Journal
ADVANCED OPTICAL MATERIALS
Volume 5, Issue 10, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adom.201700057
Keywords
dye lasers; fluorescent and luminescent materials; laser materials; organic materials; polymer active devices
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Funding
- Swedish Research Council [621-2012-4421]
- Knut and Alice Wallenberg foundation through Wallenberg Wood Science Center at KTH Royal Institute of Technology
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The report on a study of laser emission from a conceptually new organic material based on transparent wood (TW) with embedded dye Rhodamine 6G molecules is presented in this paper. The lasing performance is compared to a reference organic material containing dye in a poly-methyl-methacrylate matrix. From experimental results, one can conclude that the optical feedback in dye-TW material is realized within cellulose fibers, which play the role of tiny optical resonators. Therefore, the output emission is a collective contribution of individual resonators. Due to this fact, as well as low Q-factor of the resonators/fibers and their length variation, the spectral line of laser emission is broadened up to several nanometers.
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