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arXiv · 2005.05160

Hyperspectral Nanomotion Microscopy

Tongjun Liu·Jun-Yu Ou·Kevin F. MacDonald·Nikolay I. Zheludev
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Abstract

We have developed a technique that extends static scanning electron microscopic imaging to include hyperspectral mapping of fast thermal and externally-driven movements at up to Megahertz frequencies. It is based on spectral analysis of the secondary electron flux generated by a focused electron beam incident on the moving object. We demonstrate detection of nanowire Brownian motion and hyperspectral mapping of stimulated oscillations of flea setae with deep sub-nanometer displacement sensitivity.

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Tongjun Liu, Jun-Yu Ou, Kevin F. MacDonald, Nikolay I. Zheludev. 2020-05-11. Hyperspectral Nanomotion Microscopy. https://doi.org/10.1039/d0na01068e

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