Beam waist measurement for terahertz time-domain spectroscopy experiments.
نویسندگان
چکیده
Classical masking aperture methods are found to be mostly inaccurate to determine the terahertz beam size in terahertz time-domain spectroscopy (TDS) experiments, owing to complex diffraction effects. Here, we present a simple and reliable method for measuring beam waists in terahertz TDS. It is based on the successive diffraction by an opaque disk followed by a small circular aperture.
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ورودعنوان ژورنال:
- Optics letters
دوره 35 7 شماره
صفحات -
تاریخ انتشار 2010