Coherent control of optical activity and optical anisotropy of thin metamaterials release_padkokoconbpvazbwhoy42boky

by Seyedmohammad A. Mousavi, Eric Plum, Jinhui Shi, Nikolay I. Zheludev

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The future fibre optic communications network will rely on photons as carriers of information, which may be stored in intensity, polarization or phase of light. However, processing of such optical information usually relies on electronics. Aiming to avoid the conversion between optical and electronic signals, modulation of light with light based on optical nonlinearity has become a major research field, but real integrated all-optical systems face thermal management and energy challenges. On the other hand, it has recently been demonstrated that the interaction of two coherent light beams on a thin, lossy, linear material can lead to large and ultrafast intensity modulation at arbitrarily low power resulting from coherent absorption. Here we demonstrate that birefringence and optical activity (linear and circular birefringence and dichroism) of functional materials can be coherently controlled by placing a thin material slab into a standing wave formed by the signal and control waves. Efficient control of the polarization azimuth and ellipticity of the signal wave with the coherent control wave has been demonstrated in proof-of-principle experiments in different chiral and anisotropic microwave metamaterials.
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Type  article
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Date   2013-12-02
Version   v1
Language   en ?
arXiv  1312.0414v1
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