Terahertz superconducting plasmonic hole array
Optics Letters, Vol. 35, Issue 21, pp. 3586-3588 (2010)
http://dx.doi.org/10.1364/OL.35.003586
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Abstract
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.
© 2010 Optical Society of America
OCIS Codes
(240.6680) Optics at surfaces : Surface plasmons
(300.6495) Spectroscopy : Spectroscopy, teraherz
(050.6624) Diffraction and gratings : Subwavelength structures
ToC Category:
Optics at Surfaces
History
Original Manuscript: July 30, 2010
Manuscript Accepted: September 10, 2010
Published: October 21, 2010
Citation
Zhen Tian, Ranjan Singh, Jiaguang Han, Jianqiang Gu, Qirong Xing, Judy Wu, and Weili Zhang, "Terahertz superconducting plasmonic hole array," Opt. Lett. 35, 3586-3588 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-21-3586
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