6 Dokumente gefunden :
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2021-07-06
A 32×32 Pixel 0.46-to-0.75THz Light-Field Camera SoC in 0.13μm CMOS
Light-field (LF) refers to the spatio-directional light flow in space. In LF imaging, light rays are recorded along different positions and directions, and a 3-D scene is reconstructed with back-propagation [1]. Modern visible-light LF cameras assemble a lens array atop a megapixel (Mpx) count focal-plane…
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2021-07-06
Incoherent Power Combining of THz Source Arrays
In this paper, we investigate the multi-chip scaling of a previously developed incoherent 4×4-pixel 0.53-THz 1mW source array, implemented in a 0.13-μ m SiGe BiCMOS technology. A standalone module under-samples the illumination space due to a large pixel pitch given by the implemented triple-push oscillator…
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2021-07-06
Resolution Limits of Hyper-Hemispherical Silicon Lens-Integrated THz Cameras Employing Geometrical Multi-Frame Super-Resolution…
In this paper, we present a comprehensive study to understand the image formation and associated resolution limitations of hyper-hemispherical high-resistivity floating-zone silicon (HRFZ-Si) lens-integrated terahertz (THz) cameras, and we extend this understanding into THz super-resolution imaging applications.…
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2021-07-06
A 64-Pixel 0.42 THz Source SoC with Spatial Modulation Diversity for Computational Imaging
This paper presents a terahertz source system-on-a-chip (SoC) specifically designed for computational imaging with a single pixel camera (SPC). The SoC consists of an 8×8 array of independent, frequency unlocked THz sources that together radiate maximum 10.3 dBm power at 0.42 THz. Each source pixel is…
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2021-07-06
A Terahertz Direct Detector in 22nm FD-SOI CMOS
This paper reports on the design and characterization of a CMOS based direct terahertz detector in an advanced 22nm FD-SOI technology. The nFET detector is implemented with an on-chip ring antenna fully compliant with the technology density rules. At 0.855 THz, a maximum optical responsivity and a minimum…
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2021-05-19
Resolution Limits in Lens-Integrated CMOS THz Cameras Employing Super-Resolution Imaging
In this paper, we discuss the design choices of CMOS THz cameras for achieving maximum angular resolution and high sensitivity over a large bandwidth. In an active THz imaging set-up, the spatial resolution becomes a function of the object magnification, determined by the focal length of the collimating…