Microwave-assisted preparation of uniform pure and dye-loaded AlPO4-5 crystals with different morphologies for use as microlaser systems
- 30 May 2001
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of Materials Chemistry
- Vol. 11 (7) , 1823-1827
- https://doi.org/10.1039/b100694k
Abstract
The study of the influence of the crystal morphology of laser dye-loaded AlPO4-5 molecular sieve on the previously reported laser properties, i.e., laser threshold power density, modes of laser emission and lightfastness, requires synthesis procedures resulting in single crystals of varied length-per-width ratios. The suppression of undesired side-phases (AlPO4-8, VPI-5), as well as the temperature–time field, for the production of pure Rhodamine BE50-loaded crystals with desired uniform morphology by the microwave-heated crystallization method are evaluated and discussed. Uniform plate-like crystals with a thickness of less than 4 µm, for which favorable laser properties can be expected, are obtained only in a small temperature window 150 ± 5 °C with reaction times of about 10 minutes.Keywords
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