Novel Heterocycle-Based Two-Photon Absorbing Dyes

Alessandro Abbotto*, Luca Beverina, Renato Bozio, Antonio Facchetti, Camilla Ferrante, Giorgio A. Pagani, Danilo Pedron, Raffaella Signorini

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

210 Scopus citations


(matrix presented) The synthesis and nonlinear optical characterization of two novel heteroaromatic-based chromophores is described. The new dyes present an A-π-D-π-A general framework, where A is a π-deficient heteroaromatic ring (pyridine, quinoline, benzothiazole) and D a π-excessive pyrrolyl moiety. Both systems exhibit large two-photon absorption (TPA) values in the femtoseconds regime (TPA cross section as high as 150 x 10-50 cm4 s photon-1 molecule-1 with 150 fs laser pulses). Their TPA-based optical limiting activity is also shown.

Original languageEnglish (US)
Pages (from-to)1495-1498
Number of pages4
JournalOrganic Letters
Issue number9
StatePublished - May 2 2002

ASJC Scopus subject areas

  • Biochemistry
  • Physical and Theoretical Chemistry
  • Organic Chemistry


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