Switching the Optical Chirality in Magneto-Plasmonic Metasurfaces Using Applied Magnetic Fields.

@article{Qin2019SwitchingTO,
  title={Switching the Optical Chirality in Magneto-Plasmonic Metasurfaces Using Applied Magnetic Fields.},
  author={Jun Qin and Longjiang Deng and Tongtong Kang and Lixia Nie and Hua Yu Feng and Huili Wang and Run Yang and Xiao Liang and Tingting Tang and Jian Shen and Chaoyang Li and Hanbin Wang and Yi Luo and Gaspar Armelles and Lei Bi},
  journal={ACS nano},
  year={2019}
}
Chiral nanophotonic devices are promising candidates for chiral molecules sensing, polarization diverse nanophotonics and display technologies. Active chiral nanophotonic devices, where the optical chirality can be controlled by an external stimulus has triggered great research interest. However, efficient modulation of the optical chirality has been challenging. Here, we demonstrate switching of the extrinsic chirality by applied magnetic fields in a magneto-plasmonic metasurface device based… 
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45 References

Analysis and magnetic modulation of chiro-optical properties in anisotropic chiral and magneto-chiral plasmonic systems.

This fabrication and characterization procedure, assigning the different optical functionalities to different building blocks, and decomposing the different contributions to the global optical response, allows an easy and rational identification of the different phenomena exhibited by the magneto-chiral system.

Interaction Effects between Magnetic and Chiral Building Blocks: A New Route for Tunable Magneto-chiral Plasmonic Structures

We propose a novel active magneto-chiral system consisting of a separated Au/Co multilayer with perpendicular magnetic anisotropy and plasmonic chiral oligomers. The electromagnetic interaction…

Giant intrinsic chiro-optical activity in planar dielectric nanostructures

The challenge of realizing strong intrinsic chirality from thin, planar dielectric nanostructures is addressed and near-unity circular dichroism is experimentally achieved, the highest value demonstrated to date for any geometry in the visible spectrum.

Active Chiral Plasmonics.

The combination of a passive bias-type chiral layer with the active chiral metamaterial allows for switchable chirality, that is, the reversal of the circular dichroism sign, in a fully planar, layered design without the need for geometrical reconfiguration.

High-Performance Ultrathin Active Chiral Metamaterials.

Impressively, the spectral shift over a wavelength range that is more than one full width at half-maximum and the sign inversion of the CD spectra in a single ultrathin (1/5 of wavelength in thickness) MCM is achieved.

Magnetic Control of the Chiroptical Plasmonic Surfaces.

An ultrathin chiroptical surface, built on two-dimensional nanoantennas, where the chiral light transmission is controlled by the externally applied magnetic field, opening the route for nanometer-thin magnetoplasmonic light-modulating surfaces tuned in real time and featuring a broad spectral response.

Circularly polarized light detection with hot electrons in chiral plasmonic metamaterials

An ultracompact circularly polarized light detector that combines large engineered chirality, realized using chiral plasmonic metamaterials, with hot electron injection is reported that could lead to enhanced security in fibre and free-space communication, as well as emission, imaging and sensing applications for circularly polarization light using a highly integrated photonic platform.

Reconfigurable chiroptical nanocomposites with chirality transfer from the macro- to the nanoscale.

Nanocomposites are described, made by conformally coating twisted elastic substrates with films assembled layer-by-layer from plasmonic nanocolloids, whose nanoscale geometry and rotatory optical activity can be reversibly reconfigured and cyclically modulated by macroscale stretching.

All-dielectric planar chiral metasurface with gradient geometric phase.

A planar chiral all-dielectric metasurface is proposed that exhibits giant circular dichroism and transmission asymmetry over 0.8 for circularly polarized lights with negligible loss, without bringing in bianisotropy or violating reciprocity.

Magnetic field modulation of chirooptical effects in magnetoplasmonic structures.

It is shown that the optical chirality can be modulated by the applied magnetic field, which suggests that magnetoplasmonic chiral structures could be used to develop new strategies for chirooptical sensing.