Journal
OPTICS LETTERS
Volume 47, Issue 1, Pages 86-89Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.446750
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- Ministry of Science and Higher Education of the Russian Federation [075-15-2020-790]
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This study successfully achieved the generation of terahertz radiation in a nitrogen-doped single-crystal diamond material and investigated the performance of diamond antennas with different dopant levels. The results revealed a low saturation level for high-nitrogen-containing diamond substrates, indicating the potential of doped diamond as a material for high-efficiency large-aperture photoconductive antennas.
The generation of terahertz radiation in a photoconductive emitter based on nitrogen-doped single-crystal diamond was realized for the first time. Under 400 nm femtosecond laser pumping, the performance of diamond antennas with different dopant levels was investigated and compared with a reference ZnSe antenna. Terahertz waveforms and corresponding spectra were measured. A low saturation level for high-nitrogen-containing diamond substrate was revealed. The results indicate the prospects of doped diamond as a material for high-efficiency large-aperture photoconductive antennas. (C) 2021 Optica Publishing Group
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