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Applied Physics Letters / Volume 96 / Issue 26 / ORGANIC ELECTRONICS AND PHOTONICS
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Appl. Phys. Lett. 96, 263304 (2010); http://dx.doi.org/10.1063/1.3459967 (3 pages)

Surface-emitting dye-doped polymer laser coupled with stimulated resonant Raman scattering

Hisao Yanagi1, Hidetaka Miyamoto1, Atsushi Ishizumi1, Satoshi Tomita1, Kenichi Yamashita2, and Kunishige Oe2

1Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama-cho, Ikoma, Nara 630-0192, Japan
2Department of Electronics, Graduate School of Science and Technology, Kyoto Institute of Technology, Matsugasaki Goshokaidocho, Sakyo-ku, Kyoto 606-8585, Japan

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(Received 25 March 2010; accepted 13 June 2010; published online 1 July 2010)

Surface-emitting polymer laser was fabricated with 1,4-bis[2-[4-[N,N-di(p-totyl)amino]phenyl]vinyl]benzene-doped poly(vinyl-pyrrolidone) thin films sandwiched between two distributed Bragg reflector (DBR) mirrors. Under pulsed optical pumping, Fabry–Perot (FP) type resonation resulted in multi-mode laser oscillations depending upon the active film thickness. With increasing excitation wavelengths, an emission peak based on stimulated resonant Raman scattering (SRRS) was superimposed on the multimode band region. When the SRRS peak just overlapped with one of the FP modes, the emission intensity was enhanced and the line width was considerably narrowed. Such SRRS-coupled FP oscillations can be applied to realize a tunable single-mode surface-emitting polymer laser.

© 2010 American Institute of Physics

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KEYWORDS and PACS

Keywords

conducting polymers, distributed Bragg reflectors, Fabry-Perot resonators, laser cavity resonators, laser modes, optical pumping, organic semiconductors, polymer films, stimulated Raman scattering, surface emitting lasers

PACS

  • 42.55.Px

    Semiconductor lasers; laser diodes

  • 42.60.Da

    Resonators, cavities, amplifiers, arrays, and rings

  • 78.66.Qn

    Polymers; organic compounds

  • 78.40.Me

    Organic compounds and polymers

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3459967

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

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Figures (click on thumbnails to view enlargements)

FIG.1
Molecular structures of DADSB and PVP (a), and schematic of surface-emitting FP structure with DADSB/PVP active film sandwiched between DBR mirrors (b).

FIG.1 Download High Resolution Image (.zip file) | Export Figure to PowerPoint

FIG.2
Cross-sectional scanning electron micrograph of the DBR mirror (a) and its optical transmission spectrum (solid line) together with absorption (dotted-dashed line) and fluorescence (dashed line) spectra (b).

FIG.2 Download High Resolution Image (.zip file) | Export Figure to PowerPoint

FIG.3
Optically pumped PL spectra of the surface-emitting FP structures with DADSB/PPV films having different thicknesses. λex is 440.6 (a), 441.0 (b), and 454.2 nm (c).

FIG.3 Download High Resolution Image (.zip file) | Export Figure to PowerPoint

FIG.4
PL spectral changes of optically pumped surface-emitting FP structure as a function of λex.

FIG.4 Download High Resolution Image (.zip file) | Export Figure to PowerPoint



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