Photonic-crystal mediated charged particle beam velocity modulation and electromagnetic wave generation

Yiming Xu, Rebecca Seviour

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

We present the first experimental results of a photonic crystal (PC) structure-mediated charged particle beam velocity modulation and energy exchange. Our structure was based on two photonic lattices working at 9.532 GHz: a modulation lattice (ML) driven by a 2.5-6W signal to velocitymodulate an electron beam of dc voltage from 15 to 30 kV and current from 50 to 150μA, and an excitation lattice (EL) to exchange energy with the modulated beam, similar to a two-cavity klystron. Experimental results successfully demonstrated high spectral purity from signals excited by the velocity-modulated beam in the EL, with power level in excellent agreement with conventional theories.

Original languageEnglish
Article number013014
JournalNew Journal of Physics
Volume14
DOIs
Publication statusPublished - 11 Jan 2012

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velocity modulation
wave generation
particle beams
electromagnetic radiation
charged particles
photonics
crystals
energy transfer
excitation
purity
electron beams
modulation
cavities
crystal structure
electric potential

Cite this

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title = "Photonic-crystal mediated charged particle beam velocity modulation and electromagnetic wave generation",
abstract = "We present the first experimental results of a photonic crystal (PC) structure-mediated charged particle beam velocity modulation and energy exchange. Our structure was based on two photonic lattices working at 9.532 GHz: a modulation lattice (ML) driven by a 2.5-6W signal to velocitymodulate an electron beam of dc voltage from 15 to 30 kV and current from 50 to 150μA, and an excitation lattice (EL) to exchange energy with the modulated beam, similar to a two-cavity klystron. Experimental results successfully demonstrated high spectral purity from signals excited by the velocity-modulated beam in the EL, with power level in excellent agreement with conventional theories.",
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Photonic-crystal mediated charged particle beam velocity modulation and electromagnetic wave generation. / Xu, Yiming; Seviour, Rebecca.

In: New Journal of Physics, Vol. 14, 013014, 11.01.2012.

Research output: Contribution to journalArticle

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AU - Xu, Yiming

AU - Seviour, Rebecca

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AB - We present the first experimental results of a photonic crystal (PC) structure-mediated charged particle beam velocity modulation and energy exchange. Our structure was based on two photonic lattices working at 9.532 GHz: a modulation lattice (ML) driven by a 2.5-6W signal to velocitymodulate an electron beam of dc voltage from 15 to 30 kV and current from 50 to 150μA, and an excitation lattice (EL) to exchange energy with the modulated beam, similar to a two-cavity klystron. Experimental results successfully demonstrated high spectral purity from signals excited by the velocity-modulated beam in the EL, with power level in excellent agreement with conventional theories.

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