Application of terahertz Gouy phase shift from curved surfaces for estimation of crop yield.

نویسندگان

  • John F Federici
  • Robert L Wample
  • David Rodriguez
  • Suman Mukherjee
چکیده

The application of terahertz time-domain spectroscopy (THz-TDS) and imaging to differentiate flat and curved surfaces in reflection via the THz Gouy phase shift is demonstrated. For a THz-TDS system that is aligned for reflection from a flat surface, the presence of a curved surface displaces the image focal plane from the detector plane, resulting in a Gouy phase shift. The potential of utilizing this configuration for estimating the number and size of curved objects is discussed with particular emphasis on agriculture crop yield estimates.

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عنوان ژورنال:
  • Applied optics

دوره 48 7  شماره 

صفحات  -

تاریخ انتشار 2009