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Please use this identifier to cite or link to this item: http://hdl.handle.net/10373/519

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Title: Upconversion of a relativistic Coulomb field terahertz pulse to the near infrared
Authors: Jamison, S. P.
Berden, G.
Phillips, P. J.
Gillespie, W. A.
MacLeod, Allan M.
Affiliation: University of Abertay Dundee. School of Computing and Engineering Systems
Keywords: High-speed optical techniques
Infrared spectra
Light polarisation
Microwave photonics
Optical wavelength conversion
Terahertz waves
Issue Date: 10-Jun-2010
Publisher: American Institute of Physics
Type: Journal Article
Refereed: peer-reviewed
Rights: Published version (c)American Institute of Physics, available at DOI: 10.1063/1.3449132
Citation: Jamison, S.P., et al. 2010. Upconversion of a relativistic Coulomb field terahertz pulse to the near infrared. Applied Physics Letters. 96(23): pp.231114-1-3. Available at DOI: 10.1063/1.3449132
Abstract: We demonstrate the spectral upconversion of a unipolar subpicosecond terahertz (THz) pulse, where the THz pulse is the Coulomb field of a single relativistic electron bunch. The upconversion to the optical allows remotely located detection of long wavelength and nonpropagating components of the THz spectrum, as required for ultrafast electron bunch diagnostics. The upconversion of quasimonochromatic THz radiation has also been demonstrated, allowing the observation of distinct sum- and difference-frequency mixing components in the spectrum. Polarization dependence of first and second order sidebands at ωopt±ωTHz, and ωopt±2ωTHz, respectively, confirms the χ(2) frequency mixing mechanism.
URI: http://hdl.handle.net/10373/519
ISSN: 1077-3118
Appears in Collections:Computing & Engineering Systems Collection

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