Measurement of complex optical susceptibility for individual carbon nanotubes by elliptically polarized light excitation.

ABSTRACT: The complex optical susceptibility is the most fundamental parameter characterizing light-matter interactions and determining optical applications in any material. In one-dimensional (1D) materials, all conventional techniques to measure the complex susceptibility become invalid. Here we report a methodology to measure the complex optical susceptibility of individual 1D materials by an elliptical-polarization-based optical homodyne detection. This method is based on the accurate manipulation of interference between incident left- (right-) handed elliptically polarized light and the scattering light, which results in the opposite (same) contribution of the real and imaginary susceptibility in two sets of spectra. We successfully demonstrate its application in determining complex susceptibil

SUBMITTER: Yao F 

PROVIDER: S-EPMC6107641 | biostudies-literature | 2018 Aug

REPOSITORIES: biostudies-literature