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- Title
Photorefractive Polymer Composites for the IR Region Based on Carbon Nanotubes.
- Authors
Vannikov, A. V.; Rychwalski, R. W.; Grishina, A. D.; Pereshivko, L. Ya.; Krivenko, T. V.; Savel'ev, V. V.; Zolotarevski&ĭ, V. I.
- Abstract
The photorefractive properties of polymer composites based on aromatic polyimide and single-wall carbon nanotubes are studied using radiation at a wavelength of 1064 nm. It is found that the nanotubes possess photoelectric sensitivity in this spectral region and that the kinetic photorefractive characteristics of the polymer composites are entirely determined by the photogeneration and charge transport characteristics of the layers. The two-beam gain coefficient of the signal beam measured for a composite consisting of aromatic polyimide and 0.25 wt % of single-wall carbon nanotubes in a constant electric field E0 = 79V/μm is equal to 84cm–1 and exceeds the optical absorption coefficient by 59cm–1. The refractive index modulation is equal to Δn = 0.004 at E0 = 54V/μm. © 2005 Pleiades Publishing, Inc.
- Subjects
PHOTOREFRACTIVE materials; ELECTROOPTIC materials; POLYMERS; NANOTUBES; POLYIMIDES
- Publication
Optics & Spectroscopy, 2005, Vol 99, Issue 4, p643
- ISSN
0030-400X
- Publication type
Article
- DOI
10.1134/1.2113384