نتایج جستجو برای: linear polarization

تعداد نتایج: 543404  

2006
Lynn M. Carter Donald B. Campbell Bruce A. Campbell

[1] We compare Arecibo dual-polarization radar image data for Venus to Magellan images and emissivity data to investigate the physical properties of volcanic deposits. Radar waves can easily penetrate smooth mantling layers such as ash, aeolian and craterderived deposits. If a circularly polarized radar wave refracts into a surface that is smooth at wavelength scales, the vertical component of ...

The inhibitive effect of apricot gum AG on mild steel in 0.5 M phosphoric acid solution was investigated by potentiodynamic polarization, electrochemical impedance spectroscopy EIS, linear polarization resistance and electrochemical noise EN techniques. The inhibition efficiency increased with increasing AG concentration up to a certain value and decreased with increasing temperature. Polarizat...

Journal: :Journal of Astronomy and Space Sciences 2011

Journal: :Mathematical Inequalities & Applications 2006

2009
J. F. C. WARDLE

We report the results of parsec-scale, multi-frequency VLBA observations of the core region of 3C 279 in Stokes I, linear polarization, and circular polarization. These full polarization spectra are modeled by radiative transfer simulations to constrain the magnetic field and particle properties of the parsec-scale jet in 3C 279. We find that the polarization properties of the core region, incl...

2016
Jianhua Cui Cheng Huang Wenbo Pan Mingbo Pu Yinghui Guo Xiangang Luo

Polarization control of electromagnetic wave is very important in many fields. Here, we propose an active meta-mirror to dynamically manipulate electromagnetic polarization state at a broad band. This meta-mirror is composed of a double-layered metallic pattern backed by a metallic flat plate, and the active elements of PIN diodes are integrated into the meta-atom to control the reflection phas...

Journal: :Optics express 2013
P Ginzburg F J Rodríguez Fortuño G A Wurtz W Dickson A Murphy F Morgan R J Pollard I Iorsh A Atrashchenko P A Belov Y S Kivshar A Nevet G Ankonina M Orenstein A V Zayats

One of the basic functionalities of photonic devices is the ability to manipulate the polarization state of light. Polarization components are usually implemented using the retardation effect in natural birefringent crystals and, thus, have a bulky design. Here, we have demonstrated the polarization manipulation of light by employing a thin subwavelength slab of metamaterial with an extremely a...

1995
James Clark Emanuele Trucco H.-F. Cheung

We use polarization analysis in triangulation-based laser scanners to disambiguate the true laser stripe from spurious inter-reflections caused by holes and concavities on metal surfaces. Stripe candidates are discriminated by projecting linearly polarised laser light and measuring the polarization state of the linearly polarized component of the observed stripe candidates. Initial experimental...

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