Abstract
Compact THz source based on low energy electron and a planar corrugated structure was demonstrated experimentally.
Highlights
The terahertz (THz) range of the electromagnetic spectrum is energetically equivalent to photon energies of several millielectronvolts, the relevance of THz waves for selective excitation of low energy collective modes in correlated materials and control of materials through field manipulation of electronic, atomic, and spin degrees of freedom
We report observations of an intense sub-THz radiation extracted from a ∼3 MeV electron beam with a flat transverse profile propagating between two parallel oversized copper gratings with side openings
This paper presents direct observation of sub-THzrange coherent Cherenkov radiation produced in a robust, tabletop system highlighting a novel flexible utility for compact thermionic injectors
Summary
The terahertz (THz) range of the electromagnetic spectrum is energetically equivalent to photon energies of several millielectronvolts, the relevance of THz waves for selective excitation of low energy collective modes in correlated materials and control of materials through field manipulation of electronic, atomic, and spin degrees of freedom. High power THz radiation is usually produced by means of a coherent undulator radiation in free electron lasers [2], transition radiation in linacs [3,4,5,6], or synchrotron radiation in electron storage rings [7,8]. These facilities are large, expensive, and not readily available on a customized base for a broader community of researchers and industrial users.
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