Photorefractive polymer composites for the IR region based on carbon nanotubes
Journal article, 2005

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 E 0 = 79 V/μm is equal to 84 cm -1 and exceeds the optical absorption coefficient by 59 cm -1 . The refractive index modulation is equal to Δn = 0.004 at E 0 = 54 V/μm. © 2005 Pleiades Publishing, Inc.

Author

Anatoly Vannikov

Russian Academy of Sciences

Rodney Rychwalski

Chalmers, Materials and Manufacturing Technology, Polymeric Materials and Composites

A Grishina

Russian Academy of Sciences

L. Ya. Pereshivko

Russian Academy of Sciences

T. V. Krivenko

Russian Academy of Sciences

V. V. Savelev

Russian Academy of Sciences

V. I. Zolotrarevskii

Russian Academy of Sciences

Optics and Spectroscopy (English translation of Optika i Spektroskopiya)

0030-400X (ISSN) 1562-6911 (eISSN)

Vol. 99 4 pp.643-648

Subject Categories

Materials Engineering

DOI

10.1134/1.2113384

More information

Latest update

4/16/2018