Photoconductive terahertz generation in nitrogen-doped single-crystal diamond

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 Z...

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Veröffentlicht in:Optics letters 2022-01, Vol.47 (1), p.86-89
Hauptverfasser: Chizhov, Pavel A, Komlenok, Maxim S, Kononenko, Vitali V, Bukin, Vladimir V, Ushakov, Alexander A, Bulgakova, Vladislava V, Khomich, Andrey A, Bolshakov, Andrey P, Konov, Vitaly I, Garnov, Sergey V
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Sprache:eng
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Zusammenfassung: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.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.446750