Terahertz free electron superradiation from mimicking surface plasmons-two electron beams interaction within a 3-mirror quasi-optical cavity

Journal Article · Mon May 27 04:00:00 EDT 2013 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4808085· OSTI ID:22162953

Zhang, Ya-Xin; Zhou, Y.; Dong, L.; Liu, Sheng-Gang ^[1]

---

1. Terahertz Science and Technology Research Center, School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu 610054 (China)

Interaction between mimicking surface plasmons and electron beams provides a good opportunity to develop terahertz (THz) radiation sources. In this paper, such an interaction in a special 3-mirror quasi-optical cavity is presented and explored. The 3-mirror quasi-optical cavity acts as a resonant tunable system, the resonance frequency of which can be tuned by adjusting the distance between mirrors. The study demonstrated THz free electron superradiation from the interaction of mimicking surface plasmons and two electron beams that formed a resonance within the structure, with the 3-mirror cavity enhancing the intensity of superradiation. Moreover, this system can work in the high-harmonic superradiation region with relatively high efficiency and low current density. This concept thus shows the application potential for electron-beam-driven terahertz sources.

• OSTI ID: 22162953
• Journal Information: Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 21 Vol. 102; ISSN APPLAB; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
CURRENT DENSITY
EFFICIENCY
ELECTRON BEAMS
FREE ELECTRON LASERS
INTERACTIONS
LASER CAVITIES
MESONS
PLASMONS
RADIATION SOURCES
RESONANCE
RESONATORS
SURFACES