Extended Squaraine Dyes with Large Two-Photon Absorption Cross-Sections

Extended Squaraine Dyes with Large Two-Photon Absorption Cross-Sections

Extended bis(donor)-substituted squaraine chromophores exhibit very high two-photon cross-sections (as high as 33 000 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 susceptibili...

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Veröffentlicht in:Journal of the American Chemical Society 2006-11, Vol.128 (45), p.14444-14445
Hauptverfasser: Chung, Sung-Jae, Zheng, Shijun, Odani, Toru, Beverina, Luca, Fu, Jie, Padilha, Lazaro A, Biesso, Arianna, Hales, Joel M, Zhan, Xiaowei, Schmidt, Karin, Ye, Aijun, Zojer, Egbert, Barlow, Stephen, Hagan, David J, Van Stryland, Eric W, Yi, Yuanping, Shuai, Zhigang, Pagani, Giorgio A, Brédas, Jean-Luc, Perry, Joseph W, Marder, Seth R
Format: Artikel
Sprache:eng
Schlagworte:
Alicyclic compounds
Alicyclic compounds, terpenoids, prostaglandins, steroids
Chemistry
Exact sciences and technology
General and physical chemistry
Organic chemistry
Preparations and properties
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Zusammenfassung:Extended bis(donor)-substituted squaraine chromophores exhibit very high two-photon cross-sections (as high as 33 000 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.
ISSN:0002-7863
1520-5126
DOI:10.1021/ja065556m