US4797889A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solid state molecular laser
Assignee: Boston University
•
Filing: 1987-06-24
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Granted: 1989-01-10
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Expires: 2007-06-24
Abstract
Abstract A solid state laser in which molecules containing transition metal ions form the lasing medium. More particularly, the electronic states of molecular complexes containing transition metal ions, which are in closed shell configurations, are pumped by an ultraviolet source to emit coherent radiation.
Inventors
- 👤 Alexander Lempicki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:23
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/14
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
48 words
A laser comprising: a solid state lasing medium having a molecular emitting species such that an element of the molecular species has a closed shell configuration; optical means for exciting the states of said species; and an optical resonant cavity for oscillating coherent radiation emitted by the medium.
Claim 2
Dependent Claim
48 words
A laser comprising: a solid state lasing medium having a molecular emitting species such that an element of the molecular species has a closed shell configuration; optical means for exciting the states of said species; and an optical resonant cavity for oscillating coherent radiation emitted by the medium.
Claim 3
Dependent Claim
14 words
A laser as defined in claim 1 wherein said medium is a single crystal.
Claim 4
Dependent Claim
16 words
A laser as defined in claim 1 wherein said medium is further comprised of a glass.
Claim 5
Dependent Claim
14 words
A laser of claim 1 wherein said medium is further comprised of a glass-ceramic.
Claim 6
Dependent Claim
26 words
A laser as defined in claim 1 wherein said medium includes as the emitting species ions where the outer d shell has a closed shell configuration.
Claim 7
Dependent Claim
19 words
A laser as defined in claim 1 wherein said optical means for exciting is comprised of an excimer laser.
Claim 8
Dependent Claim
48 words
A laser as defined in claim 5 wherein said ions are selected from the group consisting of Ti +4 , Zr +4 , Hf +4 , V +5 , Nb +5 , Ta +5 , Cr +6 , Mo +6 , W +6 , and Mn +7 .
Claim 9
Dependent Claim
21 words
A laser as defined in claim 7 wherein the ions in said medium are bound with oxygen to form complexes therewith.
Claim 10
Dependent Claim
21 words
A laser as defined in claim 7 wherein the ions in said medium are bound with halogens to form complexes therewith.
Claim 11
Dependent Claim
25 words
A laser as defined in claim 7 wherein the ions in said medium are bound with mixtures of oxygens and halogens to form complexes therewith.
Claim 12
Dependent Claim
20 words
A laser as defined in claim 1 wherein said cavity is further comprised of means for tuning the coherent radiation.
Claim 13
Dependent Claim
18 words
A laser as defined in claim 1 wherein the optical means has a wavelength within the ultraviolet spectrum.
Claim 14
Dependent Claim
25 words
A laser as defined in claim 1 wherein said medium includes as said emitting species a mixture of ions each in a closed shell configuration.
Claim 15
Dependent Claim
51 words
A laser as defined in claim 13 wherein said mixture is comprised of ions selected from the group consisting of Ti +4 , Zr +4 , Hf +4 , V +5 , Nb +5 , Ta +5 , Cr +6 , Mo +6 , W +6 , and Mn +7 .
Claim 16
Dependent Claim
60 words
A solid state lasing medium including molecules having ions selected from the group consisting of Ti +4 , Zr +4 , Hf +4 , V +5 , Nb +5 , Ta +5 , Cr +6 , Mo +6 , W +6 , and Mn +7 as an emitting species such that said molecules lase when optically excited in a cavity.
Claim 17
Dependent Claim
60 words
A solid state lasing medium including molecules having ions selected from the group consisting of Ti +4 , Zr +4 , Hf +4 , V +5 , Nb +5 , Ta +5 , Cr +6 , Mo +6 , W +6 , and Mn +7 as an emitting species such that said molecules lase when optically excited in a cavity.
Claim 18
Dependent Claim
24 words
A solid state lasing medium as defined in claim 15 wherein said ions in said medium are bound with oxygen to form complexes therewith.
Claim 19
Dependent Claim
24 words
A solid state lasing medium as defined in claim 15 wherein said ions in said medium are bound with fluorine to form complexes therewith.
Claim 20
Dependent Claim
28 words
A solid state lasing medium as defined in claim 15 wherein the ions in said medium are bound with mixtures of oxygen and halogens to form complexes therewith.
Claim 21
Dependent Claim
61 words
A laser comprising: a solid state lasing medium having a molecular complex such that an element of said complex has a closed shell configuration; optical means for exciting the molecular states of said complex such that there is an intra-molecular transfer of an electron into the closed shell; and an optical resonant cavity for oscillating coherent radiation emitted by the medium.
Claim 22
Dependent Claim
61 words
A laser comprising: a solid state lasing medium having a molecular complex such that an element of said complex has a closed shell configuration; optical means for exciting the molecular states of said complex such that there is an intra-molecular transfer of an electron into the closed shell; and an optical resonant cavity for oscillating coherent radiation emitted by the medium.
Claim 23
Dependent Claim
48 words
A laser as defined in claim 19 wherein said element is selected from the group consisting of Ti +4 , Zr +4 , Hf +4 , V +5 , Nb +5 , Ta +5 , Cr +6 , Mo +6 , W +6 , and Mn +7 .
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-01-10 | 1992-07-11 | 1993-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-01-10 | 1996-07-11 | 1997-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-01-10 | 2000-07-11 | 2001-01-10 | $7700.00 | Window Closed / Lapsed |