Non-invasive terahertz field imaging inside parallel plate waveguides

Krzysztof Iwaszczuk, Andrei Andryieuski, Andrei Lavrinenko, X. -C. Zhang, Peter Uhd Jepsen

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    We present a non-invasive broadband air photonic method of imaging of the electric field of THz pulses propagating inside a tapered parallel plate waveguide. The method is based on field-enhanced second harmonic generation of the fundamental laser beam in an external electric field. We apply the technique to measure the frequency-dependent reflection coefficient at the end of the waveguide.
    Original languageEnglish
    JournalApplied Physics Letters
    Issue number7
    Pages (from-to)071113
    Publication statusPublished - 2011

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    Copyright 2011 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.


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