| Autor: |
Badhwar, Shruti, Sibik, Juraj, Kidambi, Piran R., Beere, Harvey E., Axel Zeitler, J., Hofmann, Stephan, Ritchie, David A. |
| Předmět: |
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| Zdroj: |
Applied Physics Letters; 9/16/2013, Vol. 103 Issue 12, p121110-121110-4, 1p, 1 Chart, 2 Graphs |
| Abstrakt: |
Plasmonic resonance at terahertz (THz) frequencies can be achieved by gating graphene grown via chemical vapour deposition (CVD) to a high carrier concentration. THz time domain spectroscopy of such gated monolayer graphene shows resonance features around 1.6 THz, which appear as absorption peaks when the graphene is electrostatically p-doped and change to enhanced transmission when the graphene is n-doped. Superimposed on the Drude-like frequency response of graphene, these resonance features are related to the inherent poly-crystallinity of CVD graphene. An understanding of these features is necessary for the development of future THz optical elements based on CVD graphene. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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