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15 September 2004 Lasing in a 2D photonic bandgap structure
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Organic two-dimensional photonic bandgap structures (2D PBG) have been fabricated by spin-coating a thin polymer film onto a nano-patterned SiO2 circular-grating surface-emitting distributed Bragg reflectors (CG-SE-DBR). When optically pumped and for certain grating parameters, these structures exhibit a peak inside the stop band that leads to lasing with a reduced threshold. An analytical model based on the transfer-matrix method has been developed to investigate the origin of this peak. The theoretical results are in excellent agreement with the experimental findings.
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Asma Jebali, Rainer F. Mahrt, Nikolaj Moll, Daniel Erni, Christian Bauer, Ernst B. Kley, Gian-Luca Bona, and Werner Baechtold "Lasing in a 2D photonic bandgap structure", Proc. SPIE 5450, Photonic Crystal Materials and Nanostructures, (15 September 2004);

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