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 |
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Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Skabara, Professor Peter and Kanibolotskyy, Dr 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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