Affiliation:
1. National Institute of Technology
Abstract
We have investigated the third order nonlinear optical properties of pyrrole Schiff bases synthesized by condensing pyrrole-2-carboxaldehyde with two different diamines. The nonlinear optical measurements were performed using the nano- second laser pulses at 532nm wavelengthby employing the Z-scan technique. The Z- scan spectra reveal a large negative non-linear refraction co-efficient .The nonlinear refractive index was found to be of the order of 10-14cm2/W and the magnitude of third order susceptibility was of the order of 10-13esu. These compounds exhibit good optical power limiting property under nano-second regime and TPA (Two Photon Absorption) is the dominating process leading to the non-linear behavior.
Publisher
Trans Tech Publications, Ltd.
Reference9 articles.
1. P. N. Prasad , David J. Williams, in: Introduction to non linear optical effects in molecules and polymers, John Wiley& Sons, NY, (1991).
2. J.L. Bredas, C. Adant, P. Tacks and A. Persoons: Chem. Rev. Vol 94(1994), p.243.
3. A. Facchetti, L. Beverina, M.E. Van der Boom, E.G. Dutta and T.J. Marks: J. Am. Chem. Soc. vol. 128(2006), p.2142 and references cited therein.
4. I. D. L. Albert, T. J. Marks, and M. A. Ratner:J. Am. Chem. Soc. Vol. 119(1997), p.6575.
5. E.M. Breitung , F. Shu and R.J. McMahon: J. Am. Chem. Soc. Vol. 122(2000), p.1154.
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