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|Title: ||Upconversion of a relativistic Coulomb field terahertz pulse to the near infrared|
|Authors: ||Jamison, S. P.|
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|
Optical wavelength conversion
|Issue Date: ||10-Jun-2010|
|Publisher: ||American Institute of Physics|
|Type: ||Journal Article|
|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.|
|Appears in Collections:||Computing & Engineering Systems Collection|
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