High Efficiency Interdigitated Terahertz Photoconductive Antenna Integrated with Cylindrical Lens Array
نویسندگان
چکیده
Cylindrical lens array (CLA) and plasmonic nano-grating structures were integrated with a large area interdigitated photoconductive antenna (PCA) for high-efficiency terahertz (THz) emitter applications. The peak-to-peak amplitude of THz radiation pulse from the CLA-integrated PCA was enhanced 5.5 times compared that conventional without CLA. highly localized electric field near nanoscale grating shows optical absorption nano-grating. cylindrical focuses incident laser light onto interlaced active to avoid destructive interference emitted waves. higher degree utilization increased photo-generated carrier density at device surface, leading power.
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ژورنال
عنوان ژورنال: IEEE Transactions on Terahertz Science and Technology
سال: 2023
ISSN: ['2156-342X', '2156-3446']
DOI: https://doi.org/10.1109/tthz.2023.3301848