Journal
OPTICS LETTERS
Volume 35, Issue 21, Pages 3586-3588Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.35.003586
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Funding
- National Science Foundation (NSF)
- National Natural Science Foundation of China (NSFC) [61028011]
- National Key Basic Research Special Foundation of China [2007CB310403, 2007CB310408]
- MOE 111 Program of China
- MOE Academic Research Fund of Singapore
- Lee Kuan Yew Fund
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [803149] Funding Source: National Science Foundation
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We demonstrate a superconductor array of subwavelength holes with active thermal control over the resonant transmission induced by surface plasmon polaritons. The array was lithographically fabricated on a high-temperature yttrium barium copper oxide superconductor and characterized by terahertz time-domain spectroscopy. We observe a clear transition from a virtual excitation of the surface plasmon mode to a real surface plasmon mode. The highly controllable superconducting plasmonic crystals may find promising applications in the design of low-loss, large-dynamic-range amplitude modulation and surface-plasmon-based terahertz devices. (C) 2010 Optical Society of America
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