The authors report on a monolithic vertical microcavity blue laser with a carbazole/fluorenyl derivative copolymer active film. The laser is realized by electron-beam deposition of the two dielectric mirrors on the bottom and on the top of the polymeric active layer. The devices exhibit a threshold fluence as low as 1.2 mu J/cm(2), with a divergence of the emission beam of 2.8 degrees. The measured lasing threshold and operational lifetimes (> 1.5x10(4) pulses at an excitation density 500 times larger than threshold) are among the best so far reported for blue-emitting polymer lasers, thus making these devices promising candidates for future electrical excitation. (c) 2006 American Institute of Physics.

Low-threshold blue-emitting monolithic polymer vertical cavity surface-emitting lasers

PISIGNANO, DARIO
2006

Abstract

The authors report on a monolithic vertical microcavity blue laser with a carbazole/fluorenyl derivative copolymer active film. The laser is realized by electron-beam deposition of the two dielectric mirrors on the bottom and on the top of the polymeric active layer. The devices exhibit a threshold fluence as low as 1.2 mu J/cm(2), with a divergence of the emission beam of 2.8 degrees. The measured lasing threshold and operational lifetimes (> 1.5x10(4) pulses at an excitation density 500 times larger than threshold) are among the best so far reported for blue-emitting polymer lasers, thus making these devices promising candidates for future electrical excitation. (c) 2006 American Institute of Physics.
Pisignano, Dario
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11568/886120
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