Nano Research

Article Title

Polarized light microscopy and spectroscopy of individual single-walled carbon nanotubes


Carbon nanotube, microscopy, luminescence, absorption, polarization, homodyne


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.

Graphical Abstract


Tsinghua University Press