Baeuml, Christian and Korn, Tobias and Lange, Christoph and Schueller, Christian and Strunk, Christoph and Paradiso, Nicola (2017) Polarized surface-enhanced Raman spectroscopy of suspended carbon nanotubes by Pt-Re nanoantennas. PHYSICAL REVIEW B, 96 (3): 035408. ISSN 2469-9950, 2469-9969
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We present optical nanoantennas designed for applications that require processing temperatures larger than 800 degrees C. The antennas consist of arrays of Re/Pt bilayer strips fabricated with a lift-off-free technique on top of etched trenches. Reflectance measurements show a clear plasmonic resonance at approximately 670 nm for light polarized orthogonal to the strip axis. The functionality of the antennas is demonstrated by growing single-walled carbon nanotubes (CNTs) on top of the antenna arrays and measuring the corresponding Raman signal enhancement of selected CNTs. The results of the measurements are quantitatively discussed in light of numerical simulations which highlight the impact of the substrate.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | OPTICAL-PROPERTIES; SCATTERING; TRANSPORT; PYRIDINE; COLLOIDS; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | 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: | 14 Dec 2018 13:16 |
| Last Modified: | 28 Feb 2019 09:31 |
| URI: | https://pred.uni-regensburg.de/id/eprint/1554 |
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