Abstract

Laser-scanning-assisted tip-enhanced optical microscopy was developed for robust optical nanospectroscopy. The laser-scanning system was utilized to automatically set and keep the center of a tight laser-focusing spot in the proximity of a metallic tip with around 10 nm precision. This enabled us to efficiently and stably induce plasmon-coupled field enhancement at the apex of the metallic probe tip. The laser-scanning technique was also applied to tracking and compensating the thermal drift of the metallic tip in the spot. This technique is usable for long-term tip-enhanced optical spectroscopy without any optical degradation.

© 2016 The Author(s)

Simulations of atomic resolution tip-enhanced optical microscopy

Andrew Downes, Donald Salter, and Alistair Elfick
Opt. Express 14(23) 11324-11329 (2006)

Heating effects in tip-enhanced optical microscopy

Andrew Downes, Donald Salter, and Alistair Elfick
Opt. Express 14(12) 5216-5222 (2006)

Generation of broadband longitudinal fields for applications to ultrafast tip-enhanced near-field microscopy

Kentaro Furusawa, Norihiko Hayazawa, Takayuki Okamoto, Takuo Tanaka, and Satoshi Kawata
Opt. Express 19(25) 25328-25336 (2011)

Effect of the gold crystallinity on the enhanced luminescence signal of scanning probe tips in apertureless near-field optical microscopy

Gitanjali Kolhatkar, Julien Plathier, Alain Pignolet, and Andreas Ruediger
Opt. Express 25(21) 25929-25937 (2017)

Electrochemical design of plasmonic nanoantennas for tip-enhanced optical spectroscopy and imaging performance

Sergey Kharintsev, Alexander Alekseev, Valeria Vasilchenko, Anton Kharitonov, and Myakzyum Salakhov
Opt. Mater. Express 5(10) 2225-2230 (2015)