| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 732925 | Optics & Laser Technology | 2010 | 4 Pages |
Abstract
The third-order nonlinear optical properties of polyurethane-urea/multiwalled carbon nanotube composites (PU/MWNT) films with different MWNT concentrations are investigated by the use of the Z-scan technique at a wavelength of 532 nm with a pulse duration of 8 ns. The results reveal that the nonlinear refraction and absorption coefficients are linearly dependent on the MWNT concentration. The negative nonlinear refraction effect is validated from the closed-aperture Z-scan measurements. We find that PU/MWNT films are promising nonlinear optical materials, and the nonlinear coefficients can be controlled.
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Authors
Jin Wang, Ya-Xian Fan, Jing Chen, Bing Gu, Hui-Tian Wang,