Vibrational-infrared near-field microscopy

Keilmann, F.

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Vibrational-infrared near-field microscopy

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Keilmann, F.
Baumeister, Wolfgang / Molecular Structural Biology, Max Planck Institute of Biochemistry, Max Planck Society;

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Keilmann, F. (2002). Vibrational-infrared near-field microscopy. Vibrational Spectroscopy, 29(1-2), 109-114.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0010-6ED2-7

Abstract

Abbe's diffraction limit did in the past prevent the analytical tool of vibrational-infrared spectroscopy from reaching beyond a spatial resolution of lambda/2. This limit has been overcome with the invention of near-field proximal probes. Here we emphasize scattering-type scanning near-field infrared microscopy (s-SNIM) which offers two unique advantages for vibrational-absorption-based microscope contrast: (i) spatial resolution of <30 nm, and (ii) enhanced infrared absorption, together enabling "chemical" microscopy of even weakly- absorbing nanometric samples. (C) 2002 Elsevier Science B.V. All rights reserved.