Emission characteristics and photonic band structure of microstructured polymer lasers

We present an experimental study of the emission properties and photonic band structure of a surface-emitting distributed feedback laser based on the conjugated polymer poly(2-methoxy-5-(2′-ethylhexyloxy)-1,4-phenylene vinylene). Measurements of the photonic band dispersion are compared with the spa...

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Bibliographic Details
Published in:Synthetic metals 2002-03, Vol.127 (1), p.45-48
Main Authors: Turnbull, G.A., Andrew, P., Jory, M.J., Barnes, W.L., Samuel, I.D.W.
Format: Article
Language:English
Subjects:
Application fields
Applied sciences
Conjugated polymer
Distributed feedback
Doped-insulator lasers and other solid state lasers
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Laser
Lasers
Optical materials
Optics
Photonic band structure
Photonic bandgap materials
Physics
Polymer industry, paints, wood
Technology of polymers
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Summary:We present an experimental study of the emission properties and photonic band structure of a surface-emitting distributed feedback laser based on the conjugated polymer poly(2-methoxy-5-(2′-ethylhexyloxy)-1,4-phenylene vinylene). Measurements of the photonic band dispersion are compared with the spatial and spectral properties of the laser emission to understand how the substrate microstructure controls stimulated emission. The laser structure exhibits a 1D photonic bandgap around 610 nm, with lasing occurring at one of the two associated band edges. The band edge selection mechanism is found to be different in the level of output coupling of the modes associated with the two band edges. The divergence of the laser beam is shown to be related to the dispersion of the photonic modes near to the band edges.
ISSN:0379-6779
1879-3290
DOI:10.1016/S0379-6779(01)00587-2