title: Gravitation-dependent, thermally-induced self-diffraction in carbon nanotube solutions.
abstract: We report the observation of thermally-induced self-diffraction in carbon nanotube (CNT) solutions under the influence of the gravity. We present a theoretical model in which CNTs are assumed to obey the Boltzmman distribution law. Under the approximations of small temperature rise and a very narrow distribution of CNT masses, the model simulation is consistent with the data measured at low laser powers. An immediate application of such a gravitation-dependent characteristic is the optical measurement for molecular weights of CNTs.
authors.forename: Wei
authors.initials: W
authors.lastname: Ji
authors.forename: Weizhe
authors.initials: W
authors.lastname: Chen
authors.forename: Sanhua
authors.initials: S
authors.lastname: Lim
authors.forename: Jianyi
authors.initials: J
authors.lastname: Lin
authors.forename: Zhixin
authors.initials: Z
authors.lastname: Guo