Strong two-photon absorption at telecommunications wavelengths in nickel bis(dithiolene) complexes

Jian-Yang Cho; Stephen Barlow; Seth R. Marder; Jie Fu; Lazaro A. Padilha; Eric W. Van Stryland; David J. Hagan; Maximilienne Bishop

doi:10.1364/OL.32.000671

Optics Letters
Vol. 32,
Issue 6,
pp. 671-673
(2007)
•https://doi.org/10.1364/OL.32.000671

Strong two-photon absorption at telecommunications wavelengths in nickel bis(dithiolene) complexes

Jian-Yang Cho, Stephen Barlow, Seth R. Marder, Jie Fu, Lazaro A. Padilha, Eric W. Van Stryland, David J. Hagan, and Maximilienne Bishop

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Jian-Yang Cho, Stephen Barlow, Seth R. Marder, Jie Fu, Lazaro A. Padilha, Eric W. Van Stryland, David J. Hagan, and Maximilienne Bishop, "Strong two-photon absorption at telecommunications wavelengths in nickel bis(dithiolene) complexes," Opt. Lett. 32, 671-673 (2007)

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Abstract

The two-photon absorption spectrum of a nickel bis(dithiolene) complex with extended conjugation and π-donor substitution is measured by using Z-scan and pump–probe techniques with femtosecond pulses over the spectral range from $1.20 to 1.58 μ m$ , which includes much of the telecommunications range. The peak two-photon cross section of over $5000 GM$ $(1 GM = 10^{- 50} {cm}^{4} s {photon}^{- 1} {molecule}^{- 1})$ occurs at $\sim 1.24 μ m$ , with significant two-photon absorption $(> 440 GM)$ throughout the spectral range examined.

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Optics Letters