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Proceedings Paper

Laser properties of luminescent conducting polymers in open resonators
Author(s): Nayer Eradat Oskouei; Werner Gellermann; Maxim N. Shkunov; Sergey V. Frolov; M. Osaki; Katsumi Yoshino; Z. Valy Vardeny
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Paper Abstract

We have investigated the lasing properties of several luminescent conducting polymers, i.e. DOO-PPV and the bi- substituted polyacetylenes PDPA-nBu, and PHxPA, dissolved in various polar and non-polar solvents. PPV polymers emit with high quantum efficiencies in broad emission bands cantered in the orange/red region of the spectrum, depending on the solvent, and the PDPA polymers emit in the blue/green region. Our tested laser resonators include polymer solutions excited with 100 ps pulses from a regeneratively amplified mode-locked Nd:YAG laser. We obtain pulsed, low-threshold laser operation with repetition rate of up to 1 kHz. Resulting mainly from recent reported originally in the literature. The dependencies of threshold pump energy and output versus input power characteristics on material parameters are investigated for a fixed optical gain length. The results are compared with the standard Rhodamine 590 organic dye system used in the same wavelength regions. We have observed that the well know phenomenon of 'concentration quenching' in dye molecules does not happen in polymers. Spectral narrowing in PDPA-nBu solution, emitting near 500 nm, is also obtained for the first time.

Paper Details

Date Published: 1 December 1997
PDF: 11 pages
Proc. SPIE 3148, Organic Light-Emitting Materials and Devices, (1 December 1997); doi: 10.1117/12.295544
Show Author Affiliations
Nayer Eradat Oskouei, Univ. of Utah (United States)
Werner Gellermann, Univ. of Utah (United States)
Maxim N. Shkunov, Univ. of Utah (United States)
Sergey V. Frolov, Univ. of Utah (United States)
M. Osaki, Osaka Univ. (Japan)
Katsumi Yoshino, Osaka Univ. (Japan)
Z. Valy Vardeny, Univ. of Utah (United States)

Published in SPIE Proceedings Vol. 3148:
Organic Light-Emitting Materials and Devices
Zakya H. Kafafi, Editor(s)

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