Optical response of fluorescent molecules studied by synthetic femtosecond laser pulses
1 Department of Chemistry, Michigan State University, East Lansing, MI 48824, USA
2 Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, USA
The optical response of the fluorescent molecule IR144 in solution is probed by pairs of collinear pulses with intensity just above the linear dependence using two different pulse shaping methods. The first approach mimics a Michelson interferometer while the second approach, known as multiple independent comb shaping (MICS), eliminates spectral interference. The comparison of interfering and non-interfering pulses reveals that experimental information can be lost at early delay times because of linear interference between the pulses.
© Owned by the authors, published by EDP Sciences, 2013
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