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Plasmon resonance in individual nanogap electrodes studied using graphene nanoconstrictions as photodetectors.
- Source :
-
Nano letters [Nano Lett] 2011 Apr 13; Vol. 11 (4), pp. 1814-8. Date of Electronic Publication: 2011 Mar 24. - Publication Year :
- 2011
-
Abstract
- We achieve direct electrical readout of the wavelength and polarization dependence of the plasmon resonance in individual gold nanogap antennas by positioning a graphene nanoconstriction within the gap as a localized photodetector. The polarization sensitivities can be as large as 99%, while the plasmon-induced photocurrent enhancement is 2-100. The plasmon peak frequency, polarization sensitivity, and photocurrent enhancement all vary between devices, indicating the degree to which the plasmon resonance is sensitive to nanometer-scale irregularities.
Details
- Language :
- English
- ISSN :
- 1530-6992
- Volume :
- 11
- Issue :
- 4
- Database :
- MEDLINE
- Journal :
- Nano letters
- Publication Type :
- Academic Journal
- Accession number :
- 21434673
- Full Text :
- https://doi.org/10.1021/nl200522t