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- Kim, Dai-Sik
- Nano Optics Group
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Near field imaging of terahertz focusing onto rectangular apertures
- Author(s)
- Seo, M. A., Adam, A. J. L., Kang, J. H., Lee, J. W., Ahn, K. J., Park, Q. H., Planken, P. C. M., Kim, D. S.
- Issued Date
- 2008-12
- Citation
- OPTICS EXPRESS, v.16, no.25, pp.20484 - 20489
- Abstract
- We performed terahertz near-field experiments on single rectangular holes with various lengths grown on an electro-optic crystal substrate with lambda/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.
- Publisher
- OPTICAL SOC AMER
- ISSN
- 1094-4087
- Keyword
- ELECTROOPTIC DETECTION, ARRAYS
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