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We design a T-shape structure reflecting mirror covered a gold thin film on the high-resistivity silicon substrate (ρ=1000 Ω·Cm) for the detector array. The electric field distribution of the T-shape structure is simulated by using finite difference time domain (FDTD) solutions in the frequency range from 300 GHz to 400 GHz. The electric field can be gathered in the central area of the silicon substrate...
Sensing and imaging at millimeter-wave and THz frequencies is promising for a wide range of applications, including security, industrial control, healthcare, and scientific metrology. The development of high-sensitivity, low noise detectors based on interband tunneling in III-V heterostructure devices, and their integration into subsystems is promising for realizing the potential of these applications...
We report terahertz coded-aperture imaging using photo-induced reconfigurable aperture arrays on a silicon wafer. The coded aperture was implemented using programmable illumination from a commercially available digital light processing projector. At 590 GHz, each of the array element apertures can be optically turned on and off with a modulation depth of 20 dB and a modulation rate of ...
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