US4785460A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laser generated by the interaction of molecules containing the azide radical and a molecule containing a halogen atom
Assignee: Boeing North American Inc
•
Filing: 1987-06-11
•
Granted: 1988-11-15
•
Expires: 2007-06-11
Abstract
Abstract Disclosed is a chemically pumped laser system including means for generating chemicals that react to produce electronically excited molecules used by the laser system.
Inventors
- 👤 Robert A. Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:22
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/09; H01S3/095
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
114 words
A method for generating a lasing effect in a chemically pumped laser using molecules containing the azide radical and a molecule containing an iodine atom, the method comprising: (a) providing a replenishable chemical source of N 3 and I; (b) introducing by mixing gas streams, the N 3 and I into a laser cavity; (c) reacting the N 3 and I in the laser cavity; (d) producing excited species within the laser cavity from the reaction of N 3 and I; (e) generating a lasing effect by the interaction of reactants contained within the laser cavity, said reactants selected from excited species and I; and (f) cooling the laser system to remove thermal energy.
Claim 2
Independent Claim
114 words
A method for generating a lasing effect in a chemically pumped laser using molecules containing the azide radical and a molecule containing an iodine atom, the method comprising: (a) providing a replenishable chemical source of N 3 and I; (b) introducing by mixing gas streams, the N 3 and I into a laser cavity; (c) reacting the N 3 and I in the laser cavity; (d) producing excited species within the laser cavity from the reaction of N 3 and I; (e) generating a lasing effect by the interaction of reactants contained within the laser cavity, said reactants selected from excited species and I; and (f) cooling the laser system to remove thermal energy.
Claim 3
Dependent Claim
19 words
The method of claim 1 in which the chemical source of N 3 is thermally decomposing IN 3 .
Claim 4
Dependent Claim
20 words
The method of claim 1 in which the chemical source of N 3 is a thermally decomposing alkali metal azide.
Claim 5
Dependent Claim
20 words
The method of claim 1 in which the chemical source of N 3 is decomposing Ba(N 3 ) 2 .
Claim 6
Dependent Claim
40 words
The method of claim 1 in which the chemical source of N 3 is the reaction of H with FN 3 in a gas phase wherein the FN 3 is produced by reacting FN 3 with an alkali metal azide.
Claim 7
Dependent Claim
18 words
The method of claim 1 in which the chemical source of I is thermally dissociated I 2 .
Claim 8
Dependent Claim
23 words
The method of claim 1 in which the chemical source of I is the reaction of I 2 with an alkali metal atom.
Claim 9
Dependent Claim
20 words
The method of claim 1 in which the chemical source of I is the reaction of I 2 with Ba.
Claim 10
Dependent Claim
26 words
The method of claim 1 in which the reaction of N 3 and I occurs by mixing streams of gas separately containing N 3 and I.
Claim 11
Dependent Claim
17 words
The method of claim 1 in which the reaction I+N.sub.3 →NI(a.sup.1 Δ)+N.sub.3 generates an electronically excited specie.
Claim 12
Dependent Claim
16 words
The method of claim 1 in which I(.sup.2 P.sub.3/2)+NI(a.sup.1 Δ)→I*(.sup.2 P.sub.1/2)+NI(X) generates an electronically excited specie.
Claim 13
Dependent Claim
17 words
The method of claim 1 in which lasing is generated according to the reaction hν+I*(.sup.2 P.sub.1/2)→2hν+I(.sup.2 P.sub.3/2).
Claim 14
Dependent Claim
19 words
The method of claim 1 in which the reaction I*(.sup.2 P.sub.1/2)+NI(a.sup.1 Δ)→I(.sup.2 P.sub.3/2)+NI(b.sup.1 Σ) generates an electronically excited specie.
Claim 15
Dependent Claim
16 words
The method of claim 1 in which lasing is generated according to the reaction hν+NI(b.sup.1 Σ)→2hν+NI(X).
References Cited (Backward Citations)
US4165773A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-11-15 | 1992-05-16 | 1992-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-11-15 | 1996-05-16 | 1996-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-11-15 | 2000-05-16 | 2000-11-15 | $7700.00 | Window Closed / Lapsed |