Abstract
We present ultrafast z-scan measurements of the two-photon absorption (TPA) spectra of a pair of two-dimensionally conjugated quadrupolar donor/acceptor (D/A) chromophores. The all-donor substituted species displays a peak TPA cross section that is more than twice that of the D–A species . Unlike previous structure–property studies that have evaluated TPA behavior for D/A molecules through the comparison of dipolar and quadrupolar compounds, both molecules investigated herein are quadrupolar, ultimately providing a more consistent evaluation of the effects of donor and/or acceptor substitution on the TPA of conjugated chromophores.
© 2006 Optical Society of America
Full Article | PDF ArticleMore Like This
Jian-Yang Cho, Stephen Barlow, Seth R. Marder, Jie Fu, Lazaro A. Padilha, Eric W. Van Stryland, David J. Hagan, and Maximilienne Bishop
Opt. Lett. 32(6) 671-673 (2007)
Jie Fu, Lazaro A. Padilha, David J. Hagan, Eric W. Van Stryland, Olga V. Przhonska, Mikhail V. Bondar, Yuriy L. Slominsky, and Alexei D. Kachkovski
J. Opt. Soc. Am. B 24(1) 67-76 (2007)
Javier Pérez-Moreno, Yuxia Zhao, Koen Clays, and Mark G. Kuzyk
Opt. Lett. 32(1) 59-61 (2007)