Author/Authors :
Frolov، نويسنده , , S.V. and Ozaki، نويسنده , , M. and Gellermann، نويسنده , , W. and Shkunov، نويسنده , , M. and Vardeny، نويسنده , , Z.V. and Yoshino، نويسنده , , K.، نويسنده ,
Abstract :
We discuss different interpretations for the spectral narrowing of the emission in thin films of DOO-PPV. We argue that it is more likely due to excitonic cooperative emission(superradiance) rather than amplified spontaneous emission, or lasing.
Keywords :
Amplified spontaneous emission , Superfluorescence , Superradiance , solid state polymer lasers