Enhanced responsivity resonant RF photodetectors.


The responsivity of room-temperature, semiconductor-based photodetectors consisting of resonant RF circuits coupled to microstrip buslines is investigated. The dependence of the photodetector response on the semiconductor material and RF circuit geometry is presented, as is the detector response as a function of the spatial position of the incident light. We demonstrate significant improvement in detector response by choice of photoconductive material, and for a given material, by positioning our optical signal to overlap with positions of RF field enhancement. Design of RF circuits with strong field enhancement are demonstrated to further improve detector response. The improved detector response demonstrated offers opportunities for applications in RF photonics, materials metrology, or single read-out multiplexed detector arrays.

DOI: 10.1364/OE.24.026044

Cite this paper

@article{Liu2016EnhancedRR, title={Enhanced responsivity resonant RF photodetectors.}, author={R S Liu and Satya Dev and Yaoyu Zhong and R. Q. Lu and William H Streyer and J. W. Allen and Micheal S. Allen and B. Wenner and S M Gong and David H . Wasserman}, journal={Optics express}, year={2016}, volume={24 23}, pages={26044-26054} }