Abstract
THE fluorescence spectrum and laser properties of 4-methylumbelliferone (4MU) (I) have been reported by Shank, Dienes, Trozzolo and Myer1. We have made a detailed investigation to identify the spectroscopic species and have come to a different conclusion about the assignment of species.
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References
Shank, C. V., Dienes, A., Trozzolo, A. M., and Myer, J., Appl. Phys. Lett., 16, 405 (1970).
Hammond, P. R., and Hughes, R. S., Nature Physical Science, 231, 59 (1971).
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NAKASHIMA, M., SOUSA, J. & CLAPP, R. Spectroscopic Species of 4-Methylumbelliferone in Water and in Ethanol. Nature Physical Science 235, 16–18 (1972). https://doi.org/10.1038/physci235016a0
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DOI: https://doi.org/10.1038/physci235016a0
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