Patent US2797180A successfully refreshed from Google Patents.
Patent US4238742A successfully refreshed from Google Patents.
US4238742A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laser system
Assignee: United States Department of the Navy
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Filing: 1978-08-21
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Granted: 1980-12-09
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Expires: 1998-08-21
Abstract
Abstract An improved electron-beam-pumped and electron-beam-controlled (EBC) XeF laser in which a diluent gas of neon is used. Addition of neon allows increased optical extraction energies with improved performance which provides greater efficiency with increased optical pulse width.
Inventors
- 👤 Louis F. Champagne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:03
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/09; H01S3/097; H01S3/09707; H01S3/14; H01S3/22; H01S3/223; H01S3/225
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
62 words
In an improved electron-beam-excited XeF gas laser including an elongated laser cell constructed with optically aligned end windows positioned at Brewster's angle, mirror means forming a laser cavity relative to said laser cell, and window means for passing electrons into said laser cell, the improvement comprising: a XeF gaseous mixture within said laser cell in which neon is employed as a diluent.
Claim 2
Dependent Claim
62 words
In an improved electron-beam-excited XeF gas laser including an elongated laser cell constructed with optically aligned end windows positioned at Brewster's angle, mirror means forming a laser cavity relative to said laser cell, and window means for passing electrons into said laser cell, the improvement comprising: a XeF gaseous mixture within said laser cell in which neon is employed as a diluent.
Claim 3
Dependent Claim
19 words
The improvement claimed in claim 1 wherein: said neon is mixed with small amounts of argon xenon, and/or krypton.
Claim 4
Dependent Claim
17 words
The improvement claimed in claim 1 wherein: said neon is mixed with Xe and NF 3 .
Claim 5
Dependent Claim
24 words
The improvement claimed in claim 1 wherein: said neon diluent is combined with a two-component Penning mixture in which neon is the predominant component.
Claim 6
Dependent Claim
15 words
The improvement claimed in claim 1 wherein: said neon is mixed with Xe and HCl.
Claim 7
Dependent Claim
15 words
The improvement claimed in claim 1 wherein: said neon is mixed with Kr and F.
Claim 8
Dependent Claim
17 words
The improvement claimed in claim 1 wherein: said neon is mixed with Ar and N 2 .
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) | 1983-12-09 | 1984-06-09 | 1984-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-09 | 1988-06-09 | 1988-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-09 | 1992-06-09 | 1992-12-09 | $7700.00 | Window Closed / Lapsed |