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Two-photon solvatochromism. I. Solvent effects on two-photon absorption cross section of 4-dimethylamino-4′-nitrostilbene (DANS)

Authors
Journal
Chemical Physics Letters
0009-2614
Publisher
Elsevier
Publication Date
Volume
554
Identifiers
DOI: 10.1016/j.cplett.2012.10.013
Disciplines
  • Physics

Abstract

Abstract This Letter reports a systematic study of solvent effect on two-photon absorption (2PA) spectra of a model chromophore, 4-dimethylamino-4′-nitrostilbene (DANS). The two-photon solvatochromic behavior of DANS was investigated in selected solvents using the Z-scan measurement technique. The obtained results demonstrate that the examined molecule possesses slightly different 2PA response in solvents of different polarity. A decrease in the two-photon absorption strength is observed when the solvent is changed from chloroform and dichloromethane to the more polar dimethyl sulfoxide.

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