US3628175A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical maser having concentric reservoirs and cylindrical resonator
Assignee: Applied Biosystems Inc
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Filing: 1963-11-29
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Granted: 1971-12-14
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Expires: 1983-11-29
Abstract
Abstract The disclosed optical maser comprises a capillary-size plasma tube communicating at each end with a pair of concentrically arranged gas reservoirs with electrodes therein for direct current operation. The reservoir end walls mount wedge-shaped Brewster angle windows relatively oriented at twice Brewster''s angle. Adjustable mirror mounts beyond each window each include a mirror carried by a diaphragm; the mirrors, windows and plasma tube all being in physical alignment.
Inventors
- 👤 Jameson Dane Rigden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:52
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/02; H01S3/03
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
143 words
each closing one end of said elongated outer tube, c. an inner elongated plasma tube extending coaxially between said stems, and d. a barrier dividing said elongated outer tube into two reservoirs and supporting said plasma tube; B. a pair of windows a. each affixed over the end of one of said stems, and b. at least one of said windows being wedge shaped to provide angular dispersion of radiation passing therethrough; C. a gas capable of maser action enclosed in said vessel; D. an anode a. supported on at least one of said conductors within one of said reservoirs inwardly of one end of said plasma tube; E. more than one thermionic cathode a. supported on said conductors within the other of said reservoirs inwardly of the other end of said plasma tube; and F. a getter in one of said reservoirs.
Claim 2
Dependent Claim
10 words
a mirror holder substantially centrally affixed to said diaphragm, and
Claim 3
Dependent Claim
154 words
each end wall having a plurality of electrical conductors passing therethrough, c. an inner elongated plasma tube in alignment with and extending between said cylindrical stems, and d. a barrier dividing said elongated outer tube into two reservoirs and supporting said plasma tube; D. a pair of windows a. each affixed to the end of one of said stems and b. at least one of said windows being wedge shaped to provide angular dispersion of radiation passing therethrough; E. a gas capable of maser action enclosed in said vessel; F. an anode a. supported on at least one of said conductors within one of said reservoirs inwardly of one end of said plasma tube; and G. more than one thermionic cathode a. supported on the other of said conductors within the other of said reservoirs inwardly of the end of said plasma tube; and H. a getter in at least one of said reservoirs.
Claim 4
Dependent Claim
22 words
The combination defined in claim 1 wherein said optical maser elements are substantially cylindrically symmetrical about the axis of said plasma tube.
Claim 5
Dependent Claim
10 words
a mirror holder generally centrally affixed in said diaphragm, and,
Claim 6
Dependent Claim
25 words
adjustment means carried by said support member and bearing against said mirror holder for tilting said mirror holder against the restraint of said flexible diaphragm.
Claim 7
Dependent Claim
24 words
In an optical maser, the combination comprising: A. a closed vessel comprising a. an elongated cylindrical outer tube; b. a pair of end walls
Claim 8
Dependent Claim
36 words
adjustment means bearing against said mirror holder for tilting said mirror holder against the restraint of said flexible diaphragm; C. a closed vessel comprising a. an elongated cylindrical outer tube; b. a pair of end walls
Claim 9
Dependent Claim
11 words
The combination defined in claim 3 wherein said getter is barium.
Claim 10
Dependent Claim
18 words
The combination defined in claim 3 wherein said plasma tube is a small diameter substantially cylindrical capillary tube.
Claim 11
Dependent Claim
25 words
The combination defined in claim 3 wherein said elongated cylindrical outer tube is constricted in the middle against said plasma tube to form said barrier.
Claim 12
Dependent Claim
112 words
In an optical maser, the combination comprising: A. a closed vessel; B. a fluid capable of maser action enclosed in said vessel; C. power means coupled to said fluid for establishing an inverted population in the fluid enclosed in said vessel; and, D. a pair of windows a. of material transparent to stimulated radiation from said fluid, b. each of said windows comprising a pair of plane surfaces forming an acute angle therebetween, and c. said windows being disposed adjacent opposed ends of said veSsel and oriented to each other such that a straight line passing through the fluid in said vessel may intersect both of said windows substantially at Brewster''s angle.
Claim 13
Dependent Claim
38 words
The combination defined in claim 7 wherein the lines of intersection of the planes of the surfaces of said windows are parallel and on the same side of a line passing through both said windows at Brewster''s angle.
Claim 14
Dependent Claim
135 words
In an optical maser, the combination comprising: A. a closed vessel; B. a fluid capable of maser action enclosed in said vessel; C. power means coupled to said fluid for establishing an inverted population in the fluid enclosed in said vessel; and, D. a pair of windows a. of material transparent to stimulated radiation from said fluid, b. each said window comprising a pair of plane substantially parallel surfaces, c. said windows being disposed adjacent opposed ends of said vessel and oriented such that a straight line passing through the fluid in said vessel may intersect both of said windows substantially at Brewster''s angle, and d. the plane surfaces of at least one of said windows being formed at a small angle to provide a controlled amount of angular dispersion in the radiation passing therethrough.
Claim 15
Dependent Claim
49 words
The combination defined in claim 9 wherein the planes of the surfaces of one of said windows intersect the planes of the surfaces of the other of said windows substantially at twice Brewster''s angle for the material of the windows at the wavelength of radiation stimulated from said fluid.
Claim 16
Dependent Claim
107 words
In an optical maser, the combination comprising: A. a closed vessel; B. a fluid capable of maser action enclosed in said vessel; C. power means coupled to said fluid for establishing an inverted population in the fluid enclosed in said vessel; and, D. a pair of windows, one adjacent each end of said vessel, a. of material transparent to stimulated radiation from said fluid, b. each said window comprising a pair of plane substantially parallel surfaces, and c. the plane surfaces of at least one of said windows being formed at a small angle to provide a controlled amount of angular dispersion in the radiation passing therethrough.
Claim 17
Dependent Claim
40 words
An optical maser oscillator cavity comprising in combination: A. an elongated generally cylindrical rigid support member; and, B. a pair of mirror mounts a. each attached to an end of said support member b. at least one mirror mount comprising
Claim 18
Dependent Claim
33 words
The optical maser oscillator cavity defined in claim 12 wherein said adjustment means comprises a fixed pin and a pair of adjustable pins bearing against said mirror holder forming therebetween two perpendicular axes.
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) | 1974-12-13 | 1975-06-14 | 1975-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-13 | 1979-06-14 | 1979-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-13 | 1983-06-14 | 1983-12-14 | $7700.00 | Window Closed / Lapsed |