TY - JOUR
T1 - Electrochemical design of plasmonic nanoantennas for tip-enhanced optical spectroscopy and imaging performance
AU - Kharintsev, Sergey
AU - Alekseev, Alexander
AU - Vasilchenko, Valeria
AU - Kharitonov, Anton
AU - Salakhov, Myakzyum
N1 - Publisher Copyright:
© 2015 Optical Society of America.
Copyright:
Copyright 2015 Elsevier B.V., All rights reserved.
PY - 2015
Y1 - 2015
N2 - Optical nanoantennas play a crucial role in controlling near-fields on the nanoscale and being counterparts of commonly used conventional optical components such as lens, prisms, gratings, etc. for shaping the wavefront of light in the far-field. In this paper we highlight a dc-pulsed voltage electrochemical etching method with a self-tuneable duty cycle for highly reproducible design of plasmonic (metallic) nanoantennas. With the method, we introduce such concepts as design, optimization and figure-ofmerit for evaluating fabrication efficiency. The ability of the nanoantennas to enhance and localize the optical fields beyond the diffraction limit is statistically studied with Rayleigh scattering from the tip apex and tipenhanced Raman spectroscopy of a single walled carbon nanotubes bundle.
AB - Optical nanoantennas play a crucial role in controlling near-fields on the nanoscale and being counterparts of commonly used conventional optical components such as lens, prisms, gratings, etc. for shaping the wavefront of light in the far-field. In this paper we highlight a dc-pulsed voltage electrochemical etching method with a self-tuneable duty cycle for highly reproducible design of plasmonic (metallic) nanoantennas. With the method, we introduce such concepts as design, optimization and figure-ofmerit for evaluating fabrication efficiency. The ability of the nanoantennas to enhance and localize the optical fields beyond the diffraction limit is statistically studied with Rayleigh scattering from the tip apex and tipenhanced Raman spectroscopy of a single walled carbon nanotubes bundle.
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U2 - 10.1364/OME.5.002225
DO - 10.1364/OME.5.002225
M3 - Article
AN - SCOPUS:84947434019
VL - 5
SP - 2225
EP - 2230
JO - Optical Materials Express
JF - Optical Materials Express
SN - 2159-3930
IS - 10
ER -