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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 20 — Oct. 2, 2006
  • pp: 8958–8966

Gravitation-dependent, thermally-induced self-diffraction in carbon nanotube solutions

Wei Ji, Weizhe Chen, Sanhua Lim, Jianyi Lin, and Zhixin Guo  »View Author Affiliations

Optics Express, Vol. 14, Issue 20, pp. 8958-8966 (2006)

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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.

© 2006 Optical Society of America

OCIS Codes
(050.1940) Diffraction and gratings : Diffraction
(120.4640) Instrumentation, measurement, and metrology : Optical instruments
(160.4760) Materials : Optical properties

ToC Category:
Diffraction and Gratings

Original Manuscript: April 6, 2006
Revised Manuscript: June 28, 2006
Manuscript Accepted: July 12, 2006
Published: October 2, 2006

Wei Ji, Weizhe Chen, Sanhua Lim, Jianyi Lin, and Zhixin Guo, "Gravitation-dependent, thermally-induced self-diffraction in carbon nanotube solutions," Opt. Express 14, 8958-8966 (2006)

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