https://doi.org/10.1051/epjconf/201510306010
Electrochemical Design of Optical Nanoantennas
1 Kazan Federal University, 420000, Kazan, Kremlevskaya st., 18, Russia
2 Tatarstan Academy of sciences, 420013, Kazan, Baumana st., 20, Russia
a Corresponding author: valeriya.vasilchenko@kpfu.ru
Published online: 25 September 2015
Electrochemical techniques for fabricating tapered gold nanoantennas (tips) are discussed. In the paper, the tunable design of nanoantennas is demonstrated. Tip parameters such as a tip apex curvature, mesoscopic morphology, aspect ratio and enhancement factor can be varied with etching electrolyte and applied voltage. The low-cost method makes tipehnahced optical spectroscopy and microscopy feasible for routine optical measurements beyond the diffraction limit.
Key words: optical antennas / tip-enhanced Raman scattering / electrochemistry
© Owned by the authors, published by EDP Sciences, 2015
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
