Patent US336712A successfully refreshed from Google Patents.
Patent EP0197344A1 successfully refreshed from Google Patents.
Patent US4159453A successfully refreshed from Google Patents.
US4159453A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrogen-gas-laser method and apparatus
Assignee: Max-Planck-Gesellschaft zur Förderung der Wissenschaften eV
•
Filing: 1978-07-25
•
Granted: 1979-06-26
•
Expires: 1998-07-25
Abstract
Abstract The present specification describes a method for pumping molecular hydrogenn a hydrogen laser. The pumping is carried out via noble gas atoms which are in a metastable state of excitation and preferably ionized. A hydrogen laser operating in accordance with this method comprises a gas filling including molecular hydrogen as a laser medium and at least one noble gas, preferably argon, and pumping means adapted to produce noble gas atoms which are in a metastable state of excitation, preferably metastable argon ions.
Inventors
- 👤 Dietrich Brandt
- 👤 Christoph Ottinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:16
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/14; H01S3/22; H01S3/223
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
98 words
A method for exciting molecular hydrogen in a hydrogen laser in which hydrogen and a noble gas are confined in a laser vessel, and stimulated to laser action, comprising the steps of exciting noble gas atoms to their single ionized state by applying energy to the noble gas in the laser vessel, said noble gas ions transferring energy to the hydrogen molecules for stimulating said laser action; and wherein the level of excitation is selected to provide for laser transition between the ##EQU6## states to provide for radiation output forming a continuum between 1600 and 3600 A units.
Claim 2
Independent Claim
98 words
A method for exciting molecular hydrogen in a hydrogen laser in which hydrogen and a noble gas are confined in a laser vessel, and stimulated to laser action, comprising the steps of exciting noble gas atoms to their single ionized state by applying energy to the noble gas in the laser vessel, said noble gas ions transferring energy to the hydrogen molecules for stimulating said laser action; and wherein the level of excitation is selected to provide for laser transition between the ##EQU6## states to provide for radiation output forming a continuum between 1600 and 3600 A units.
Claim 3
Dependent Claim
19 words
A method in accordance with claim 1, wherein the noble gas comprises at least one of: argon; krypton; xenon.
Claim 4
Independent Claim
65 words
A method for excitation of molecular hydrogen in a hydrogen laser in which hydrogen and a noble gas are confined in a laser vessel, and stimulated to laser action by applying energy to the gases in the laser vessel, wherein the energy level of excitation applied to the hydrogen molecules is selected to provide for stimulated forced transition into a non-binding or dissociative molecular state.
Claim 5
Independent Claim
65 words
A method for excitation of molecular hydrogen in a hydrogen laser in which hydrogen and a noble gas are confined in a laser vessel, and stimulated to laser action by applying energy to the gases in the laser vessel, wherein the energy level of excitation applied to the hydrogen molecules is selected to provide for stimulated forced transition into a non-binding or dissociative molecular state.
Claim 6
Dependent Claim
30 words
A method in accordance with claim 3, wherein the excitation energy is applied to singly ionized noble gas atoms and exciting said hydrogen molecules to a metastable state of excitation.
Claim 7
Dependent Claim
19 words
A method in accordance with claim 3, wherein the noble gas comprises at least one of: argon; krypton; xenon.
Claim 8
Dependent Claim
14 words
A method according to claim 3, wherein the excited level is the level ##EQU7##
Claim 9
Dependent Claim
86 words
A hydrogen laser having a gas filling which comprises molecular hydrogen as a laser medium, and means to excite the molecular hydrogen, wherein the gas filling comprises at least one noble gas in addition to hydrogen and the excitation means ionize the noble gas atoms to produce singly ionized noble gas atoms and excite said noble gas atoms to a metastable state of excitation, and to transition between the ##EQU8## states to provide for radiation output which forms a continuum between 1600 and 3600 A units.
Claim 10
Dependent Claim
86 words
A hydrogen laser having a gas filling which comprises molecular hydrogen as a laser medium, and means to excite the molecular hydrogen, wherein the gas filling comprises at least one noble gas in addition to hydrogen and the excitation means ionize the noble gas atoms to produce singly ionized noble gas atoms and excite said noble gas atoms to a metastable state of excitation, and to transition between the ##EQU8## states to provide for radiation output which forms a continuum between 1600 and 3600 A units.
Claim 11
Dependent Claim
26 words
A hydrogen laser in accordance with claim 7, wherein the gas filling consists of a mixture of hydrogen and at least one of: argon; krypton; xenon.
Claim 12
Dependent Claim
23 words
A hydrogen laser in accordance with claim 7, wherein the excitation means comprises means to produce a gas discharge in the gas filling.
Claim 13
Dependent Claim
24 words
A hydrogen laser in accordance with claim 7, wherein the excitation means comprises means to produce a non-self-supporting gas discharge in a gas filling.
References Cited (Backward Citations)
US3412345A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-06-25 | 1982-12-25 | 1983-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-06-25 | 1986-12-25 | 1987-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-06-25 | 1990-12-25 | 1991-06-26 | $7700.00 | Window Closed / Lapsed |