Low threshold edge emitting polymer distributed feedback laser based on a square lattice

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Low threshold edge emitting polymer distributed feedback laser based on a square lattice

Please use this identifier to cite or link to this item: http://hdl.handle.net/10036/33313

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Title: Low threshold edge emitting polymer distributed feedback laser based on a square lattice
Author: Vasdekis, A. E.
Turnbull, G. A.
Samuel, I. D. W.
Andrew, P.
Barnes, William L.
Citation: 86 (16), article 161102
Publisher: American Institute of Physics
Journal: Applied Physics Letters
Date Issued: 2005
URI: http://hdl.handle.net/10036/33313
DOI: 10.1063/1.1898430
Links: http://dx.doi.org/10.1063/1.1898430 http://link.aip.org/link/?APPLAB/86/161102/1
Abstract: We report the demonstration of a low-threshold, edge-emitting polymer distributed feedback laser based on a square lattice. The lattice constant was 268 nm, which corresponds to a lattice line spacing in the ΓM symmetry direction of the Brillouin zone of 189 nm. The latter was employed to provide feedback at 630 nm via a first order diffraction process. The device operated on two longitudinal modes, which were situated on the band-edge near the M symmetry point. The two modes had thresholds of 0.66 nJ and 1.2 nJ—significantly lower than comparable surface-emitting DFB lasers. Angle dependent photoluminescence experiments were performed to investigate the effect of the square lattice on the laser operation and the origin of the low threshold.
Type: Article
Description: Copyright © 2005 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Applied Physics Letters 86 (2005) and may be found at http://link.aip.org/link/?APPLAB/86/161102/1
Keywords: distributed feedback laserssemiconductor laserslaser modesorganic semiconductorsoptical polymerspolymer filmssemiconductor thin filmslattice constantsBrillouin zonesphotoluminescence
ISSN: 0003-6951


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