Sharp Toroidal Resonances in Planar Terahertz Metasurfaces | Zendy

Gupta Manoj | Zendy; Savinov Vassili | Zendy; Xu Ningning | Zendy; Cong Longqing | Zendy; Dayal Govind | Zendy; Wang Shuang | Zendy; Zhang Weili | Zendy; Zheludev Nikolay I. | Zendy; Singh Ranjan | Zendy

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Sharp Toroidal Resonances in Planar Terahertz Metasurfaces

Author(s) -

Gupta Manoj,

Savinov Vassili,

Xu Ningning,

Cong Longqing,

Dayal Govind,

Wang Shuang,

Zhang Weili,

Zheludev Nikolay I.,

Singh Ranjan

Publication year - 2016

Publication title -

advanced materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 10.707

H-Index - 527

eISSN - 1521-4095

pISSN - 0935-9648

DOI - 10.1002/adma.201601611

Subject(s) - terahertz radiation , materials science , planar , toroid , metamaterial , optoelectronics , optics , nanotechnology , physics , plasma , quantum mechanics , computer graphics (images) , computer science

A toroidal dipole in metasurfaces provides an alternate approach for the excitation of high‐ Q resonances. In contrast to conventional multipoles, the toroidal dipole interaction strength depends on the time derivative of the surrounding electric field. A characteristic feature of toroidal dipoles is tightly confined loops of oscillating magnetic field that curl around the fictitious arrow of the toroidal dipole vector.

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