Optically thin terahertz metamaterials | Zendy

Ranjan Singh | Zendy; E. I. Smirnova | Zendy; Antoinette J. Taylor | Zendy; John F. O’Hara | Zendy; Weili Zhang | Zendy

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Optically thin terahertz metamaterials

Author(s) -

Ranjan Singh,

E. I. Smirnova,

Antoinette J. Taylor,

John F. O’Hara,

Weili Zhang

Publication year - 2008

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.16.006537

Subject(s) - metamaterial , split ring resonator , terahertz radiation , materials science , optics , resonator , planar , resonance (particle physics) , terahertz spectroscopy and technology , dipole , optoelectronics , spectroscopy , physics , atomic physics , computer graphics (images) , quantum mechanics , computer science

Resonant properties of optically thin metamaterials are studied by terahertz time-domain spectroscopy. Both the lower energy inductor-capacitor (LC) and the higher energy dipole resonances of the planar double split-ring resonators (SRRs) exhibit characteristic evolution with various sub-skin-depth thicknesses of the constituent Pb film. The signature of the LC resonance begins to emerge at a critical thickness near 0.15 skin depth. The resonances reveal a characteristic enhancement; they are strengthened remarkably with increasing SRR thicknesses at sub-skin-depth level and then gradually saturate beyond the skin depth.

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