US3833863A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Styryl and arylbutadienyl dye lasers
Assignee: Eastman Kodak Co
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Filing: 1971-12-27
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Granted: 1974-09-03
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Expires: 1991-12-27
Abstract
Abstract Styryl and arylbutadienyl dyes are useful as laser dyes. These dyes are used in solution with a non-interfering solvent to form lasing media useful in dye lasers. Such lasers generally include a reservoir for containing the laser dye solution and a pumping energy source operably associated therewith for producing stimulated emission of the laser dye solution.
Inventors
- 👤 F Webster
- 👤 Colgin W Mc
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:06
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/14; H01S3/20; H01S3/213
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
24 words
The method as described in claim 1 wherein said dye is present in a concentration of about 10 2 to about 10 4 molar.
Claim 2
Dependent Claim
50 words
The method as described in claim 1 wherein said dye is selected from the group consisting of a 2-p-dimethylaminostyryl-3,4-trimethylenenaphtho(2,3-d)thiazolium salt, a 2-p-dimethylaminostyryl-3-ethylnaphtho(2,3 d)thiazolium salt, a 3-ethyl-5-phenyl-2-(2-(2,3,6,7-tetrahydro-1H,5H-pyrido(3,2,1-ij)quinol-9 -yl)vinyl)benzoxazolium salt, a 3-ethyl-4-methyl-2-(2-(2,3,6,7-tetrahydro-1H,5H-pyrido(3,2,1-ij)quinol-9 -yl)vinyl)thiazolium salt, a 2-(4-(p-diethylaminophenyl)-1,3-butadienyl)-3-ethylbenzothiazolium salt, a 2-p-dimethylaminostyryl-1-ethylnaphtho(2,3-d)thiazolium salt, a 2-(4-p-dimethylamino-1,3-butadienyl)-3-phenylbenzothiazolium salt, a 3-benzyl-2-p-dimethylaminostyrylbenzothiazolinium salt, and a 2-p-diethylaminostyryl-3- Beta -ethoxyethylbenzothiazolium salt.
Claim 3
Dependent Claim
41 words
The method as described in claim 1 wherein said dye is selected from the group consisting of a 3-(p-dimethylaminocinnamylidene)-4-ethyl-2,3-dihydro-1H -cyclopenta(b)quinolinium salt, a 3-(p-dimethylaminocinnamylidene)-2,3-dihydro-4-methyl-1H -cyclopenta(b)quinolinium salt, a 2-(4-p-dimethylaminophenyl-1,3-butadienyl)-1-ethylpyridinium salt, a 2-(4-p-dimethylaminophenyl-1,3-butadienyl)-3,3-dimethyl-1-phenylindolinium salt, 1,2-p-dimethylaminostyryl-1,3-diethylnaphth(2,3)imidazolium salt, a 2-(4-p-dimethylaminophenyl-1,3-butadienyl)-1,3-diethyl-1H-imidazolo(4,5 -b)quinolinium salt, and a 4-p-diethylaminostyryl-1-ethylpyridinium salt.
Claim 4
Dependent Claim
13 words
The method as described in claim 1 wherein said dye is 2-(4-(p-diethylaminophenyl)-1,3-butadienyl)-3-ethyl-4-phenylthiazolium perchlorate.
Claim 5
Independent Claim
81 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 900 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 between about 10 2 to about 10 4 molar concentration of a lasing dye in a non-interfering solvent, said dye having the formula as follows:
Claim 6
Independent Claim
82 words
A method of producing a coherent laser emission in the operation of a dye laser in the wavelength range of from about 500 to about 900 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 between about 10 2 to about 10 4 molar concentration of a lasing dye in a non-interfering solvent, said dye having the formula as follows:
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-02 | 1978-03-04 | 1978-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-02 | 1982-03-04 | 1982-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-02 | 1986-03-04 | 1986-09-03 | $7700.00 | Window Closed / Lapsed |