Application of metasurface-based low-pass filters for improving THz-TDS characteristics

N. A. Nikolaev; A. A. Rybak; S. A. Kuznetsov

doi:10.1088/1742-6596/1461/1/012118

Application of metasurface-based low-pass filters for improving THz-TDS characteristics

N. A. Nikolaev, A. A. Rybak, S. A. Kuznetsov

Результат исследования: Научные публикации в периодических изданиях › статья по материалам конференции

Аннотация

We propose an approach to improve the technical characteristics of terahertz time-domain spectrometers at low-frequency measurements. The approach is based on applying low-pass THz filters to narrow the frequency band of the THz signal that allows increasing the sampling interval in accordance with the Nyquist-Shannon theorem. This concept was verified by studying the transmission spectra of low-frequency band-pass THz filters centered at 156 and 376 GHz. We confirm that the high-quality low-pass filters can improve accuracy of THz measurements and significantly reduce data acquisition time. The reduction up to 12 times was experimentally demonstrated in our case.

Язык оригинала	английский
Номер статьи	012118
Число страниц	4
Журнал	Journal of Physics: Conference Series
Том	1461
Номер выпуска	1
DOI	https://doi.org/10.1088/1742-6596/1461/1/012118
Состояние	Опубликовано - 23 апр 2020
Событие	4th International Conference on Metamaterials and Nanophotonics, METANANO 2019 - St. Petersburg, Российская Федерация Продолжительность: 15 июл 2019 → 19 июл 2019

Доступ к документу

10.1088/1742-6596/1461/1/012118

Link to publication in Scopus

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Цитировать

Nikolaev, N. A., Rybak, A. A., & Kuznetsov, S. A. (2020). Application of metasurface-based low-pass filters for improving THz-TDS characteristics. Journal of Physics: Conference Series, 1461(1), [012118]. https://doi.org/10.1088/1742-6596/1461/1/012118

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abstract = "We propose an approach to improve the technical characteristics of terahertz time-domain spectrometers at low-frequency measurements. The approach is based on applying low-pass THz filters to narrow the frequency band of the THz signal that allows increasing the sampling interval in accordance with the Nyquist-Shannon theorem. This concept was verified by studying the transmission spectra of low-frequency band-pass THz filters centered at 156 and 376 GHz. We confirm that the high-quality low-pass filters can improve accuracy of THz measurements and significantly reduce data acquisition time. The reduction up to 12 times was experimentally demonstrated in our case.",

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Application of metasurface-based low-pass filters for improving THz-TDS characteristics. / Nikolaev, N. A.; Rybak, A. A.; Kuznetsov, S. A.

В: Journal of Physics: Conference Series, Том 1461, № 1, 012118, 23.04.2020.

Результат исследования: Научные публикации в периодических изданиях › статья по материалам конференции

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