Noise Analysis of Photoconductive Terahertz Detectors



The noise performance of photoconductive terahertz detectors is analyzed and the tradeoff between low-noise and high-responsivity operation of photoconductive detectors is investigated as a function of device parameters and operational settings. The analysis is conducted on two general photoconductive detector architectures, symmetrically pumped and asymmetrically pumped photoconductive detector architectures. The results indicate that the highest signal-to-noise ratios are offered by the symmetrically pumped and asymmetrically pumped detector architectures for the photoconductive detectors based on short-carrier lifetime and long-carrier lifetime semiconductors, respectively.


Terahertz detector Photoconductive antenna 


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Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  1. 1.Electrical Engineering and Computer Science DepartmentUniversity of MichiganAnn ArborUSA

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