Upconversion fluorescence and optical power limiting effects based on the two- and three-photon absorption process of a new organic dye BPAS

Applied Optics
Guangyong ZhouMinhua Jiang

Abstract

A new organic dye, trans-4, 4'-bis(pyrrolidingl) stilbene (BPAS), with large two-photon absorption (TPA) and three-photon absorption (3PA) has been synthesized. The molecular TPA cross section sigma2' at 550-670 nm and the 3PA cross section sigma3' at 720-1000 nm have been measured. The biggest sigma2' and sigma3' was 5.77 x 10(-47) cm4s/photon and 27 x 10(-75) cm6 s2 at 600 and 980 nm, respectively. In the experiment process we found that the strongest TPA wavelength is not at two times of the strongest linear absorption wavelength, but there is some blue shift. The 3PA-induced optical power-limiting properties have also been illustrated at 980 nm.

References

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Citations

Nov 10, 2006·The Journal of Chemical Physics·Ion CohanoschiFlorencio E Hernández
Oct 22, 2004·Applied Optics·Florencio E HernándezKatherine J Schafer
Aug 28, 2007·Photochemical & Photobiological Sciences : Official Journal of the European Photochemistry Association and the European Society for Photobiology·Sean MathaiKenneth P Ghiggino
Aug 15, 2003·Applied Optics·Pengfei WuBarry S DeCristofano
Mar 22, 2008·The Journal of Physical Chemistry. B·Na LinYi Luo

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