Broadband " Focus - Free " Terahertz Imaging Using Axicons
نویسندگان
چکیده
We report the use of axicons to achieve broadband "focus-free" imaging in transmission and reflection at terahertz wavelengths. We demonstrate how the use of a broadband terahertz source improves the resolution of the imaging system, and how by using time-of-flight data the axial position and dimension of objects within the large depth of field of the axicon (160 mm) could be determined.
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تاریخ انتشار 2014