There are established methods for calculating optical constants from measurements using a broadband terahertz (THz) source. Applications to ultrafast THz spectroscopy have adopted the key assumption that the THz beam is treated as a normal incidence plane-wave. We show that this assumption results in a frequency-dependent systematic error, which is compounded by distortion of the beam on introduction of the sample.


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    Titel :

    The consequences of diffractively spreading beams in ultrafast THz spectroscopy


    Beteiligte:
    Bowen, J.W. (Autor:in) / Walker, G.C. (Autor:in) / Hadjiloucas, S. (Autor:in) / Berry, E. (Autor:in)


    Erscheinungsdatum :

    01.01.2004


    Format / Umfang :

    171261 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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