Results 1 to 10 of about 6,076 (160)
Journal of Astronomy and Space Sciences, 2012 This report describes the inception, development and extensive use over 30 years of elliptical polarimeters at the University of Pennsylvania. The initial Mark I polarimeter design utilized oriented retarder plates and a calcite Foster-Clarke prism as ...
Robert H. Koch +5 more
doaj +3 more sources
Polarimeter + Lidar–Derived Aerosol Particle Number Concentration
Frontiers in Remote Sensing, 2022 In this study, we propose a simple method to derive vertically resolved aerosol particle number concentration (Na) using combined polarimetric and lidar remote sensing observations.
Joseph S. Schlosser +24 more
doaj +1 more source
IEEE Access, 2020 This paper proposed a novel polarimeter for full-Stokes polarization imaging without using any kind of micro-polarizer array. The key components of the polarimeter are two grooved birefringent crystal plates with deviate fast axis, which are called ...
Naiting Gu +3 more
doaj +1 more source
Sensors, 2023 In a data-driven context, bionic polarization navigation requires a mass of skylight polarization pattern data with diversity, complete ground truth, and scene information.
Qianhui Li +6 more
doaj +1 more source
A cloud detection neural network for above-aircraft clouds using airborne cameras
Frontiers in Remote Sensing, 2023 For aerosol, cloud, land, and ocean remote sensing, the development of accurate cloud detection methods, or cloud masks, is extremely important. For airborne passive remotesensing, it is also important to identify when clouds are above the aircraft since
Joseph Nied +15 more
doaj +1 more source
Monitoring of Fibre Optic Links With a Machine Learning-Assisted Low-Cost Polarimeter
IEEE Access, 2020 The optical fibres widely used in telecommunication can be simultaneously used for (distributed) sensing or fibre network self-monitoring. In our work, we monitor changes in the fibre environment via monitoring changes in the state of light polarization ...
Martin Slapak +3 more
doaj +1 more source
Colors from polarizers and birefringent films [PDF]
Revista Brasileira de Ensino de Física, 2012 In this paper we analyze the interesting artwork of Austine W. Comarow that creates colored images from colorless birefringent films. This artwork consists of birefringent polymer films sandwiched between two polarizers, similar to a polariscope.
Fernando Fuzinatto Dall'Agnol +1 more
doaj +1 more source
Complete Mueller matrix imaging polarimeter for evaluating optical components for structured light [PDF]
EPJ Web of Conferences, 2023 We present a complete Mueller matrix (MM) imaging polarimeter based on liquid-crystal retarders and a pixelated polarization camera. The polarimeter instrument is first calibrated and optimized, and then applied for the precise characterization of ...
Nabadda Esther +5 more
doaj +1 more source
CONSTRUCTION OF A LOW-COST POLARIMETER FOR EDUCATIONAL PURPOSES
Química Nova, 2021 This paper describes the construction of a polarimeter for the identification of chemical substances. The device was built with low-cost materials, measures the phenomenon of optical activity and has educational applicability.
Claudio A. G. da Camara
doaj +1 more source
Optimal Orientation Angle Configuration of Polarizers Exists in a 3 × 3 Mueller Matrix Polarimeter
Photonics, 2023 A 3 × 3 Mueller matrix polarimeter, as one of the primary polarization measurement tools, has attracted intensive interest in various fields of polarization optics.
Hanyue Wei +3 more
doaj +1 more source