Hooray!!! This issue of the PNAS contains an article co-authored by Rodrigo Capaz: “Systematic determination of absolute absorption cross-section of individual carbon nanotubes”.

In this contribution, they develop a technique to determine the cross section for light absorption of a single carbon nanotube at a time! Comparing with theory, they were able to understand how the absorption spectra relate to the exciton oscillator strength and lifetime, as well as the chirality of the nanotube under analysis.