Polarized light microscopy and spectroscopy of individual single-walled carbon nanotubes |
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| Authors: | Jacques Lefebvre Paul Finnie |
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| Affiliation: | (1) Institute for Microstructural Sciences, National Research Council, Ottawa, Canada, K1A 0R6 |
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| Abstract: | Polarized light microscopy (PLM) is used to image individual single-walled carbon nanotubes (SWNTs) suspended in air across
a slit opening. The imaging contrast relies on the strong optical anisotropy typical of SWNTs. We combine PLM with a tunable
light source to enable hyperspectral excitation spectroscopy and nanotube chirality assignment. Comparison with fluorescence
microscopy and spectroscopy confirms the assignment made with PLM. This represents a versatile new approach to imaging SWNTs
and related structures.
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| Keywords: | Carbon nanotube microscopy luminescence absorption polarization homodyne |
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