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We describe an approach to terahertz near field microscopy based on integrating custom-designed photoelectric radiation sources with near field probes on a single chip. Here we present results from new planar and conical probe designs.
We present the optimum operating conditions for THz scattering-type near-field microscopes using a self-consistent quasi-static line dipole image method. We show that the optimum incident angle of THz wave depends on the complex refractive index of substrate, and significantly enhance the near-field scattering signal. We also find that forward-scattering signal is preferred to back-scattering signal...
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