Journal
OPTICS EXPRESS
Volume 16, Issue 25, Pages 20484-20489Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.16.020484
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Funding
- Korean government (Korean Science and Engineering Foundation
- Ministry of Science and Technology
- Ministry of Commerce, Industry, and Energy
- Ministry of Education
- Seoul RBD program
- EU TERANOVA Program [RCN-71835]
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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. (C) 2008 Optical Society of America
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