2026-08-29T14:08:04Zhttps://repisalud.isciii.es/rest/oai/request

oai:repisalud.isciii.es:20.500.12105/181022024-02-12T19:47:03Zcom_20.500.12105_15322com_20.500.12105_2051col_20.500.12105_16927

00925njm 22002777a 4500 dc Benitez-Martin, Carlos author Li, Shiming author Dominguez-Alfaro, Antonio author Najera, Francisco author Pérez-Inestrosa, Ezequiel author Pischel, Uwe author Andréasson, Joakim author 2020-08-21 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. 10.1021/jacs.0c07377 1520-5126 Journal of the American Chemical Society http://hdl.handle.net/10668/16107 32799520 http://hdl.handle.net/20.500.12105/18102 Toward Two-Photon Absorbing Dyes with Unusually Potentiated Nonlinear Fluorescence Response.