The emission spectra of optically pumped organic semiconductor lasers are compared with calculated dispersion relations of the
dielectric feedback systems of the lasers. The lasers are fabricated by spin coating a thin film of a methyl-substituted ladder-type poly-(para-phenylene) onto a nano-patterned circular-grating distributed Bragg reflector. The lasing is located spectrally at the band edge of the Bragg dip, and can be tuned by varying the period of the grating.
By: N. Moll, C. Bauer, B. Schnabel, E.B. Kley, U. Scherf, and R.F. Mahrt
Published in: RZ3390 in 2002
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