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Meta-Atoms Alter Light Polarization

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A new metamaterial that is deformed by light while altering its polarization could become a tool for developing photonic circuits. A team from Australian National University’s Research School of Physics and Engineering (RSPE) made this new finding while developing metamaterials. These were formed from a pattern of tiny metal shapes called meta-atoms, which were then used to achieve optical rotation. “Our material can put a twist into light — that is, rotate its polarization — orders of magnitude more strongly than natural materials,” said lead...Read full article

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    Published: July 2014
    Glossary
    nonlinear polarization
    Nonlinear polarization refers to the phenomenon where the polarization of a material responds nonlinearly to an applied electric field. In linear systems, the polarization of a material is directly proportional to the strength of the electric field. However, in nonlinear systems, the relationship between polarization and electric field is nonlinear, leading to a variety of nonlinear optical effects. The nonlinear response of a material arises from interactions between electromagnetic...
    asymmetricAustraliaAustralian National Universityelectromagneticlenseslight polarizationLight SourcesMaterialsmeta-atomsmetamaterialsmirrorsnonlinear polarizationOpticsResearch & Technologyself-oscillationTech PulseResearch School of Physics and EngineeringRSPEMingkai Liumagnetoelasticchiral symmetryDavid Powell

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