Two-photon pumped lasing of a poly(phenylenevinylene)-titania-silica (PPV-TiO(2)-SiO(2)) nano-composite comprised of PPV synthesized within the void spaces of a multilayer nanoparticle TiO(2) and SiO(2) 1D photonic crystal is reported for the first time. With this distributed feedback (DFB) device, we have discovered the surprising result that two photon lasing requires only a factor of 2 higher intensity than one photon lasing thereby allowing laser excitation densities far below those that cause material degradation. The lower excitation density makes possible laser operation in the high-repetition rate regime and the use of compact and cheap NIR pump sources. All this makes our device rather interesting for optical telecommunication applications.

Two-Photon Poly(phenylenevinylene) DFB Laser

SCOTOGNELLA, FRANCESCO;ZAVELANI ROSSI, MARGHERITA;LANZANI, GUGLIELMO
2011

Abstract

Two-photon pumped lasing of a poly(phenylenevinylene)-titania-silica (PPV-TiO(2)-SiO(2)) nano-composite comprised of PPV synthesized within the void spaces of a multilayer nanoparticle TiO(2) and SiO(2) 1D photonic crystal is reported for the first time. With this distributed feedback (DFB) device, we have discovered the surprising result that two photon lasing requires only a factor of 2 higher intensity than one photon lasing thereby allowing laser excitation densities far below those that cause material degradation. The lower excitation density makes possible laser operation in the high-repetition rate regime and the use of compact and cheap NIR pump sources. All this makes our device rather interesting for optical telecommunication applications.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11311/633248
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