Results 61 to 70 of about 9,154 (200)
Frontiers in Physics, 2021 Mueller–Stokes polarimetry is emerging as a prominent noninvasive imaging technique to study the structural characteristics of an anisotropic medium. Spatial light modulator (SLM) is a programmable liquid crystal device (LCD), which is used to modulate ...
Vipin Tiwari +2 more
doaj +1 more source
Evidence of Fragmenting Dust Particles from Near-Simultaneous Optical and Near-IR Photometry and Polarimetry of Comet 73P/Schwassmann-Wachmann 3 [PDF]
, 2008 We report imaging polarimetry of segments B and C of the Jupiter-family Comet 73P/Schwassmann-Wachmann 3 in the I and H bandpasses at solar phase angles of approximately 35 and 85deg.
A'Hearn +27 more
core +3 more sources
Wide-Field Imaging and Polarimetry for the Biggest and Brightest in the 20GHz Southern Sky
, 2009 We present wide-field imaging and polarimetry at 20GHz of seven of the most extended, bright (Stot >= 0.50 Jy), high-frequency selected radio sources in the southern sky with declinations < -30 deg.
B. Partridge +93 more
core +1 more source
Near-infrared jet emission in the microquasar XTE J1550-564 [PDF]
, 2011 Context: Microquasars are accreting Galactic sources that are also observed to launch relativistic jets. A key signature of the ejection is non-thermal radio emission. The level of this jet component at high frequencies is still poorly constrained. Aims:
A. Raichoor +42 more
core +4 more sources
Reinforcement Learning Enabled Nanophotonic Devices
Laser &Photonics Reviews, EarlyView.A reinforcement learning algorithm is used to design photonic devices. The method creates metagratings and grating couplers that efficiently control both the direction and polarization of light. Further, a reinforcement learning approach is used to design in‐plane integrated photonic devices. This approach paves the way for advanced photonic components
Zi Wang +4 more
wiley +1 more source
The Linear Polarization of Sagittarius A* I. VLA Spectro-polarimetry at 4.8 and 8.4 GHz
, 1999 Synchrotron radiation from active galactic nuclei (AGN) is often highly polarized. We present a search for linear polarization with the Very Large Array (VLA) at 4.8 GHz and 8.4 GHz from the nearest AGN, Sagittarius A*.
Donald C. Backer +6 more
core +2 more sources
Laser &Photonics Reviews, EarlyView.Photonic neural networks are emerging as a powerful tool for analyzing light. The article reports a photonic deep random neural network that performs single‐shot low‐latency measurements of the state and degree of polarization with high accuracy. Using only a stack of glass diffusers on top of a small camera sensor, this neuromorphic polarization ...
Alessandro Petrini +2 more
wiley +1 more source
Characterization of Chiral Nanostructured Surfaces Made via Colloidal Lithography
Nanomaterials, 2023 Optically anisotropic materials were produced via colloidal lithography and characterized using scanning electronic microscopy (SEM), confocal microscopy, and polarimetry.
Sabine Portal +5 more
doaj +1 more source
Ocean Wind Study Using Simulated RCM Compact-Polarimetry SAR
Canadian Journal of Remote Sensing, 2015 Abstract. The incidence angle, wind speed, and wind direction dependence of compact polarimetry (CP) synthetic aperture radar (SAR) parameters are presented for open water. Selected CP parameters are related to C-band geophysical model function (CMOD) output. Wind speeds range between 0 and 24 m/s, and incidence angles range between 18 and 50°.
Torsten Geldsetzer +3 more
openaire +1 more source
The Polarizability Vector: A Polarimetric Observable for Characterizing Anisotropic Nanoparticles
Laser &Photonics Reviews, EarlyView.We find an overlooked observable in Nanophotonics that characterizes the optical response of anisotropic nanoparticles from simple polarimetry measurements. ABSTRACT The optical properties of anisotropic nanoparticles (NPs) are often characterized by two principal components of their polarizability tensor.
Jorge Olmos‐Trigo
wiley +1 more source