Toward Two-Photon Absorbing Dyes with Unusually Potentiated Nonlinear Fluorescence Response
Journal article, 2020

The combination of two two-photon-induced processes in a Förster resonance energy transfer (FRET)-operated photochromic fluorene-dithienylethene dyad lays the foundation for the observation of a quartic dependence of the fluorescence signal on the excitation light intensity. While this photophysical behavior is predicted for a four-photon absorbing dye, the herein proposed approach opens the way to use two-photon absorbing dyes, reaching the same performance. Hence, the spatial resolution limit, being a critical parameter for applications in fluorescence imaging or data storage with common two-photon absorbing dyes, is dramatically improved.

Author

Carlos Benitez-Martin

University of Malaga

Centro Andaluz de Nanomedicina y Biotecnologı́a (BIONAND)

Shiming Li

Chalmers, Chemistry and Chemical Engineering, Chemistry and Biochemistry

Antonio Dominguez-Alfaro

University of Huelva

Francisco Najera

University of Malaga

Centro Andaluz de Nanomedicina y Biotecnologı́a (BIONAND)

E. Perez-Inestrosa

Centro Andaluz de Nanomedicina y Biotecnologı́a (BIONAND)

University of Malaga

Uwe Pischel

University of Huelva

Joakim Andreasson

Chalmers, Chemistry and Chemical Engineering, Chemistry and Biochemistry

Journal of the American Chemical Society

0002-7863 (ISSN) 1520-5126 (eISSN)

Vol. 142 35 14854-14858

Subject Categories

Accelerator Physics and Instrumentation

Atom and Molecular Physics and Optics

Other Physics Topics

DOI

10.1021/jacs.0c07377

PubMed

32799520

More information

Latest update

9/21/2020