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US5237582A
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Conductive polymer dye laser and diode and method of use
Assignee: University of California
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Filing: 1992-06-26
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Granted: 1993-08-17
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Expires: 2012-06-26
Abstract
Abstract A novel dye laser comprises a laser dye solution comprising a conductive polymer having the chemical formula ##STR1## wherein R comprises (C 1 -C 10 )alkyl, R' is the same or different from R and comprises alkyl, substituted alkyl, benzyl, or substituted benzyl, such as --(CH 2 ) n CH 3 or CH 2 C 6 H 4 (CH 2 ) n Y, wherein Y is O-alkyl, alkyl, alkenyl or alkynyl and n is greater than 1 and up to 200, and for structure IV R" is the same or different from R and comprises (C 1 -C 10 )alkyl, and x is greater than about 20, and a non-aqueous solvent; the solvent being substantially unable to chemically react with the polymer and to absorb and emit light at a wavelength similar to the conductive polymer, and a pumping energy source operably coupled therewith and capable of producing stimulated emmission of the dye solution. A laser device, comprising a solid body of the conductive polymer described above, and a host polymer, the host polymer being unable to chemically react with the polymer and unable to absorb and emit light at a wavelength similar to the conductive polymer, means for pumping the body to generate light therein, and means for creating distributed feedback of the light to achieve a substantially coherent beam of light which is emitted from the body.
Inventors
- 👤 Daniel Moses
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:23
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/14; H01S3/20; H01S3/213; C; C08; C08G; C08G61/00; C08G61/02
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
164 words
A dye laser, comprising: a laser dye solution disposed in a resonant cavity comprising a conductive polymer having the chemical formula: ##STR11## wherein R comprises (C 1 -C 10 )alkyl, R' is the same or different from R and comprises alkyl, substituted alkyl, benzyl, or substituted benzyl, the substituted compounds selected from the group consisting of --(CH 2 ) n CH 3 and --CH 2 C 6 H 4 (CH 2 ) n Y, wherein Y is O-alkyl, alkyl, alkenyl or alkynyl and n is greater than 1 and up to 200, and for structure IV, R" is the same or different from R and comprises (C 1 -C 10 )alkyl, and x is greater than about 20 and up to about 200; and a non-aqueous solvent; the solvent being substantially unable to chemically react with the polymer and to absorb and emit light at a wavelength similar to the conductive polymer and a pumping energy source producing stimulated emmission in the dye solution.
Claim 2
Dependent Claim
164 words
A dye laser, comprising: a laser dye solution disposed in a resonant cavity comprising a conductive polymer having the chemical formula: ##STR11## wherein R comprises (C 1 -C 10 )alkyl, R' is the same or different from R and comprises alkyl, substituted alkyl, benzyl, or substituted benzyl, the substituted compounds selected from the group consisting of --(CH 2 ) n CH 3 and --CH 2 C 6 H 4 (CH 2 ) n Y, wherein Y is O-alkyl, alkyl, alkenyl or alkynyl and n is greater than 1 and up to 200, and for structure IV, R" is the same or different from R and comprises (C 1 -C 10 )alkyl, and x is greater than about 20 and up to about 200; and a non-aqueous solvent; the solvent being substantially unable to chemically react with the polymer and to absorb and emit light at a wavelength similar to the conductive polymer and a pumping energy source producing stimulated emmission in the dye solution.
Claim 3
Dependent Claim
20 words
The dye laser of claim 1, wherein the wavelength of the pumping energy source comprises about 400 to 900 nm.
Claim 4
Dependent Claim
19 words
The dye laser of claim 1, wherein the wavelength of the stimulated emission comprises about 550 to 800 nm.
Claim 5
Dependent Claim
110 words
The dye laser of claim 1, wherein in the polymer R is selected from the group consisting of --CH 3 , --CH 2 CH 3 , and --CH(CH 3 ) 2 ; R' is the same or different from R and is selected from the group consisting of --(CH 2 ) n CH 3 , and --CH 2 C 6 H 4 (CH 2 ) n Y, wherein Y is O-(C1-C3)alkyl alkyl, alkenyl or alkynyl, and n is greater than 1 and up to 50; and R" is the same or different from R and R' and comprises --CH 2 CH 3 or --CH 2 CH 2 CH 3 .
Claim 6
Dependent Claim
13 words
The dye laser of claim 1, wherein the solvent comprises a liquid solvent.
Claim 7
Dependent Claim
25 words
The dye laser of claim 5, wherein the solvent is selected from the group consisting of xylene, methanol, chloroform, toluene, chlorobenzene, tetrahydrofuran, chlorobenzene, and dichlorobenzene.
Claim 8
Dependent Claim
21 words
The dye laser of claim 1, wherein the conductive polymer is present at a concentration of about 0.1 to 10 mg/ml.
Claim 9
Dependent Claim
22 words
The dye laser of claim 1, wherein the lifetime of luminescence of the dye laser solution is less than about 100 picoseconds.
Claim 10
Independent Claim
202 words
A method of producing a coherent laser emission in the operation of a dye laser in the wavelength range of about 550 to 800 nm comprising placing in an optically resonant cavity and optically pumping a laser dye solution to produce a population inversion in the laser dye solution with resulting stimulated emission, a laser dye solution comprising: a laser dye solution comprising a conductive polymer having the chemical formula: ##STR12## wherein R comprises (C 1 -C 10 )alkyl; R' is the same or different from R and comprises alkyl, substituted alkyl, benzyl, or substituted benzyl, the substituted compounds being selected from the group consisting of --(CH 2 ) 3 CH 3 and --CH 2 C 6 H 4 (CH 2 ) n Y, wherein Y is O-alkyl, alkyl, alkenyl or alkynyl and n is greater than 1 and up to 200; R" comprises (C 1 -C 10 )alkyl; x is greater than about 20 and up to 200; and a non-aqueous solvent; the solvent being substantially unable to chemically react with the polymer and to absorb and emit light at a wavelength similar to those of the conductive polymer; and a pumping energy source producing stimulated emission in the dye solution.
Claim 11
Independent Claim
202 words
A method of producing a coherent laser emission in the operation of a dye laser in the wavelength range of about 550 to 800 nm comprising placing in an optically resonant cavity and optically pumping a laser dye solution to produce a population inversion in the laser dye solution with resulting stimulated emission, a laser dye solution comprising: a laser dye solution comprising a conductive polymer having the chemical formula: ##STR12## wherein R comprises (C 1 -C 10 )alkyl; R' is the same or different from R and comprises alkyl, substituted alkyl, benzyl, or substituted benzyl, the substituted compounds being selected from the group consisting of --(CH 2 ) 3 CH 3 and --CH 2 C 6 H 4 (CH 2 ) n Y, wherein Y is O-alkyl, alkyl, alkenyl or alkynyl and n is greater than 1 and up to 200; R" comprises (C 1 -C 10 )alkyl; x is greater than about 20 and up to 200; and a non-aqueous solvent; the solvent being substantially unable to chemically react with the polymer and to absorb and emit light at a wavelength similar to those of the conductive polymer; and a pumping energy source producing stimulated emission in the dye solution.
Claim 12
Dependent Claim
160 words
A laser device, comprising a solid body of a conductive polymer having the chemical formula: ##STR13## wherein R comprises (C 1 -C 10 )alkyl, R' is the same or different from R and comprises alkyl, substituted alkyl, benzyl, or substituted benzyl the substituted compounds being selected from the group consisting of --(CH 2 ) n CH 3 and --CH 2 C 6 H 4 (CH 2 ) n Y, wherein R" is the same or different from R and R' and comprises (C 1 -C 10 ) alkyl and x is greater than about 20; and a host polymer; the host polymer being unable to chemically react with the conductive polymer and unable to absorb and emit light at a wavelength similar to the conductive polymer; means for pumping the solid body to generate light therein; and means for generating distributed feedback of the light to achieve a substantially coherent beam of light which is emitted from the solid body.
Claim 13
Dependent Claim
160 words
A laser device, comprising a solid body of a conductive polymer having the chemical formula: ##STR13## wherein R comprises (C 1 -C 10 )alkyl, R' is the same or different from R and comprises alkyl, substituted alkyl, benzyl, or substituted benzyl the substituted compounds being selected from the group consisting of --(CH 2 ) n CH 3 and --CH 2 C 6 H 4 (CH 2 ) n Y, wherein R" is the same or different from R and R' and comprises (C 1 -C 10 ) alkyl and x is greater than about 20; and a host polymer; the host polymer being unable to chemically react with the conductive polymer and unable to absorb and emit light at a wavelength similar to the conductive polymer; means for pumping the solid body to generate light therein; and means for generating distributed feedback of the light to achieve a substantially coherent beam of light which is emitted from the solid body.
Claim 14
Dependent Claim
27 words
The laser device of claim 10, wherein the conductive polymer is present in the host polymer at a concentration of about 10 -4 to 10 -1 M.
Claim 15
Dependent Claim
37 words
The laser device of claim 10, wherein the host polymer is selected from the group consisting of polymethylmethacrylate, polycarbonate, polyethylene, polyurethane, polystyrene, modified polymethylmethacrylate, epoxies, polyesters, tetramethoxysilane, methyl, methacrylate, ethylene glycol, 3-(trimethoxysilyl)propyl methacrylate and 3-glycidoxy propyl trimethoxysilane.
Claim 16
Dependent Claim
20 words
The laser device of claim 10, wherein the wavelength of the pumping energy source comprises about 400 to 900 nm.
Claim 17
Dependent Claim
19 words
The laser device of claim 10, wherein the wavelength of the stimulated emission is about 550 to 800 nm.
Claim 18
Dependent Claim
17 words
The laser device of claim 10, wherein the means for generating the distributed feedback comprises a grating.
Claim 19
Dependent Claim
40 words
The laser device of claim 15 further comprising a substrate having a surface; and wherein the grating is in the surface of the substrate; and the solid body is on the surface of the substrate and disposed over the grating.
Claim 20
Dependent Claim
16 words
The laser device of claim 16, wherein the body comprises a layer of the conductive polymer.
Claim 21
Dependent Claim
19 words
The laser device of claim 16, wherein the means for pumping the solid body comprises an optical pumping means.
Claim 22
Dependent Claim
31 words
The laser device of claim 10, wherein the means for pumping the solid body comprises a pair of contacts and means for applying a voltage across the body between the contacts.
Claim 23
Dependent Claim
26 words
The laser devices of claim 19, wherein the solid body has a pair of opposed surfaces and a separate contact is on each of the surfaces.
Claim 24
Dependent Claim
45 words
The laser device of claim 20, wherein the means for generating distributed feedback comprises one of the contacts being in the form of a plurality of strips spaced along the surface of the body with a periodicity matched to an emission wavelength of the body.
Claim 25
Dependent Claim
30 words
The laser device of claim 21, wherein the means for generating distributed feedback comprises a pair of spaced mirrors, one of them in the form of a plurality of stripes.
Claim 26
Dependent Claim
13 words
The laser device of claim 21, wherein the contacts also form the mirrors.
Claim 27
Dependent Claim
24 words
The laser device of claim 23, wherein at least one of the contacts is at least partially transparent to allow light to pass therethrough.
Claim 28
Dependent Claim
61 words
A method of producing a coherent laser emission in the operation of a diode laser in the wavelength range of about 550 to 800 nm comprising placing in an optically resonant cavity and optically pumping a laser diode to produce a population inversion in the laser diode with resulting stimulated emission, the laser diode comprising the laser device of claim 10.
Claim 29
Dependent Claim
21 words
The laser device of claim 10 wherein the solid body comprises a mixture of the conductive polymer and the host polymer.
References Cited (Backward Citations)
US4896329A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1996-08-16 | 1997-02-15 | 1997-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-08-16 | 2001-02-15 | 2001-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-08-16 | 2005-02-15 | 2005-08-17 | $7700.00 | Window Closed / Lapsed |