Focusing of Terahertz Waves onto Micron-sized Slits Grown on ZnTe and GaP Substrates | Zendy

Minah Seo | Zendy; H.R. Park | Zendy; Do Joon Park | Zendy; DaiSik Kim | Zendy; A.J.L. Adam | Zendy; P. C. M. Planken | Zendy

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Focusing of Terahertz Waves onto Micron-sized Slits Grown on ZnTe and GaP Substrates

Author(s) -

Minah Seo,

H.R. Park,

Do Joon Park,

DaiSik Kim,

A.J.L. Adam,

P. C. M. Planken

Publication year - 2009

Publication title -

journal of the korean physical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.215

H-Index - 48

eISSN - 1976-8524

pISSN - 0374-4884

DOI - 10.3938/jkps.55.267

Subject(s) - terahertz radiation , aperture (computer memory) , optics , materials science , near and far field , terahertz spectroscopy and technology , field (mathematics) , extraordinary optical transmission , optoelectronics , spectroscopy , resonance (particle physics) , physics , surface plasmon , surface plasmon polariton , plasmon , mathematics , quantum mechanics , particle physics , acoustics , pure mathematics

We report on terahertz focusing through rectangular slit apertures on thin metal film by using terahertz time domain spectroscopy both in the farand in the near-field. Our experiments show that far-field perfect transmission is maintained in the rectangular slit array even as the aperture coverage decreases. Near-field imaging supports the field enhancement in the single rectangular aperture indeed occurring at a frequency equal to the fundamental shape resonance frequency.

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