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http://hdl.handle.net/10397/5819
Title: | Terahertz plasmonics in ferroelectric-gated graphene | Authors: | Jin, D Kumar, A Fung, KH Xu, J Fang, NX |
Issue Date: | 20-May-2013 | Source: | Applied physics letters, 20 May 2013, v. 102, no. 20, 201118, p. 1-5 | Abstract: | Inspired by recent advancement of ferroelectric-gated memories and transistors, we propose a design of ferroelectric-gated nanoplasmonic devices based on graphene sheets clamped in ferroelectric crystals. We show that the two-dimensional plasmons in graphene can strongly couple with the phonon-polaritons in ferroelectrics, leading to characteristic modal wavelength of the order of 100-200 nm at low temperature and low-THz frequencies albeit with an appreciable dissipation. By patterning the ferroelectrics into different domains, one can produce compact on-chip plasmonic waveguides, which exhibit negligible crosstalk even at 20 nm separation distance. Harnessing the memory effect of ferroelectrics, low-power operation can be achieved on these plasmonic waveguides. | Keywords: | Dielectric waveguides Electric domains Ferroelectric materials Ferroelectric storage Fullerene devices Graphene Nanostructured materials Phonons Plasmonics Polaritons Sheet materials Surface plasmons Terahertz wave devices |
Publisher: | American Institute of Physics | Journal: | Applied physics letters | ISSN: | 0003-6951 | EISSN: | 1077-3118 | DOI: | 10.1063/1.4807762 | Rights: | © 2013 AIP Publishing LLC. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Dafei Jin et al., Appl. Phys. Lett. 102, 201118 (2013) and may be found at http://link.aip.org/link/?apl/102/201118 |
Appears in Collections: | Journal/Magazine Article |
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Jin_terahertz_plasmonics_ferroelectricgated.pdf | 1.67 MB | Adobe PDF | View/Open |
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