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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 18, Iss. 8 — Aug. 1, 2001
  • pp: 1099–1103

Third-order nonlinear optical properties of undoped polyaniline solutions and films probed at 532 nm

Glauco S. Maciel, Arandi G. Bezerra, Jr., Nikifor Rakov, Cid B. de Araújo, Anderson S. L. Gomes, and Walter M. de Azevedo  »View Author Affiliations


JOSA B, Vol. 18, Issue 8, pp. 1099-1103 (2001)
http://dx.doi.org/10.1364/JOSAB.18.001099


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Abstract

The third-order nonlinear optical properties of polyaniline (PANI) solutions and films were investigated at 532 nm by use of Z-scan, power limiting, and optical Kerr gate techniques. The polymers studied were the undoped partially oxidized (emeraldine base) and fully reduced (leucoemeraldine base) forms of PANI. Our results demonstrate that the leucoemeraldine base is more suitable for use in devices such as all-optical switches and optical power limiters operating at 532 nm. The worse performance of the emeraldine base is due to the presence of defects inside the bandgap of the polymer.

© 2001 Optical Society of America

OCIS Codes
(160.5470) Materials : Polymers
(190.4710) Nonlinear optics : Optical nonlinearities in organic materials

Citation
Glauco S. Maciel, Arandi G. Bezerra, Jr., Nikifor Rakov, Cid B. de Araújo, Anderson S. L. Gomes, and Walter M. de Azevedo, "Third-order nonlinear optical properties of undoped polyaniline solutions and films probed at 532 nm," J. Opt. Soc. Am. B 18, 1099-1103 (2001)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-18-8-1099


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