Holzer, W. and Penzkofer, Alfons and Schmitt, T. and Hartmann, A. and Bader, C. and Tillmann, H. and Raabe, D. and Stockmann, R. and Hoerhold, H.-H. (2001) Amplified spontaneous emission in neat films of arylene-vinylene polymers. OPTICAL AND QUANTUM ELECTRONICS, 33 (2). pp. 121-150. ISSN 0306-8919
Full text not available from this repository. (Request a copy)Abstract
Amplified spontaneous emission (travelling-wave lasing) was achieved for a set of 18 poly(2-methoxy-5-(2'-ethyl-hexyloxy)-1,4-phenylene-vinylene) (MEH-PPV) related arylene-vinylene copolymers, a part of which substituted with additional phenyl groups at the vinyl double bond. Wave-guiding neat thin films on glass substrates were used. The samples were transversally pumped with single second harmonic pulses of a mode-locked ruby laser (wavelength 347.15 nm). Travelling-wave emission occurred in the wavelength region between 485 and 650 nm. Repeat unit based absorption cross-section spectra, normalized fluorescence quantum distributions, and amplified spontaneous emission spectra are presented. Ground-state absorption cross-sections at the wavelengths of peak amplified emission are extracted from effective gain length measurements. Effective stimulated emission cross-sections are derived from pump pulse energy densities necessary for optical narrowing.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | OPTICAL-CONSTANTS MEASUREMENT; EFFECTIVE STIMULATED-EMISSION; CROSS-SECTION SPECTRA; STATE LASER MATERIALS; CONJUGATED-POLYMER; SEMICONDUCTING POLYMER; LUMINESCENT POLYMERS; CONDENSATION POLYMERIZATION; FLUORESCENCE BEHAVIOR; CONDUCTING POLYMERS; amplified spontaneous emission; arylene-vinylene polymers; effective stimulated emission cross-section; luminescent polymers; phenylene-vinylene polymers; travelling-wave lasing |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Alumni or Retired Professors > Group Alfons Penzkofer |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 15 Feb 2022 10:55 |
| Last Modified: | 15 Feb 2022 10:55 |
| URI: | https://pred.uni-regensburg.de/id/eprint/41792 |
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