Time resolved terahertz spectroscopy of optically pumped multilayered graphene on silicon substrate

Alexandr N. Grebenchukov; Anton D. Zaitsev; Petr S. Demchenko; Mikhail G. Novoselov; Egor V. Kornilov; Evgeniya O. Kovalska; Anna V. Baldycheva; Mikhail K. Khodzitsky

doi:10.1117/12.2325842

19 September 2018 Time resolved terahertz spectroscopy of optically pumped multilayered graphene on silicon substrate

Alexandr N. Grebenchukov, Anton D. Zaitsev, Petr S. Demchenko, Mikhail G. Novoselov, Egor V. Kornilov, Evgeniya O. Kovalska, Anna V. Baldycheva, Mikhail K. Khodzitsky

Author Affiliations +

Proceedings Volume 10719, Metamaterials, Metadevices, and Metasystems 2018; 1071938 (2018) https://doi.org/10.1117/12.2325842
Event: SPIE Nanoscience + Engineering, 2018, San Diego, California, United States

Abstract

In this work, we study infrared optical pump-induced changes in terahertz conductivity of multi-layer graphene on a silicon substrate using terahertz time-domain spectroscopy. Results indicate that the conductivity and optical parameters of investigated material strongly depend on a pumping intensity and the presence of FeCl₃ molecules intercalation. The findings are helpful for determining the most optically tunable material towards designing of optically controllable terahertz devices based on new two-dimensional material beyond graphene monolayer.

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Alexandr N. Grebenchukov, Anton D. Zaitsev, Petr S. Demchenko, Mikhail G. Novoselov, Egor V. Kornilov, Evgeniya O. Kovalska, Anna V. Baldycheva, and Mikhail K. Khodzitsky "Time resolved terahertz spectroscopy of optically pumped multilayered graphene on silicon substrate", Proc. SPIE 10719, Metamaterials, Metadevices, and Metasystems 2018, 1071938 (19 September 2018); https://doi.org/10.1117/12.2325842

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