Roy, D; Knight, A E (2009) Scanning near-field optical and related techniques. In: Encyclopedia of Spectroscopy and Spectrometry (second edition). Academic Press, pp. 2457-2463. ISBN 9780123744173

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Abstract

It is often desirable in imaging or spectroscopy to reduce the volume in which incident light irradiates a sample. The aim may be to improve the spatial resolution of a technique, to selectively probe a specific location, or to detect single molecules. One way of achieving this is to use near field optics. This refers the behavior of light propagating near to a surface, rather than light that is propagating through a medium (as in the more familiar far field optics). Near field optics permits the selective excitation of fluorescence or the high-resolution enhancement of Raman microscopy, beyond the resolution limits which affect conventional optics.

Item Type:	Book Chapter/Section
Keywords:	scanning near-field optical microscopy, total internal reflection fluorescence
Subjects:	Biotechnology Biotechnology > Bio-Diagnostics
Publisher:	Academic Press
Last Modified:	02 Feb 2018 13:15
URI:	https://eprintspublications.npl.co.uk/id/eprint/4652