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Ultrafast optical switching properties of single-wall carbon nanotube polymer composites at 1.55 μm

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8 Author(s)
Chen, Y.-C. ; Department of Physics, Applied Physics, and Astronomy, and Center for Integrated Electronics, Rensselaer Polytechnic Institute, Troy, New York 12180-3590 ; Raravikar, N.R. ; Schadler, L.S. ; Ajayan, P.M.
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Using a pump–probe method with a 150 fs laser at the wavelength of 1.55 μm, we have experimentally demonstrated that single-walled carbon nanotubes (SWNT) have an exciton decay time of less than 1 ps and a high third-order polarizability, which is reasonably interpreted as due to their azimuthal symmetry. These experimental results reveal that a SWNT polymer composite may be a candidate material for high-quality subpicosecond all-optical switches. © 2002 American Institute of Physics.

Published in:

Applied Physics Letters  (Volume:81 ,  Issue: 6 )

Date of Publication:

Aug 2002

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