NDLI: Low threshold all-organic composite laser

Content Provider	IEEE Xplore Digital Library
Author	Guilhabert, B. Laurand, N. Mackintosh, A.R. Chen, Y. Herrnsdorf, J. Kanibolotsky, A. Skabarra, P.J. Dawson, M.D.
Copyright Year	2011
Description	Author affiliation: Institute of Photonics, University of Strathclyde, 106 Rottenrow, Glasgow G4 0NW, UK (Guilhabert, B.; Laurand, N.; Chen, Y.; Herrnsdorf, J.; Dawson, M.D.) \|\| Pure and Applied Chemistry Department, University of Strathclyde, 295 Cathedral St, Glasgow G1 1XL, UK (Mackintosh, A.R.; Kanibolotsky, A.; Skabarra, P.J.)
Abstract	Light-emitting polymers (LEPs) and related organic materials are attractive for many applications including optoelectronics and photonics [1]. They exhibit high photoluminescence quantum yields and can be tailored to emit at wavelengths across the whole visible spectrum. Furthermore, thanks to their ‘soft matter’ nature they offer great processing flexibility and should enable a wide range of novel devices and applications. Consequently, research into photonic components based on LEPs is being keenly pursued. However, organic materials typically suffer from photo-oxidation which can result in an alteration of the conjugation length at the molecular scale and ultimately destroys their light-emitting properties. Encapsulation of the LEPs while maintaining their processability and attractive physical properties is therefore essential to fully leverage this technology. The idea of composites, where a light-emitting material is blended in a protective host matrix, has often been the chosen strategy and many distributed feedback (DFB) lasers based on this approach were reported [2]. However, their laser oscillation threshold often exceeds the thresholds of their “neat” counterparts by more than 10 to 100-fold. In this work, we report a composite based on the incorporation of LEP into a novel polymer matrix which shows low amplified spontaneous emission (ASE) threshold. A mechanically-flexible, surface-emitting DFB laser with a threshold as low as those typically shown by organic DFB lasers made from neat materials is also demonstrated.
Starting Page	1
Ending Page	1
File Size	412696
Page Count	1
File Format	PDF
ISBN	9781457705335
e-ISBN	9781457705328
DOI	10.1109/CLEOE.2011.5942733
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-05-22
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Silicon compounds Surface emitting lasers Laser feedback Distributed feedback devices Chemical lasers Laser beams Plastics
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
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