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arXiv · 2108.03883

Carbon nanotubes for polarization sensitive terahertz plasmonic interferometry

Y. Matyushkin·S. Danilov·M. Moskotin·G. Fedorov·A. Bochin·I. Gorbenko·V. Kachorovskii·S. Ganichev
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Abstract

We report on helicity sensitive photovoltaic terahertz radiation response of a carbon nanotube made in a conguration of a field effect transistor. We find that the magnitude of the rectified voltage is different for clockwise and anticlockwise circularly polarized radiation. We demonstrate that this effect is a fingerprint of the plasma waves interference in the transistor channel. We also find that that the presence of the helicity- and phase-sensitive interference part of the photovoltaic response is a universal phenomenon which is obtained in the systems of different dimensionality with different single particle spectrum. Its magnitude is characteristic of the plasma wave decay length. This opens up a wide avenue for applications in the area of plasmonic interferometry.

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Y. Matyushkin, S. Danilov, M. Moskotin, G. Fedorov, A. Bochin, I. Gorbenko, V. Kachorovskii, S. Ganichev. 2021-08-09. Carbon nanotubes for polarization sensitive terahertz plasmonic interferometry. https://doi.org/10.1364/oe.435416

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