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Terahertz Imaging Circuits in CMOS
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- Authors
- Issue Date
- 2015
- Publisher
- IEEE
- Citation
- 2015 ASIA-PACIFIC MICROWAVE CONFERENCE (APMC), VOLS 1-3, Vol.1
- Abstract
- An 820-GHz 8x8 imaging array of diode-connected NMOS transistor detectors, and 5-, and 10-THz fundamental Schottky diode detectors are demonstrated in a 130-nm bulk CMOS process. Measured mean optical responsivity (R-v) of 2.6kV/W and mean optical NEP of 36pW/Hz(1/2) at a modulation frequency of 1MHz are achieved for the 820-GHz imaging array. The NEP is more than 2.5X lower than that of the previously reported NMOS terahertz imaging arrays. The fundamental electronic detection of Far-Infrared radiation up to 9.74THz is also reported. A peak R-v of 383 at 4.92THz and a peak R-v of 14V/W at 9.74THz have been measured using a free electron laser. The R-v at 9.74THz is 14X of that for the previously reported highest frequency electronic detection. The shot noise limited NEP at 4.92 and 9.74THz is similar to 0.43 and similar to 2nW/root Hz, respectively
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Related Researcher
- College of Engineering
- Department of Electrical and Computer Engineering
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