Near-infrared photorefractive polymer composites based on carbon nanotubes |
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| Authors: | L Licea-Jiménez LYa Pereshivko VV Savelyev AV Vannikov |
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| Affiliation: | a Department of Materials and Manufacturing Technology, Chalmers University of Technology, SE-41296 Göteborg, Sweden
b A.N. Frumkin Institute of Physical Chemistry and Electrochemistry of the Russian Academy of Science, 119071 Moscow, Russia |
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| Abstract: | A photorefractive effect at the wavelength of 1064 nm is demonstrated for a composite consisting of an aromatic polyimide and carbon single wall nanotubes. The two-beam gain coupling coefficient and the net gain coefficient are equal to 90 and 65 cm−1, respectively, at 80 V/μm for a nanocomposite containing 0.25 wt% crude nanotube material. The refractive index modulation measured at E0 = 50 V/μm is close to Δn = 0.004. |
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| Keywords: | Carbon nanotubes Laser irradiation Optical properties Photoconductivity |
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