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The Strathprints institutional repository is a digital archive of University of Strathclyde research outputs. Strathprints provides access to thousands of Open Access research papers by University of Strathclyde researchers, including those from the School of Psychological Sciences & Health - but also papers by researchers based within the Faculties of Science, Engineering, Humanities & Social Sciences, and from the Strathclyde Business School.

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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.