Abstract:
In this thesis, the Purcell effect in polymer thin films is studied. According to the Purcell effect, fluorescence of an atom or molecule can be enhanced or inhibited when it is confined to microcavity. As an application of the Purcell effect, fluorescence lifetime measurements of perylene dye molecules, which are embedded in PEG film, is studied using time-correlated single photon-counting techniques. The emission rate of perylene dye molecules are enhanced due to the photonic cavity effect. An inhibition in the lifetime value of the perylene dye molecules is observed to change from 3.67 ns to 1.55 ns.
