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The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of Open Access research papers by Strathclyde researchers, including by researchers from the Physical Activity for Health Group based within the School of Psychological Sciences & Health. Research here seeks to better understand how and why physical activity improves health, gain a better understanding of the amount, intensity, and type of physical activity needed for health benefits, and evaluate the effect of interventions to promote physical activity.

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Flexible blue-emitting encapsulated organic semiconductor DFB laser

Herrnsdorf, Johannes and Guilhabert, Benoit Jack Eloi and Chen, Y. and Kanibolotsky, Alexander and Mackintosh, Allan and Pethrick, Richard and Skabara, Peter and Gu, Erdan and Laurand, Nicolas and Dawson, Martin (2010) Flexible blue-emitting encapsulated organic semiconductor DFB laser. Optics Express, 18 (25). pp. 25535-25545. ISSN 1094-4087

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Abstract

Mechanically flexible distributed feedback (DFB) lasers are fabricated by a low-cost approach using soft-lithography from a holographic master grating. The gain material is a star-shaped oligofluorene providing laser emission from 425 to 442 nm with a soft pump threshold at 14.4 μJ/cm2 (2.7 kW/cm2). Encapsulation of the devices enables stable operation in ambient atmosphere at a 1/e degradation energy dosage of 53 J/cm2.