Near field imaging of terahertz focusing onto rectangular apertures

M. A. Seo, A. J L Adam, J. H. Kang, J. W. Lee, K. J. Ahn, Q Han Park, P. C M Planken, D. S. Kim

Research output: Contribution to journalArticle

55 Citations (Scopus)

Abstract

We performed terahertz near-field experiments on single rectangular holes with various lengths grown on an electro-optic crystal substrate with λ/100 resolution. We find that the near-field amplitude becomes proportionally larger as the rectangle becomes narrower, strongly suggesting that a constant energy passes through even for a very narrow slit. The occurrence of a large field enhancement at the fundamental localized resonance is discussed confirming the funneling of energy at the near-field.

Original languageEnglish
Pages (from-to)20484-20489
Number of pages6
JournalOptics Express
Volume16
Issue number25
DOIs
Publication statusPublished - 2008 Dec 8

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near fields
apertures
rectangles
electro-optics
slits
occurrences
energy
augmentation
crystals

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Seo, M. A., Adam, A. J. L., Kang, J. H., Lee, J. W., Ahn, K. J., Park, Q. H., ... Kim, D. S. (2008). Near field imaging of terahertz focusing onto rectangular apertures. Optics Express, 16(25), 20484-20489. https://doi.org/10.1364/OE.16.020484

Near field imaging of terahertz focusing onto rectangular apertures. / Seo, M. A.; Adam, A. J L; Kang, J. H.; Lee, J. W.; Ahn, K. J.; Park, Q Han; Planken, P. C M; Kim, D. S.

In: Optics Express, Vol. 16, No. 25, 08.12.2008, p. 20484-20489.

Research output: Contribution to journalArticle

Seo, MA, Adam, AJL, Kang, JH, Lee, JW, Ahn, KJ, Park, QH, Planken, PCM & Kim, DS 2008, 'Near field imaging of terahertz focusing onto rectangular apertures', Optics Express, vol. 16, no. 25, pp. 20484-20489. https://doi.org/10.1364/OE.16.020484
Seo MA, Adam AJL, Kang JH, Lee JW, Ahn KJ, Park QH et al. Near field imaging of terahertz focusing onto rectangular apertures. Optics Express. 2008 Dec 8;16(25):20484-20489. https://doi.org/10.1364/OE.16.020484
Seo, M. A. ; Adam, A. J L ; Kang, J. H. ; Lee, J. W. ; Ahn, K. J. ; Park, Q Han ; Planken, P. C M ; Kim, D. S. / Near field imaging of terahertz focusing onto rectangular apertures. In: Optics Express. 2008 ; Vol. 16, No. 25. pp. 20484-20489.
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