Detectivity enhancement in THz electrooptical sampling.
نویسندگان
چکیده
We demonstrate and discuss a simple scheme that significantly enhances the detectivity of THz electro-optical sampling by introducing a sequence of Brewster windows that increases the ellipticity of the probe beam. By varying the window material or the number of Brewster windows, the enhancement factor can be adjusted; we demonstrate an enhancement factor of ≈20 with four ZnSe Brewster windows. The scheme is particularly useful when very small THz fields are to be measured in connection with low-repetition rate amplified Ti:S laser systems.
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ورودعنوان ژورنال:
- The Review of scientific instruments
دوره 85 1 شماره
صفحات -
تاریخ انتشار 2014