Abstract
We present a large-format, sub-millimeter-resolution, real-time focal plane array sensor for THz imaging. Each pixel in sensor array consists of THz antennas monolithically integrated with ultra-fast heterostructure backward diodes. The antennas are optimized for diffraction limited image resolution and conjugate impedance match for highest THz sensitivity. The camera is designed to cover the 0.6–1.2 THz band with real-time (60 Hz) image acquisition speeds, making it ideal for a wide range of THz imaging applications such as biomedical imaging, security screening, non-destructive evaluation, and chemical spectroscopy.
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