US4606030A
Expired / Lapsed
US
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Vacuum ultraviolet laser
Assignee: United States Department of Energy
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Filing: 1984-07-06
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Granted: 1986-08-12
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Expires: 2004-07-06
Abstract
Abstract Transitions from the 2p 4 ( 1 S 0 )3s 2 S 1/2 state of atomic fluorine to all allowed lower states produces laser emission at six new wavelengths: 680.7 Å, 682.6 Å, 3592.7 Å, 3574.1 Å, 6089.2 Å, and 6046.8 Å. Coherent radiation at these new wavelengths can be generated in an atomic fluorine laser operated as an amplifier or as an oscillator.
Inventors
- 👤 Joseph Berkowitz
- 👤 Branko M. Ruscic
- 👤 John P. Greene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:59
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/14; H01S3/22
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
82 words
An atomic fluorine laser amplifier comprising: a chamber; a fluorine containing gas flowing in said chamber; electric discharge means to dissociate said gas to provide a population inversion of fluorine atoms in an exited state; and means for directing incident radiation at one or more wavelengths selected from the group consisting of 6089.2 Å, 6046.8 Å, 3592.7 Å, 3574.1 Å, 680.7 Å and 682.6 Å through said chamber to produce amplified spontaneous stimulated emission from said excited fluorine atoms at corresponding wavelengths.
Claim 2
Dependent Claim
82 words
An atomic fluorine laser amplifier comprising: a chamber; a fluorine containing gas flowing in said chamber; electric discharge means to dissociate said gas to provide a population inversion of fluorine atoms in an exited state; and means for directing incident radiation at one or more wavelengths selected from the group consisting of 6089.2 Å, 6046.8 Å, 3592.7 Å, 3574.1 Å, 680.7 Å and 682.6 Å through said chamber to produce amplified spontaneous stimulated emission from said excited fluorine atoms at corresponding wavelengths.
Claim 3
Dependent Claim
16 words
The laser of claim 1 further comprising a diluent carrier gas of helium in said chamber.
Claim 4
Dependent Claim
30 words
The laser of claim 2 wherein the ratio of fluorine containing gas to helium is approximately 5% and the pressure of said flowing gases is from 0.1 to 1.0 torr.
Claim 5
Dependent Claim
22 words
The laser of claim 3 wherein said discharge comprises a microwave discharge operating at a frequency in the range of 2.45 GHz.
Claim 6
Dependent Claim
14 words
The laser of claim 4 wherein said fluorine containing gas is SF 6 .
Claim 7
Dependent Claim
14 words
The laser of claim 4 wherein said fluorine containing gas is F 2 .
Claim 8
Dependent Claim
16 words
The laser of claim 1 wherein said means for directing incident light comprises a fluorine discharge.
Claim 9
Dependent Claim
66 words
An atomic fluorine laser comprising: an optical resonator cavity capable of sustaining oscillations at one or more wavelengths of 6089.2 Å, 6046.8 Å, 3592.7 Å and 3574.1 Å, a fluorine containing gas flowing in said cavity; microwave discharge means to dissociate said gas to provide a population inversion of fluorine atoms in an excited state; and means for abstracting an output beam from said resonant cavity.
Claim 10
Dependent Claim
66 words
An atomic fluorine laser comprising: an optical resonator cavity capable of sustaining oscillations at one or more wavelengths of 6089.2 Å, 6046.8 Å, 3592.7 Å and 3574.1 Å, a fluorine containing gas flowing in said cavity; microwave discharge means to dissociate said gas to provide a population inversion of fluorine atoms in an excited state; and means for abstracting an output beam from said resonant cavity.
Claim 11
Dependent Claim
16 words
The laser of claim 8 further comprising a diluent carrier gas of helium in said cavity.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-08-11 | 1990-02-10 | 1990-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-08-11 | 1994-02-10 | 1994-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-08-11 | 1998-02-10 | 1998-08-12 | $7700.00 | Window Closed / Lapsed |