A gold-nanotip optical fiber for plasmon-enhanced near-field detection

Uebel, P.; Bauerschmidt, S. T.; Schmidt, M. A.; Russell, P. St. J.

doi:10.1063/1.4813115

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A gold-nanotip optical fiber for plasmon-enhanced near-field detection

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Uebel, P.
Russell Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Bauerschmidt, S. T.
Russell Division, Max Planck Institute for the Science of Light, Max Planck Society;
International Max Planck Research School, Max Planck Institute for the Science of Light, Max Planck Society;

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Schmidt, M. A.
Russell Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Russell, P. St. J.
Russell Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Citation

Uebel, P., Bauerschmidt, S. T., Schmidt, M. A., & Russell, P. S. J. (2013). A gold-nanotip optical fiber for plasmon-enhanced near-field detection. APPLIED PHYSICS LETTERS, 103(2): 021101. doi:10.1063/1.4813115.

Cite as: https://hdl.handle.net/11858/00-001M-0000-002D-6747-D

Abstract

A wet-chemical etching and mechanical cleaving technique is used to fabricate gold nanotips attached to tapered optical fibers. Localized surface plasmon resonances (tunable from 500 to 850 nm by varying the tip dimensions) are excited at the tip, and the signal is transmitted via the fiber to an optical analyzer, making the device a plasmon-enhanced near-field probe. A simple cavity model is used to explain the resonances observed in numerical simulations. (C) 2013 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution 3.0 Unported License.