Paradiso, Nicola and Yaghobian, Fatemeh and Lange, Christoph and Korn, Tobias and Schueller, Christian and Huber, Rupert and Strunk, Christoph (2015) Tailored nanoantennas for directional Raman studies of individual carbon nanotubes. PHYSICAL REVIEW B, 91 (23): 235449. ISSN 2469-9950, 2469-9969
Full text not available from this repository. (Request a copy)Abstract
We exploit the near field enhancement of nanoantennas to investigate the Raman spectra of otherwise not optically detectable carbon nanotubes (CNTs). We demonstrate that a top-down fabrication approach is particularly promising when applied to CNTs, owing to the sharp dependence of the scattered intensity on the angle between incident light polarization and CNT axis. In contrast to tip enhancement techniques, our method enables us to control the light polarization in the sample plane, locally amplifying and rotating the incident field and hence optimizing the Raman signal. Such promising features are confirmed by numerical simulations presented here. The relative ease of fabrication and alignment makes this technique suitable for the realization of integrated devices that combine scanning probe, optical, and transport characterization.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | PROPAGATING SURFACE-PLASMON; SPECTROSCOPY; SCATTERING; GRAPHENE; SILVER; POLARITONS; EXCITATION; ANTENNAS; OPTICS; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Chair Professor Huber > Group Rupert Huber Physics > Institute of Experimental and Applied Physics > Chair Professor Lupton > Group Christian Schüller Physics > Institute of Experimental and Applied Physics > Chair Professor Weiss > Group Christoph Strunk |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 10 Jul 2019 13:04 |
| Last Modified: | 10 Jul 2019 13:04 |
| URI: | https://pred.uni-regensburg.de/id/eprint/5293 |
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