, and a delivery channel for the desired fluorescence, as well as a filter for the residual excitation light
Liang Shang, Kunjie Zheng
doaj   +1 more source

Evaluating Tissue Mechanical Properties Using Quantitative Mueller Matrix Polarimetry and Neural Network

Applied Sciences, 2022
Evaluation of the mechanical properties of biological tissues has always been an important issue in the field of biomedicine. The traditional method for mechanical properties measurement is to perform in vitro tissue deformation experiments.
Changjiang Mi, Conghui Shao, Honghui He, Chao He, Hui Ma   +4 more
doaj   +1 more source

Power Spectra of CMB Polarization by Scattering in Clusters

, 2009
Mapping CMB polarization is an essential ingredient of current cosmological research. Particularly challenging is the measurement of an extremely weak B-mode polarization that can potentially yield unique insight on inflation.
Audit, Bardeen, Baumann, Bennett, Carroll, Challinor, Chandrasekhar, Cooray, Dunkley, Gibilisco, Hinshaw, Hu, Hu, Hu, Itoh, Itoh, Kamionkowski, Komatsu, Komatsu, Komatsu, Lavaux, Lewis, Ohno, Portsmouth, Sadeh, Sazonov, Seljak, Shaw, Shimon, Shimon, Silk, Sunyaev, Sunyaev, Weinberg, Zaldarriaga, Zaldarriaga   +35 more
core   +1 more source

Polarization-resolved sensing with tilted fiber Bragg gratings: theory and limits of detection [PDF]

, 2015
Polarization based sensing with tilted fiber Bragg grating (TFBG) sensors is analysed theoretically by two alternative approaches. The first method is based on tracking the grating transmission for two orthogonal states of linear polarized light that are
Albert, Jacques, Bialiayeu, Aliaksandr, Ianoul, Anatoli   +2 more
core   +2 more sources

Optical linear polarization in ultra cool dwarfs: A tool to probe dust in the ultra cool dwarf atmospheres

, 2009
Aims.Recent studies have detected linear polarization in L dwarfs in the optical I band. Theoretical models have been developed to explain this polarization. These models predict higher polarization at shorter wavelengths.
Ackerman, Allard, Bailer-Jones, Basri, Berger, Burrows, Burrows, Burrows, Chabrier, Chandrasekhar, Chiu, Cooper, Cruz, E. L. Martín, Goldman, Golimowski, H. Bouy, Helling, Helling, Kirkpatrick, Knapp, M. R. Zapatero Osorio, Marley, Ménard, N. Phan-Bao, Patten, R. Tata, Reid, Reiners, S. Sengupta, Schmidt, Sengupta, Sengupta, Sengupta, Tsuji, Tsuji, Tsuji, Woitke, Woitke, Zapatero Osorio   +39 more
core   +1 more source

Quantum cascade lasers with an integrated polarization mode converter [PDF]

, 2012
We discuss the design, fabrication and characterization of waveguide polarization mode converters for quantum cascade lasers operating at 4.6 μm. We have fabricated a quantum cascade laser with integrated polarization mode converter that emits light of ...
Dhirhe, D., Holmes, B.M., Hutchings, D.C., Ironside, C.N., Slight, T.J.   +4 more
core   +2 more sources

Growth and Property Investigations of Two Organic–Inorganic Hybrid Molecular Crystals with High Thermal Stability: 4-Iodoanilinium perchlorate 18-crown-6 and 4-Iodoanilinium Borofluorate 18-crown-6

Crystals, 2019
Two new organic–inorganic hybrid molecular single crystals, 4-Iodoanilinium perchlorate 18-crown-6 (1) and 4-Iodoanilinium borofluorate 18-crown-6 (2), with large sizes and high thermal stability were successfully synthesized by solution method ...
Lihui Zhang, Tiantian Kang, Fanghua Zhao, Duanliang Wang, Chuanying Shen, Jiyang Wang   +5 more
doaj   +1 more source