Articles with "circular polarization" as a keyword



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Uncovering the Circular Polarization Potential of Chiral Photonic Cellulose Films for Photonic Applications.

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Published in 2018 at "Advanced materials"

DOI: 10.1002/adma.201705948

Abstract: Circularly polarized light (CPL) is central to photonic technologies. A key challenge lies in developing a general route for generation of CPL with tailored chiroptical activity using low-cost raw materials suitable for scale-up. This study… read more here.

Keywords: cellulose films; cpl; circular polarization; photonic applications ... See more keywords
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Morpho‐Butterfly‐Inspired Patterning of Helical Photonic Structures for Circular‐Polarization‐Sensitive, Wide‐Angle Diffuse Reflection

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Published in 2017 at "Advanced Optical Materials"

DOI: 10.1002/adom.201601071

Abstract: Cholesteric liquid crystals are known to exhibit a circular-polarization selective Bragg reflection band over a wavelength region determined by their reflective index and pitch. In a planar device where the molecules are aligned unidirectionally at… read more here.

Keywords: reflection; butterfly; circular polarization; diffuse reflection ... See more keywords
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Circular Polarization Discrimination Enhanced by Anisotropic Media

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Published in 2020 at "Advanced Optical Materials"

DOI: 10.1002/adom.201901800

Abstract: Circular polarization discrimination is desired for use in many optoelectronic applications. By integrating asymmetric metamaterials with active materials, circular‐polarization‐discriminative light–matter interaction can be realized. Nevertheless, the circular polarization extinction ratio for absorption of the active… read more here.

Keywords: polarization discrimination; polarization extinction; extinction ratio; polarization ... See more keywords
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Microstrip Gasper‐Peano fractal antenna for circular polarization applications

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Published in 2019 at "Microwave and Optical Technology Letters"

DOI: 10.1002/mop.31780

Abstract: In this article, a slot array antenna with circular polarization is presented. The structure is designed based on GasperPeano fractal as a feed line. By use of the Minimum mean square error method, the array… read more here.

Keywords: antenna circular; microstrip gasper; polarization; radiation ... See more keywords
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A dual‐band linear‐to‐circular polarization converter with robustness under oblique incidences

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Published in 2020 at "Microwave and Optical Technology Letters"

DOI: 10.1002/mop.32598

Abstract: A dual‐band linear‐to‐circular polarization converter is proposed and experimentally demonstrated in this work. The structure consists of four identical meander‐line layers separated by air. The converter transforms y‐polarized waves into left hand circular‐polarized waves in… read more here.

Keywords: converter; band; linear circular; circular polarization ... See more keywords
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Chiroptically Active Metallic Nanohelices with Helical Anisotropy.

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Published in 2017 at "Small"

DOI: 10.1002/smll.201701883

Abstract: Manipulation of circular polarization states of light in the ultraviolet-visible-near infrared range, which cannot be operated using natural materials, is of fundamental interest derived from a wide range of chirality-associated optical, chemical and biological applications.… read more here.

Keywords: metallic nanohelices; helical anisotropy; metallic nhs; circular polarization ... See more keywords
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The Low-Frequency Solar Corona in Circular Polarization

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Published in 2019 at "Solar Physics"

DOI: 10.1007/s11207-019-1502-y

Abstract: We present spectropolarimetric imaging observations of the solar corona at low frequencies (80 - 240 MHz) using the Murchison Widefield Array (MWA). These images are the first of their kind, and we introduce an algorithm… read more here.

Keywords: frequency solar; polarization; circular polarization; corona circular ... See more keywords
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Mini-RF S-band observation of Ohm and Stevinus craters using circular polarization ratio and m-chi decomposition techniques

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Published in 2020 at "Journal of Earth System Science"

DOI: 10.1007/s12040-020-1370-8

Abstract: The aim of the study was to observe two lunar impact craters of Copernican age, Ohm (18.4°N, 113.5°W) and Stevinus (32.5°S, 54.2°E) under microwave radar data of Miniature Radio Frequency (Mini-RF), an instrument onboard Lunar… read more here.

Keywords: stevinus craters; chi decomposition; stevinus; circular polarization ... See more keywords
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Y-shaped graphene-based antenna with switchable circular polarization

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Published in 2020 at "Optik"

DOI: 10.1016/j.ijleo.2019.163321

Abstract: Abstract In this paper, an antenna with the ability to provide the right- and left-hand circular polarization in the THz band is presented. The central frequency of the antenna is set at 0.45 THz according to… read more here.

Keywords: graphene based; chemical potential; based antenna; shaped graphene ... See more keywords
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Circular Polarization Conversion in Single Plasmonic Spherical Particles

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Published in 2022 at "Nano Letters"

DOI: 10.1021/acs.nanolett.1c03848

Abstract: Temporal and spectral behaviors of plasmons determine their ability to enhance the characteristics of metamaterials tailored to a wide range of applications, including electric-field enhancement, hot-electron injection, sensing, as well as polarization and angular momentum… read more here.

Keywords: conversion single; conversion; single plasmonic; polarization conversion ... See more keywords
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Laser-Patterned Submicrometer Bi2Se3-WS2 Pixels with Tunable Circular Polarization at Room Temperature.

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Published in 2022 at "ACS applied materials & interfaces"

DOI: 10.1021/acsami.1c24205

Abstract: Characterizing and manipulating the circular polarization of light is central to numerous emerging technologies, including spintronics and quantum computing. Separately, monolayer tungsten disulfide (WS2) is a versatile material that has demonstrated promise in a variety… read more here.

Keywords: laser patterned; bi2se3 ws2; circular polarization; polarization ... See more keywords