Double negative-metamaterial based Terahertz radiation excited by a sheet beam bunch

Journal Article · Sun Sep 15 00:00:00 EDT 2013 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4820956· OSTI ID:22220632

Duan, Zhaoyun ^[1]; Guo, Chen ^[2]; Guo, Xin ^[1]; Chen, Min ^[3]

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1. Institute of High Energy Electronics, School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu 610054 (China)
2. Southwest China Institute of Electronic Technology, Chengdu 610036 (China)
3. Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)

We describe a new method to generate enhanced terahertz (THz) surface wave (SW) via its coupling with reversed Cherenkov radiation (RCR), excited by a sheet beam bunch which travels in a vacuum above an isotropic double negative metamaterial (DNM). The physical mechanism for the enhancement is that the DNM can support a RCR which can resonantly interact with a sheet electron beam bunch, resulting in an enhanced SW due to its coupling with the enhanced RCR. Numerical results show strong enhancement effect for the SW and RCR in the THz band. This enhanced THz radiation has potential applications to high-power THz radiation sources and Cherenkov detectors which require large signals.

• OSTI ID: 22220632
• Journal Information: Physics of Plasmas, Vol. 20, Issue 9; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BEAM BUNCHERS
CHERENKOV COUNTERS
CHERENKOV RADIATION
COUPLING
ELECTRON BEAMS
NUMERICAL ANALYSIS
PLASMA
RADIATION SOURCES
SHEETS
WAVE PROPAGATION