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Synthesis and Nonlinear Optical Characterization of a New Two‐photon Absorbing Organic Dye: DMAHAS
Author(s) -
YunXing Yan,
Dong Wang,
Xian Zhao,
XuTang Tao,
MinHua Jiang
Publication year - 2003
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.20030210610
Subject(s) - chemistry , fluorescence , absorption (acoustics) , two photon absorption , two photon excitation microscopy , photochemistry , proton nmr , photon , analytical chemistry (journal) , laser , optics , organic chemistry , physics
Trans ‐4‐( N, N' ‐dimethyl amino)‐4′‐( N ‐hydroxyethyl‐ N '‐ethyl amino) stilbene (DMAHAS) has been synthesized and characterized by 1 H NMR spectra, ER spectra and elemental analysis. Linear absorption, single‐photon induced fluorescence and two‐photon induced fluorescence were experimentally studied. This new dye has a moderate two‐photon absorption cross‐section of σ 2 = 0.91 × 10– 46 cm 4 · s/photon at 532 nm by using an open aperture Z‐scan technique. The result indicates that DMAHAS shows a strong two‐photon induced blue fluorescence of 432 nm when pumped with 800 nm laser irradiation.