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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 24 — Nov. 19, 2012
  • pp: 26845–26851

Femtosecond third-order optical nonlinearity of an azobenzene-containing ionic liquid crystalline polymer

Fuli Zhao, Changshun Wang, Jinwen Zhang, and Yi Zeng  »View Author Affiliations


Optics Express, Vol. 20, Issue 24, pp. 26845-26851 (2012)
http://dx.doi.org/10.1364/OE.20.026845


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Abstract

The nonlinear optical properties of an azobenzene-containing ionic liquid crystalline polymer were investigated using single beam Z-scan and optical Kerr effect (OKE) techniques. The nonlinear refractive index of electronic origin (3.1×10−19 m2/W) and the nonlinear absorption coefficient (3.63×10−13 m/W) were determined with 800 nm femtosecond laser pulses at a repetition rate of 1 KHz. The corresponding one-photon and two-photon figures of merit are determined to be 6.05 and 0.94, respectively, at irradiance of 50 GW/cm2. The response time of the observed nonlinearities is estimated to be as fast as 300 fs. These experiment results demonstrate that the polymer is a promising candidate for applications in all-optical switching modulators and nonlinear photonic devices.

© 2012 OSA

OCIS Codes
(190.0190) Nonlinear optics : Nonlinear optics
(190.4400) Nonlinear optics : Nonlinear optics, materials

ToC Category:
Nonlinear Optics

History
Original Manuscript: September 25, 2012
Revised Manuscript: October 29, 2012
Manuscript Accepted: October 31, 2012
Published: November 14, 2012

Citation
Fuli Zhao, Changshun Wang, Jinwen Zhang, and Yi Zeng, "Femtosecond third-order optical nonlinearity of an azobenzene-containing ionic liquid crystalline polymer," Opt. Express 20, 26845-26851 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-24-26845


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