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- Park, Hyeong‐Ryeol
- Laboratory for Ultrafast & Nanoscale Plasmonics
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Focusing of Terahertz Waves onto Micron-sized Slits Grown on ZnTe and GaP Substrates
- Author(s)
- Seo, M. A., Park, Hyeong‐Ryeol, Park, D. J., Kim, DaiSik, Adam, A. J. L., Planken, P. C. M.
- Issued Date
- 2009-07
- Citation
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.55, no.1, pp.267 - 270
- Abstract
- We report on terahertz focusing through rectangular slit; apertures on thin metal film by using terahertz time domain spectroscopy both in the far- and 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.
- Publisher
- KOREAN PHYSICAL SOC
- ISSN
- 0374-4884
- Keyword (Author)
- Terahertz, Optical spectroscopy, Plasmonic metamaterials
- Keyword
- SURFACE-PLASMONS, TRANSMISSION, ARRAYS, DIFFRACTION, APERTURES, VACUUM, SHAPE, HOLES
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