Directional emission from asymmetric microlaser resonators of π-conjugated polymers

Polson, R. C.; Vardeny, Z. V.
September 2004
Applied Physics Letters;9/13/2004, Vol. 85 Issue 11, p1892
Academic Journal
A π-conjugated polymer film was fabricated into an asymmetric microlaser resonator having a quadrapole deformation with irregular boundaries and a Q factor of 600. At high excitation intensities above the threshold for lasing, we observed multimode laser emission spectra and directional emission at four different angles. Chaotic ray dynamics explains the observed emission pattern. © 2004 American Institute of Physics.


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