Extended squaraine dyes with large two-photon absorption cross-sections

Sung Jae Chung, Shijun Zheng, Toru Odani, Luca Beverina, Jie Fu, Lazaro A. Padilha, Arianna Biesso, Joel M. Hales, Xiaowei Zhan, Karin Schmidt, Aijun Ye, Egbert Zojer, Stephen Barlow, David J. Hagan, Eric W. Van Stryland, Yuanping Yi, Zhigang Shuai, Giorgio A. Pagani, Jean Luc Brédas, Joseph W. PerrySeth R. Marder*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

219 Scopus citations


Extended bis(donor)-substituted squaraine chromophores exhibit very high two-photon cross-sections (as high as 33000 GM) in the near-IR; these can be attributed to the combination of large transition dipoles with small detuning energies. The modulus of the third-order nonlinear optical susceptibility at 1.3 μm has been found to be 7.0 × 10-11 esu for one of these chromophores.

Original languageEnglish (US)
Pages (from-to)14444-14445
Number of pages2
JournalJournal of the American Chemical Society
Issue number45
StatePublished - Nov 15 2006
Externally publishedYes

ASJC Scopus subject areas

  • Catalysis
  • General Chemistry
  • Biochemistry
  • Colloid and Surface Chemistry


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