US3882414A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Halide dissociative transfer laser
Assignee: McDonnell Douglas Corp
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Filing: 1972-10-05
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Granted: 1975-05-06
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Expires: 1992-10-05
Abstract
Abstract A gas laser in which stimulated emission in the visible region of the spectrum is achieved using an atomic halide such as atomic fluorine as the lasing specie, said laser having relatively very high gain on the laser transitions, being capable of operating as a sealed off system, and being capable of producing emission in the visible region of the spectrum.
Inventors
- 👤 William Q Jeffers
- 👤 Charles E Wiswall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:48
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/09; H01S3/095
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
177 words
ADISSOCIATIVE TRANSFER LASTER COMPRISING MEANS FORMING AN ELONGATED DISCHARGE CHAMBER CONSTRUCTED OF A RELATIVELY INERT SUBSTANCE, A GASEOUS MIXTURE IN SAID CHAMBER INCLUDING A MIXTURE OF HELIUM GAS, HYDROGEN FLUORIDE GAS AND MOLECULAR HYDROGEN, SAID HELIUM GAS BEING PRESENT IN THE MIXTURE IN QUANTITIES AT LEAST EQUAL TO ABOUT TEN TIMES ASGREAT BY VOLUME AS THE HYDROGEN FLUORIDE GAS, THE PRESSURE OF SAID GASEOUS MIXTURE BEING BETWEEN ABOUT 0.01 AND 2.0 TORR, OPTICAL RESONATOR MEANSCAPABLE OF SUSTAINING OSCIILLATION AT THE WAVELENGTHS 7037.45A, 7127.77A, 7202.37A AND INCLUDING A PAIR OF SPACED REFLECTORS POSITIONED TO BE IN OPTICAL COMMUNICATION WITH EACH OTHER THROUGH THE GASEOUS MIXTURE, ONE OF SAID REFLECTORS BEING LOCATED ADJACENT TO EACH OPPOSITE END OF THE DISCHARGE CHAMBER, APAIR OF SPACED ELECTRODES MOUNTED EXTENDING INTO THE DISCHARGE CHAMBER ADJACENNT OPPOSITE ENDSTHEREOF IN THE SPACE BETWEEN THE SPACED REFLECTORS, AND MEANSINCLUDING ASOURCE OF VOLTAGE CONNECTED BETWEEN SAID ELECTRODES TO PRODUCE AN ELECTRIC DISCHARGE THROUGH THE GASEOUS MIXTURE SUFFICIENT TO CAUSE AT LEAST SOME OF THE HELIUM GAS TO GO INTO A METASTABLE CONDITION AND TO PRODUCE COLLISIONS
Claim 2
Dependent Claim
177 words
ADISSOCIATIVE TRANSFER LASTER COMPRISING MEANS FORMING AN ELONGATED DISCHARGE CHAMBER CONSTRUCTED OF A RELATIVELY INERT SUBSTANCE, A GASEOUS MIXTURE IN SAID CHAMBER INCLUDING A MIXTURE OF HELIUM GAS, HYDROGEN FLUORIDE GAS AND MOLECULAR HYDROGEN, SAID HELIUM GAS BEING PRESENT IN THE MIXTURE IN QUANTITIES AT LEAST EQUAL TO ABOUT TEN TIMES ASGREAT BY VOLUME AS THE HYDROGEN FLUORIDE GAS, THE PRESSURE OF SAID GASEOUS MIXTURE BEING BETWEEN ABOUT 0.01 AND 2.0 TORR, OPTICAL RESONATOR MEANSCAPABLE OF SUSTAINING OSCIILLATION AT THE WAVELENGTHS 7037.45A, 7127.77A, 7202.37A AND INCLUDING A PAIR OF SPACED REFLECTORS POSITIONED TO BE IN OPTICAL COMMUNICATION WITH EACH OTHER THROUGH THE GASEOUS MIXTURE, ONE OF SAID REFLECTORS BEING LOCATED ADJACENT TO EACH OPPOSITE END OF THE DISCHARGE CHAMBER, APAIR OF SPACED ELECTRODES MOUNTED EXTENDING INTO THE DISCHARGE CHAMBER ADJACENNT OPPOSITE ENDSTHEREOF IN THE SPACE BETWEEN THE SPACED REFLECTORS, AND MEANSINCLUDING ASOURCE OF VOLTAGE CONNECTED BETWEEN SAID ELECTRODES TO PRODUCE AN ELECTRIC DISCHARGE THROUGH THE GASEOUS MIXTURE SUFFICIENT TO CAUSE AT LEAST SOME OF THE HELIUM GAS TO GO INTO A METASTABLE CONDITION AND TO PRODUCE COLLISIONS
References Cited (Backward Citations)
US3706942A
Cited
US3676797A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-05 | 1978-11-04 | 1979-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-05 | 1982-11-04 | 1983-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-05 | 1986-11-04 | 1987-05-06 | $7700.00 | Window Closed / Lapsed |