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Conference Paper
Laser Science
San Jose, California United States
September 16, 2007
ISBN: 1-55752-846-2
Terahertz Spectroscopy II (LThE)

Terahertz Spectroscopy in the Near Field

Hui Zhan, Michael Hvasta, Victoria Astley, Jason Deibel, Daniel Mittleman, Feng Hao, Peter Nordlander, and Y. Lim


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We observe a terahertz field enhancement in the junction between a sub-wavelength metal probe tip and a metallic substrate. We exploit this in the first observation of a metal-insulator transition using terahertz near-field techniques.

© 2007 APS DLS

OCIS Codes
(240.0240) Optics at surfaces : Optics at surfaces
(240.6680) Optics at surfaces : Surface plasmons
(320.0320) Ultrafast optics : Ultrafast optics
(320.7100) Ultrafast optics : Ultrafast measurements

H. Zhan, M. Hvasta, V. Astley, J. Deibel, D. Mittleman, F. Hao, P. Nordlander, and Y. Lim, "Terahertz Spectroscopy in the Near Field," in Frontiers in Optics 2007/Laser Science XXIII/Organic Materials and Devices for Displays and Energy Conversion, OSA Technical Digest (CD) (Optical Society of America, 2007), paper LThE1.

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