Broadly tunable deep blue laser based on a star-shaped oligofluorene truxene

Wang, Y., Tsiminis, G., Yang, Y., Ruseckas, A., Kanibolotsky, A. L., Perepichka, I. F., Skabara, P. J. , Turnbull, G. A. and Samuel, I. D.W. (2010) Broadly tunable deep blue laser based on a star-shaped oligofluorene truxene. Synthetic Metals, 160(13-14), pp. 1397-1400. (doi: 10.1016/j.synthmet.2010.04.016)

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Abstract

We report amplified spontaneous emission (ASE) and optically pumped deep-blue-emitting distributed feedback (DFB) lasers based on a star-shaped oligofluorene truxene molecule. A low ASE threshold of 2.1 kW/cm2 at 439 nm was achieved. The material exhibits a high net gain of 38 cm−1 and also low optical loss coefficient of 3.5 cm−1. Second-order DFB lasers show tuning of the emission wavelength from 422 to 473 nm, and a minimum threshold density of 515 W/cm2. This is the broadest tuning range (51 nm) reported for organic deep-blue/blue lasing materials.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Skabara, Professor Peter and Kanibolotskyy, Mr Oleksandr
Authors: Wang, Y., Tsiminis, G., Yang, Y., Ruseckas, A., Kanibolotsky, A. L., Perepichka, I. F., Skabara, P. J., Turnbull, G. A., and Samuel, I. D.W.
College/School:College of Science and Engineering > School of Chemistry
Journal Name:Synthetic Metals
Publisher:Elsevier
ISSN:0379-6779
ISSN (Online):1879-3290
Published Online:20 May 2010

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