Observation off Whispering Gallery Mode Terahertz Pulses

Jiangquan Zhang; D. Grischkowsky

Conference on Lasers and Electro-Optics
OSA Technical Digest (Optica Publishing Group, 2002),
paper CFI3

Observation off Whispering Gallery Mode Terahertz Pulses

Jiangquan Zhang and D. Grischkowsky

Conference on Lasers and Electro-Optics 2002

Long Beach, California United States
19–22 May 2002
ISBN: 1-55752-706-7

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Pulsed Terahertz-Beam Applications (CFI)

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J. Zhang and D. Grischkowsky, "Observation off Whispering Gallery Mode Terahertz Pulses," in Conference on Lasers and Electro-Optics, M. Fejer, F. Leonberger, J. Fujimoto, and S. Newton, eds., OSA Technical Digest (Optica Publishing Group, 2002), paper CFI3.

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Abstract

We report the first observation of a subpsec THz pulse propagating as a superposition of WGM modes of a dielectric cylinder. Unlike other WGM-related studies that use a single frequency cw laser as the coupling source,¹ we use subpsec THz pulses generated by a photoconductively switched coplanar stripline. Consequently, the coupled WGM pulse covers a continuous frequency range from 0.4 THz to 1.8 THz and consists of a superposition of several WGM modes.

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