Resonant excitation of coherent Cerenkov radiation in dielectric lined waveguides

Andonian, G.; Williams, O.; Wei, Xuelian; Niknejadi, Pardis; Hemsing, E.; Rosenzweig, James; Muggli, P.; Babzien, M.; Fedurin, M.; Kusche, K.; Malone, R.; Yakimenko, V.

doi:10.1063/1.3592579

Cited by 68 publications

(60 citation statements)

References 8 publications

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“…Therefore a bunch train in principle can select only one mode out of a multimode structure. A similar experiment has been done recently [6], where a bunch train was used to selectively excite either the fundamental mode or a dipole mode. This experiment was performed at the Accelerator Test Facility (ATF) of Brookhaven National Laboratory [7].…”

Section: Thz Radiation Generation In a Multi Mode Structurementioning

confidence: 99%

High power terahertz radiation source based on electron beam wakefields

Antipov

Baryshev

Jing

et al. 2016

AIP Conference Proceedings

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Section: Thz Radiation Generation In a Multi Mode Structurementioning

confidence: 99%

High power terahertz radiation source based on electron beam wakefields

Antipov

Baryshev

Jing

et al. 2016

AIP Conference Proceedings

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“…The use of pulse trains to selectively excite the fundamental and the second order longitudinal mode of a DWA structure was reported in Ref. [7] in 2011. The experimental layout is schematically shown in (Fig.…”

Section: Resonant Mode Excitation With Pulse Trainsmentioning

confidence: 99%

Electron-beam driven dielectric wakefield accelerator experiments in the terahertz regime

Andonian¹

2013

AIP Conference Proceedings

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Bunch profile shaping using beam self-wakefields in a dielectric structure AIP Conference Proceedings 1777, 070002 (2016) Abstract. In recent years, there has been rapid experimental progress on using the self-¿elds of electron beams to drive accelerating gradients in dielectric lined cavities. The extension to sub-mm scaled cavities, producing terahertz frequencies, has allowed an accessible region to study high-gradient structures in many advanced accelerator facilities. In this paper, we present a broad review of such results as they pertain to dielectric wake¿eld acceleration (DWA). Issues that are discussed include the examination of breakdown in such structures and materials, as well as studies of in-line spectra generated by coherent Cherenkov radiation, which, for appropriate geometries, produce narrowband, tunable terahertz radiation. We examine measurements of higher-order mode excitations in these structures, which provide a novel characterization method as well as a tunable source of terahertz radiation. We describe DWA measurements including wake¿eld mapping, selective resonant mode excitation, and observation of energy modulation and acceleration made possible by electron beam manipulation schemes, such as drive-witness, pulse-train, and ramped beam generation. We present alternate materials and geometries such as 1D and 3D photonic-like structures. Finally, we conclude with preliminary results from the initial DWA experimental runs at the SLAC FACET facility.

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“…Grating structures can be used to excite a THz Smith-Purcell radiation [18]. Finally, one can use coherent Cherenkov radiation (CCR) [19,20]. The length of the THz extraction structure controls the resulting bandwidth (less than 1% is attainable).…”

Section: Thz Extractionmentioning

confidence: 99%

Terahertz radiation source based on self-wake beam bunching

Antipov¹,

Jing²,

Schoessow³

et al. 2013

AIP Conference Proceedings

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Argonne National Laboratory, Argonne IL, 60439, USA Abstract. A table top device for producing high power T-ray beams is described. A rectangular electron beam that can be produced out of a photoinjector via stacking of the laser pulse, and running off-crest of the photoinjector rf is sent through a dielectric loaded waveguide. Due to the beam's self-wake its energy becomes modulated. In the chicane beamline following the dielectric energy-bunching section this energy modulation is converted to a density modulationa bunch train. The density modulated beam can be sent through a power extraction section, like a dielectric loaded accelerating structure, or simply can intercept a foil target, producing THz radiation of various bandwidths and power levels.

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Resonant excitation of coherent Cerenkov radiation in dielectric lined waveguides

Cited by 68 publications

References 8 publications

High power terahertz radiation source based on electron beam wakefields

High power terahertz radiation source based on electron beam wakefields

Electron-beam driven dielectric wakefield accelerator experiments in the terahertz regime

Terahertz radiation source based on self-wake beam bunching

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