A systematic femtosecond study on the two-​photon absorbing D-​π-​A molecules - π-​bridge nitrogen insertion and strength of the donor and acceptor groups

Fadhil S. Kamounah, liudmil Antonov, Kenji Kamada, Koji Ohta

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The two-photon absorption (2PA) properties of a series of dyes containing donor and acceptor groups connected via a π-electronic bridge were studied by using a femtosecond Z-scan technique. It was found that the nature of the π-electronic bridge does not substantially affect the measured 2PA intensities. In the case of the substituted azobenzenes the decrease of the strength of the donor and/or acceptor groups leads to decrease of the 2PA intensity, the effect of the acceptor strength being greater.
TidsskriftPhysical Chemistry Chemical Physics
Udgave nummer6
Sider (fra-til)1193-1197
Antal sider5
StatusUdgivet - 2003
Udgivet eksterntJa

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