Applied Physics B

, 91:521

Nonlinear optical and optical limiting properties of individual single-walled carbon nanotubes

Article

DOI: 10.1007/s00340-008-2999-1

Cite this article as:
Wang, J. & Blau, W. Appl. Phys. B (2008) 91: 521. doi:10.1007/s00340-008-2999-1

Abstract

A large number of individual single-walled carbon nanotubes (SWNTs) were obtained by dilution of nanotube dispersions in N-methyl-2-pyrrolidone (NMP). Up to 70% individual SWNTs are contained in the NMP dispersions with concentrations of less than 4.0×10-3 mg/mL. The nonlinear optical and optical limiting properties of SWNT dispersions were studied by using the Z-scan technique at 532 nm. As the concentration of SWNTs is increased, the nonlinear extinction (NLE) and optical limiting effects improve significantly, while the limiting thresholds decrease gradually. The individual SWNTs show similar NLE effect to zinc phthalocyanine nanoparticles, while also exhibiting larger NLE coefficients than Mo6S4.5I4.5 nanowires.

Copyright information

© Springer-Verlag 2008

Authors and Affiliations

  1. 1.School of PhysicsTrinity College DublinDublinIreland