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Practical Broad-Band Tuning of Dye Lasers by Solvent Shifting

Grenci, Susan M. and Bird, George R. and Keelan, Brian W. and Zewail, Ahmed H. (1986) Practical Broad-Band Tuning of Dye Lasers by Solvent Shifting. Laser Chemistry, 6 (6). pp. 361-371. ISSN 0278-6273.

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We have operated a dye laser over a broad wavelength range (593.8-667.0nm) by shifting the dye emission profile with incremental changes of solvent composition. This was accomplished with the laser operating continuously, and only minor adjustment of the laser optics was required. Solvent tuning was facilitated by the critical dependence of the optimum laser wavelength on concentration of the second solvent. Using the known solvent-sensitive laser dye 9-diethylaminobenzo[a]phenoxaz-5-one (DBP), 87% of the tuning range from pure xylenes to pure methanol was covered by cumulative addition of 24 vol. % methanol to the starting xylenes solution. The optimum dye concentration was found to be independent of solvent composition, so that maximum laser power could be maintained by mixing equimolar dye solutions in the two solvents. These results establish the practicality of solvent-tuning as a method of conducting laser experiments over a broad wavelength range.

Item Type:Article
Additional Information:Released under a “Creative Commons Attribution License,” enabling the unrestricted use, distribution, and reproduction of an article in any medium, provided that the original work is properly cited. (Received July 26, 1985) We thank Larry W. Peng for experimental assistance. Financial support for this work was provided by the President’s Fund of the California Institute of Technology, and by a National Science Foundation Grant to Rutgers University (CHE-791651). Work by S.M.G. described herein completed at Rutgers University. [G.R.B. was a] Visiting Professor at California Institute of Technology. [A.H.Z. was a] Camille and Henry Dreyfus Teacher-Scholar. Arthur Amos Noyes Laboratory of Chemical Physics, Contribution #7258.
Subject Keywords:Dye lasers; Solvent shifts of dye emission.
Record Number:CaltechAUTHORS:GRElc86
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Official Citation:Susan M. Grenci, George R. Bird, Brian W. Keelan, and Ahmed H. Zewail, “Practical Broad-Band Tuning of Dye Lasers by Solvent Shifting,” Laser Chemistry, vol. 6, no. 6, pp. 361-371, 1986. doi:10.1155/LC.6.361
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:9288
Deposited By: Archive Administrator
Deposited On:09 Dec 2007
Last Modified:26 Dec 2012 09:47

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