Lasing compositions and methods for using the same

Details Lasing compositions and methods for using the same Lasing compositions and methods for using the same

1988-09-29

1990-04-10

Scott, Jr., Leon

Coherent light generators

Particular active media

Liquid

25230117, H01S 320

Patent

active

049167111

ABSTRACT:
A new group of fluorescent organic materials having a variety of uses are described. They are especially useful as dye compounds in dye laser systems, and as photochemical agents in the treatment of diseased tissues using photodynamic therapy techniques. The materials involve a tri-cyclic compound having the following structure: ##STR1## In this structure, R.sub.1 -R.sub.21 represent a variety of organic and inorganic groups.

REFERENCES:
patent: 4774339 (1988-09-01), Haugland et al.
patent: 4799230 (1989-01-01), Pavalopoulos et al.
Wories, H. J., "A Novel Water-Soluble Fluorescent Probe: Synthesis, Luminescence, and Biological Properties of the Sodium Salt of the 3,3', 5,5'-Tetramethyl-2,2'-Pyrromethene-1,1'-BF.sub.2 Complex", Recueil Des. Travaux Chemiques des Pays-Bas, 104/11, Nov. 1985, pp. 288-291.

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