Wang, Yue and Tsiminis, Georgios and Yang, Ying and Ruseckas, Arvydas and Kanibolotsky, Alexander L. and Perepichka, Igor F. and Skabara, Peter and Turnbull, Graham A. and Samuel, Ifor D. W. (2010) Broadly tunable deep blue laser based on a star-shaped oligofluorene truxene. Synthetic Metals, 160 (13-14). pp. 1397-1400. ISSN 0379-6779
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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/cm(2) 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/cm(2). This is the broadest tuning range (51 nm) reported for organic deep-blue/blue lasing materials. (C) 2010 Elsevier B.V. All rights reserved.
| Item type: | Article |
|---|---|
| ID code: | 28458 |
| Keywords: | lasers, oligofluorene truxene, amplified spontaneous emission, Electrical engineering. Electronics Nuclear engineering, Chemistry, Physical and theoretical chemistry |
| Subjects: | Technology > Electrical engineering. Electronics Nuclear engineering Science > Chemistry Science > Chemistry > Physical and theoretical chemistry |
| Department: | Faculty of Engineering > Electronic and Electrical Engineering Faculty of Science > Pure and Applied Chemistry |
| Related URLs: | |
| Depositing user: | Mrs Roslyn MacDonald |
| Date Deposited: | 13 May 2011 13:22 |
| Last modified: | 27 Apr 2012 11:46 |
| URI: | http://strathprints.strath.ac.uk/id/eprint/28458 |
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