Mapping the confined optical field in a microcavity via the emission from a conjugated polymer

D. G. Lidzey, D. D.C. Bradley, M. A. Pate, J. P.R. David, D. M. Whittaker, T. A. Fisher, M. S. Skolnick

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19 Scopus citations

Abstract

The distribution of a confined optical field within a microcavity was determined using a thin layer of the fluorescent conjugated polymer (PPV) as a probe of the optical field amplitude. The results confirm that the emission from a dipole placed within a microcavity can be controlled by coupling it to the optical modes within the cavity. In cavities where the polymer was placed at a field antinode, the forward PL intensity was enhanced by 15 times. By utilizing a thin fluorescent layer, this replicated the situation occurring in organic electroluminescence (FL) devices where the exciton recombination zone is restricted due to the asymmetry of electron and the hole mobilities.
Original languageEnglish (US)
JournalApplied Physics Letters
Volume71
Issue number6
DOIs
StatePublished - Aug 1 1997
Externally publishedYes

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