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Updated: Jan 21, 2026

Precision Milling of Carbon Nanotube Forests Using Low Pressure Scanning Electron Microscopy
Published on: February 5, 2017
On-chip Rayleigh imaging and spectroscopy of carbon nanotubes
Daniel Y Joh1, Lihong H Herman, Sang-Yong Ju
1School of Applied and Engineering Physics, Cornell University, Ithaca, New York 14853, USA. .
Abstract:
We report a novel on-chip Rayleigh imaging technique using wide-field laser illumination to measure optical scattering from individual single-walled carbon nanotubes (SWNTs) on a solid substrate with high spatial and spectral resolution. This method in conjunction with calibrated AFM measurements accurately measures the resonance energies and diameters for a large number of SWNTs in parallel. We apply this technique for fast mapping of key SWNT parameters, including the electronic-types and chiral indices for individual SWNTs, position and frequency of chirality-changing events, and intertube interactions in both bundled and distant SWNTs.
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