US3864644A
Expired / Lapsed
US
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Dye lasers including rigidized carbocyanine dyes
Assignee: Eastman Kodak Co
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Filing: 1972-10-10
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Granted: 1975-02-04
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Expires: 1992-10-10
Abstract
Abstract Rigidized carbocyanine dyes including at least two nitrogencontaiing heterocyclic nuclei with a nitrogen atom of each nucleus joined by a 5 carbon polyene chain, each heterocyclic nucleus also having the non-metallic atoms to complete, in combination with the two nitrogen atoms and the carbon atoms of the intervening polyene chain, a nucleus which is either 3,4,5a, 6,7,8-hexahydro-4aH-pyrano(3,2-c;-5,6-c'' dipyridine or an analog wherein the member in the 5-position is alternatively one such as a sulfur atom, a nitrogen atom, a selenium atom, etc., are useful as laser dyes in dye lasers. The dye laser generally includes a reservoir means for containing a laser dye solution and a pumping energy source capable of producing stimulated emission of the laser dye solution which itself includes a lasing concentration of the laser dye in a non-interfering solvent.
Inventors
- 👤 Lewis Lauren Lincoln
- 👤 Donald Warren Heseltine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:23
CPC Classifications
C; C09; C09B; C09B57/00; H; H01; H01S; H01S3/00; H01S3/14; H01S3/20; H01S3/213
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
78 words
A METHOD OF PRODUCING COHERENT LASER EMISSION IN THE OPERATION OF A DYE LASER IN THE WAVELENGTH RANGE OF FROM ABOUT 500 TO ABOUT 800 NM COMPRISING THE STEPS OF OPTICALLY PUMPING A DYE SOLUTION TO PRODUCE A POPULATION INVERSION IN SAID SOLUTION AND STIMULATING THE EMISSION OF A BEAM OF RADIATION THEREFROM, SAID SOLUTION CONTAINING ABOUT 10**-2 TO ABOUT 10**-4 MOLAR CONCENTRATION OF A LASING DYE IN A NON-INTERFERING SOLVENT, SAID DYE HAVING A FORMULA AS FOLLOWS:
Claim 2
Independent Claim
78 words
A METHOD OF PRODUCING COHERENT LASER EMISSION IN THE OPERATION OF A DYE LASER IN THE WAVELENGTH RANGE OF FROM ABOUT 500 TO ABOUT 800 NM COMPRISING THE STEPS OF OPTICALLY PUMPING A DYE SOLUTION TO PRODUCE A POPULATION INVERSION IN SAID SOLUTION AND STIMULATING THE EMISSION OF A BEAM OF RADIATION THEREFROM, SAID SOLUTION CONTAINING ABOUT 10**-2 TO ABOUT 10**-4 MOLAR CONCENTRATION OF A LASING DYE IN A NON-INTERFERING SOLVENT, SAID DYE HAVING A FORMULA AS FOLLOWS:
Claim 3
Independent Claim
80 words
A method of producing coherent laser emission in the operation of a dye laser in the wavelength range of from about 500 to about 800 nm comprising the steps of optically pumping a dye solution to produce a population inversion in said solution and stimulating the emission of a beam of radiation therefrom, said solution containing about 10 2 to about 10 4 molar concentration of a lasing dye in a non-interfering solvent, said dye having a formula as follows:
Claim 4
Independent Claim
80 words
A method of producing coherent laser emission in the operation of a dye laser in the wavelength range of from about 500 to about 800 nm comprising the steps of optically pumping a dye solution to produce a population inversion in said solution and stimulating the emission of a beam of radiation therefrom, said solution containing about 10 2 to about 10 4 molar concentration of a lasing dye in a non-interfering solvent, said dye having a formula as follows:
Claim 5
Independent Claim
80 words
A method of producing coherent laser emission in the operation of a dye laser in the wavelength range of from about 500 to about 800 nm comprising the steps of optically pumping a dye solution to produce a population inversion in said solution and stimulating the emission of a beam of radiation therefrom, said solution containing about 10 2 to about 10 4 molar concentration of a lasing dye in a non-interfering solvent, said dye having a formula as follows:
Claim 6
Independent Claim
80 words
A method of producing coherent laser emission in the operation of a dye laser in the wavelength range of from about 500 to about 800 nm comprising the steps of optically pumping a dye solution to produce a population inversion in said solution and stimulating the emission of a beam of radiation therefrom, said solution containing about 10 2 to about 10 4 molar concentration of a lasing dye in a non-interfering solvent, said dye having a formula as follows:
Claim 7
Independent Claim
80 words
A method of producing coherent laser emission in the operation of a dye laser in the wavelength range of from about 500 to about 800 nm comprising the steps of optically pumping a dye solution to produce a population inversion in said solution and stimulating the emission of a beam of radiation therefrom, said solution containing about 10 2 to about 10 4 molar concentration of a lasing dye in a non-interfering solvent, said dye having a formula as follows:
Claim 8
Independent Claim
80 words
A method of producing coherent laser emission in the operation of a dye laser in the wavelength range of from about 500 to about 800 nm comprising the steps of optically pumping a dye solution to produce a population inversion in said solution and stimulating the emission of a beam of radiation therefrom, said solution containing about 10 2 to about 10 4 molar concentration of a lasing dye in a non-interfering solvent, said dye having a formula as follows:
Claim 9
Independent Claim
80 words
A method of producing coherent laser emission in the operation of a dye laser in the wavelength range of from about 500 to about 800 nm comprising the steps of optically pumping a dye solution to produce a population inversion in said solution and stimulating the emission of a beam of radiation therefrom, said solution containing about 10 2 to about 10 4 molar concentration of a lasing dye in a non-interfering solvent, said dye having a formula as follows:
Claim 10
Independent Claim
80 words
A method of producing coherent laser emission in the operation of a dye laser in the wavelength range of from about 500 to about 800 nm comprising the steps of optically pumping a dye solution to produce a population inversion in said solution and stimulating the emission of a beam of radiation therefrom, said solution containing about 10 2 to about 10 4 molar concentration of a lasing dye in a non-interfering solvent, said dye having a formula as follows:
Claim 11
Independent Claim
80 words
A method of producing coherent laser emission in operation of a dye laser in the wavelength range of from about 500 to about 800 nm comprising the steps of optically pumping a dye solution to produce a population inversion in said solution and stimulating the emission of a beam of radiation therefrom, said solution containing about 10 2 to about 10 4 molar concentration of a lasing dye in a non-interfering solvent, said dye selected from the group consisting of:
Claim 12
Independent Claim
80 words
A method of producing coherent laser emission in operation of a dye laser in the wavelength range of from about 500 to about 800 nm comprising the steps of optically pumping a dye solution to produce a population inversion in said solution and stimulating the emission of a beam of radiation therefrom, said solution containing about 10 2 to about 10 4 molar concentration of a lasing dye in a non-interfering solvent, said dye selected from the group consisting of:
References Cited (Backward Citations)
US3541470A
Cited
US3521187A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-03 | 1978-08-05 | 1979-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-03 | 1982-08-05 | 1983-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-03 | 1986-08-05 | 1987-02-04 | $7700.00 | Window Closed / Lapsed |