Compositions – Organic luminescent material containing compositions – Scintillating or lasing compositions
Patent
1990-02-26
1992-02-11
Medley, Margaret B.
Compositions
Organic luminescent material containing compositions
Scintillating or lasing compositions
25230135, 372 54, 372 53, C09K 1107, H01S 3213
Patent
active
050873881
ABSTRACT:
A method for releasing trialkylamines into the dye circulation stream of a dye laser and a filter cartridge containing a resin bound anion stabilizing agent for insertion into the dye circulation stream of a dye laser improves the performance thereof, especially with respect to excimer and flashlamp pumped coumarin and carbostyryl dye lasers. The resin bears quaternary ammonium groups, and borohydride, bromide, hudroxide or chloride may be used as the counter ion. A resin bound borohydride stabilizing agent is capable of releasing trialkylamine into the dye circulation stream and reducing the carbonyl functional groups of polyarbonyl material in the stream to less light absorbing alcohol functional groups. A resin bound chloride stabilizing agent is capable of releasing trialkylamine into the dye circulation stream as a quencher and radical scavenger.
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patent: 4968725 (1990-11-01), Mukai
patent: 4977571 (1990-12-01), Furumoto
Winters et al., "Photochemical Products in Coumarin Laser Dyes", Applied Physics Letters, 12/15/74, pp. 723-724.
Mostovnikov et al., "Recovery of Lasing Properties of Dye Solutions After their Photolysis", Soviet Journal of Quantum Electronics, 9/76. pp. 1126-1128.
Kunjappu et al., "Enhancement of Lasing . . . ," Photochem. and Photobiol, A:Chemistry, 41 (1987), pp. 121-125.
Von Trebra et al., "Photochemistry of Coumarin . . . ," J. of Photochemistry, 35 (1986), pp. 33-46.
Koch Tad H.
Mahoney Robert P.
Medley Margaret B.
Research Corporation Technologies Inc.
Steinberg Thomas
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