Organic mixed-order photonic crystal lasers with ultrasmall footprint

The lasing properties of an optimized two-dimensional photonic crystal structure with an organic gain material are investigated. The feedback structure which is fabricated in a thin film of Ta 2 O 5 increases both the index contrast from the gain material as well as the optical confinement. By combi...

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Bibliographic Details
Published in:Applied physics letters 2007-10, Vol.91 (17), p.171108-171108-3
Main Authors: Baumann, Kristian, Stöferle, Thilo, Moll, Nikolaj, Mahrt, Rainer F., Wahlbrink, Thorsten, Bolten, Jens, Mollenhauer, Thomas, Moormann, Christian, Scherf, Ulli
Format: Article
Language:English
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Summary:The lasing properties of an optimized two-dimensional photonic crystal structure with an organic gain material are investigated. The feedback structure which is fabricated in a thin film of Ta 2 O 5 increases both the index contrast from the gain material as well as the optical confinement. By combining first-order and second-order photonic crystal structures, losses occuring at the edge of the second order structure are dramatically reduced leading to a lower laser threshold and/or to a much smaller footprint of the laser.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.2801706