Abstract
The wavelength dependence and figures of merit of the third-order optical nonlinearity of a conjugated 3,3′-bipyridine derivative, a designed nondipolar structure of the donor-acceptor-acceptor-donor type, are reported. Z scans reveal positive nonlinear refractive-index changes for wavelengths longer than the one-photon absorption wavelength. Although the value of nonlinear Kerr coefficient n 2 decreases from 6.0(±0.2) × 10-6 cm2/GW at 750 nm to 4.6(±0.7) × 10-6 cm2/GW at 1550 nm, the value of nonlinear absorption β decreases from 0.084 cm/GW at 750 nm to a negligible value at 1550 nm, giving rise to excellent nonlinearity-to-loss figures of merit at telecommunications wavelengths.
© 2003 Optical Society of America
Full Article | PDF ArticleMore Like This
Jacob B. Khurgin and Greg Sun
Opt. Express 21(22) 27460-27480 (2013)
Michael A. Erickson, Marten T. Beels, and Ivan Biaggio
J. Opt. Soc. Am. B 33(12) E130-E142 (2016)
V. Singh and P. Aghamkar
Appl. Opt. 51(13) 2288-2297 (2012)