Upconversion of a relativistic Coulomb field terahertz pulse to the near infrared

S. P. Jamison, G. Berden, P. J. Phillips, W. A. Gillespie, A. M. MacLeod

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    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 omega(opt) +/- omega(THz), and omega(opt) +/- 2 omega(THz), respectively, confirms the chi((2)) frequency mixing mechanism. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3449132]

    Original languageEnglish
    Article number231114
    Pages (from-to)-
    Number of pages3
    JournalApplied Physics Letters
    Volume96
    Issue number23
    DOIs
    Publication statusPublished - 7 Jun 2010

    Cite this

    Jamison, S. P., Berden, G., Phillips, P. J., Gillespie, W. A., & MacLeod, A. M. (2010). Upconversion of a relativistic Coulomb field terahertz pulse to the near infrared. Applied Physics Letters, 96(23), -. [231114]. https://doi.org/10.1063/1.3449132