Dyestuff laser
First Claim
1. Dyestuff laser comprising a reservoir with a laser dyestuff solution contained therein and a pumping light source connected thereto, which source is capable of exciting the dyestuff solution to emit, characterised in that the dyestuff solution contains, in a solvent which does not interfere with the emission, a dyestuff of the general formula ##STR7## wherein R6 and R7 represent hydrogen,R8 and R9 denote hydrogen or alkyl radicals with 1-2 C atoms andMe represents hydrogen, potassium, sodium, ammonium, monoalkylammonium, dialkylammonium or trialkylammonium ions, with alkyl denoting C1 -C4,in a concentration which emits laser beams, preferably of 10-2 to 10-5 mol/liter.
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Abstract
A dye laser employing a solution of: ##STR1## wherein R and R1 independently of one another represent hydrogen, alkyl, cycloalkyl or aralkyl or can form, with R2 or R3, or with R4 or R5, a partially hydrogenated 5-membered or 6-membered heterocyclic ring, R2 - R5 independently of one another represent hydrogen, alkyl, alkoxy or halogen or can form, with R or R1, a partially hydrogenated 5-membered or 6-membered heterocyclic ring,
Me represents hydrogen, a monovalent or divalent metal cation, or the ammonium, monoalkylammonium, dialkylammonium or trialkylammonium radical, and m and n denote a number between 1 and 4,
And wherein
The rings, A, B and C as well as the aliphatic or aromatic radicals present in the formula can also be substituted further,
In a concentration which emits laser beams, preferably of 10-2 to 10-5 mol litre.
24 Citations
1 Claim
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1. Dyestuff laser comprising a reservoir with a laser dyestuff solution contained therein and a pumping light source connected thereto, which source is capable of exciting the dyestuff solution to emit, characterised in that the dyestuff solution contains, in a solvent which does not interfere with the emission, a dyestuff of the general formula ##STR7## wherein R6 and R7 represent hydrogen,
R8 and R9 denote hydrogen or alkyl radicals with 1-2 C atoms and Me represents hydrogen, potassium, sodium, ammonium, monoalkylammonium, dialkylammonium or trialkylammonium ions, with alkyl denoting C1 -C4, in a concentration which emits laser beams, preferably of 10-2 to 10-5 mol/liter.
Specification
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- Resources
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Current AssigneeBayer AG
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Original AssigneeBayer AG
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InventorsRaue, Roderich, Friedrich, Adolf, Hartig, Wolfgang, Walther, Herbert
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Primary Examiner(s)Larkins, William D.
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Application NumberUS05/702,080Time in Patent Office739 DaysField of Search331/94.5 L, 252/301.17, 252/301.18US Class Current372/53CPC Class CodesH01S 3/20 LiquidsH01S 3/213 including an organic dye
