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3970964 |
High-power argon/nitrogen transfer laser
A new class of high-power lasers capable of high efficiencies in the visible and shorter wave lengths is taught, employing an excitation energy transfer mechanism from a pumped noble donor gas,...
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3956712 |
Area electron gun
A plurality of thermionic filaments are arranged in side-by-side relationship. A spreader electrode which may be in the form of a flat plate is placed on one side of the filaments, while an anode...
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3952263 |
Fission fragment excited laser system
A laser system and method for exciting lasing action in a molecular gas lasing medium which includes cooling the lasing medium to a temperature below about 150 K and injecting fission fragments...
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3931589 |
Perforated wall hollow-cathode ion laser
An improved ion-laser system utilizing a cold, perforated-wall hollow-cate electron-beam discharge to produce a high energy, high intensity self-collimated electron-beam to provide a high...
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3928816 |
Far infrared waveguide laser
A far infrared (FIR) laser is provided which uses a dielectric or metal tube waveguide resonator. A CO 2 or CO waveguide laser is utilized to pump the FIR laser.
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3898587 |
Multiple-source plasma-overlap laser
There are disclosed lasers employing lithium-indium ion mixtures or beryllium-gallium ion mixtures, in which the active medium is produced by overlap of two plasmas derived from optical or electron...
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3882414 |
Halide dissociative transfer laser
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...
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3864643 |
Traveling wave vacuum spark and a travelling wave flashlamp
A traveling wave vacuum spark laser comprising an elongated container containing a gas therein in combination with elongated electrodes or a plurality of tiny pin-like electrodes which are...
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3860310 |
METHOD OF FABRICATING A GAS LASER
A cold cathode gas laser, in which the cathode is rendered chemically clean before being oxidized, and in which gas pressure and volume and cathode current density are selected to provide cathode...
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3860884 |
Optically pumped laser using N2 O or similar gas mixed with energy-transferring CO2
There is described a powerful excitation technique for a mixture of molecular gases in which a combination of optical pumping and resonant energy transfer is used. An optically-pumped N 2 O laser...
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3857793 |
FLUORESCENT ORGANIC COMPOUND LASER
A discharge excited laser wherein the active material is a vaporized highly fluorescent aromatic organic compound, such as perylene, coronene, p-terphenyl, 1,6-diphenyl-hexa-1,3,5-triene,...
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3848203 |
TEA LASER
A TEA gas laser operated by condenser discharge of substantially more than 30 kilovolts directly across a multiplicity of pin electrodes and opposing electrode means to increase uniformity of the...
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3842364 |
PHOTOCHEMICAL IODINE LASER
The incorporation of a free radical source in an iodine laser for the purpose of removing iodine in its ground state as well as iodine molecules that serve as quenchers of excited iodine. The...
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3815043 |
LASER SYSTEM EMPLOYING RAMAN ANTI-STOKES SCATTERING
A laser system which employs a Raman anti-Stokes scattering process to produce high energy pulsed outputs of narrow pulsewidth and short wave-length, particularly useful in controlled fusion...
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3808551 |
SECONDARY FOIL FOR APPARATUS PRODUCING A CONTROLLED DISCHARGE WHICH PROVIDES MOLECULAR EXCITATION OF A GASEOUS WORKING MEDIUM
An electron beam (E-beam) laser has a vacuum chamber in which an E-beam terminal generates a directed stream of electrons. A primary foil which seals the chamber is in the path of the stream of...
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3806834 |
STARK-EFFECT MODULATION OF CO LASER WITH NH D
The molecular stark-effect in NH 2 D is used to modulate the 10.6μ, P(20) line of a CO 2 laser. A 25 cm cell external to the laser is filled with about equal parts of NH 3 and ND 3 to a total...
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3792371 |
GAS LASER
A large, continuous laser oscillation output of Kr + II gas can be obtained by exciting a mixture gas of krypton and helium filled in a capillary discharge tube at a total mixture gas pressure of...
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3789319 |
HYDROGEN ROTATION-VIBRATION OSCILLATOR
A laser system wherein molecular species of hydrogen and hydrogen isotopes are induced to oscillate on rotational-vibrational levels by subjecting the hydrogen to a transverse beam of electrons of...
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3784928 |
GAS DISCHARGE DEVICE AND ELECTRODE FOR USE THEREIN
A carbon dioxide laser having a dense ceramic casing of high thermal conductivity which is non-reactive with the gas mixture. The anode and cathode electrodes of the laser comprise a...
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3766491 |
RADIATION AND PRESSURE BROADENING TECHNIQUE FOR SINGLE FREQUENCY GAS LASERS
Single frequency operation is achieved in a gas laser by mutually adapting the total gas pressure and the radiation density so that twice the radiation-broadened homogeneous linewidth is greater...
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3753152 |
ELECTRICAL WAVE PUMPED PULSED LASER
A pulsed laser wherein emission is generated from a gaseous gain medium, the gain medium being pumped by at least one traveling high voltage electromagnetic pulse having a duration too short for...
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3720877 |
METAL VAPOR DISCHARGE TUBE USING METAL AND SEMI-METAL COMPOUNDS IN A DISCHARGE TUBE
A metal vapor discharge tube device including a discharge tube and means for introducing a metal or semi-metal into the discharge tube without auxiliary heating. The metal or semi-metal is...
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3718868 |
I INVERTED LAMB DIP STABILIZED He-Ne LASER
An extremely accurately resettable He-Ne laser including a gaseous I 2 129 absorption cell in the laser cavity, and a method of stabilizing a He-Ne laser on an Inverted Lamb Dip of I 2 129. The...
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3704428 |
CARBON MONOXIDE LASER FROM HELIUM-AIR-METHANE MIXTURE
A gas laser charged with a mixture of helium-air-methane, operable in both the Q-switched and CW mode, forms vibrationally excited CO molecules by the electric discharge induced chemical oxidation...
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3701046 |
GAS LASER MATERIALS AND SYSTEM THEREFOR
The present invention provides gas laser materials and a laser system utilizing them to produce laser emissions in the far infrared region between 300 microns and 1,000 microns. Specific materials...
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3679997 |
NOBLE GAS-MOLECULAR NITROGEN LASER
Optical transmitter or amplifier apparatus having as its operating medium a gas mixture including a noble gas and up to about one mole per cent of molecular nitrogen, said mixture being maintained...
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3676797 |
ATOMIC FLUORINE LASER
Compound gases having fluorine as a constituent are combined with helium in an enclosure within an optical cavity and are subjected to the discharge of electrical energy. The electric discharge...
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3633125 |
GAS LASER WITH MEANS FOR SPECIFICALLY CREATING AND MAINTAINING TURBULENCE IN THE GASEOUS LASER MEDIUM
A gaseous laser having improved output characteristics comprising an elongated chamber containing a supply of a selected molecular gaseous medium, means for electrical discharge pumping or...
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3628177 |
OPTICAL MODULATION SYSTEM
Intensity, color and/or spatial modulation of a laser light beam is accomplished by providing within the resonant cavity of a gas laser, pump means for the gas which comprises at least in part an...
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3628174 |
OPTICALLY PUMPED SUBMILLIMETER-WAVE AND MILLIMETER-WAVE GAS LASERS
There is disclosed the first optically pumped submillimeter-wave laser. Oscillation is obtained on six pure rotational transitions of wavelength longer than 400 micrometers in methyl fluoride...
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3621460 |
SPUTTERED VAPOR LASER
A sputtered vapor laser which features two discharges within a single las apparatus. A secondary discharge is caused to occur between an anode and a hollow cathode whose surface is coated with a...
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3618129 |
LASER EMPLOYING SELECTED CYANOGEN HALIDES AS LASING GASES
A gas laser utilizes essentially vibrationally excited nitrogen or carbon monoxide as an energizing gas and, through resonant collisions with a lasing gas, transfers the energy to the lasing gas,...
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3617933 |
METHOD FOR GENERATING OSCILLATION IN KRYPTON LASER
Disclosed herein is a method for obtaining oscillation in krypton ion gas laser, wherein such oscillation is not subject to the phenomenon of instability which method is carried out by causing...
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3614660 |
LASER EMPLOYING ALIPHATIC NITRILES AS A LASING GAS
A gas laser utilizes essentially vibrationally excited nitrogen or carbon monoxide as an energizing gas and, through resonant collisions with a lasing gas, transfers the energy to the lasing gas,...
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3614657 |
CYLINDRICAL PLASMA LASER
An apparatus and method for obtaining high-power output oscillations from a gas laser by subjecting the gas to a magnetic field parallel to the axis of a tube containing the gas and to...
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3611186 |
LASER INCLUDING A TUBE INTERCONNECTING THE ENDS OF THE DISCHARGE TUBE
An infrared emission production device having a mixture of carbonic acid gas, nitrogen, helium and water vapor in a closed discharge tube, the ends of the discharge tube connected by a connection...
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3609570 |
LIGHT EXCITED MASER
1. Apparatus for amplifying or generating microwave frequency oscillations through amplification by stimulated emission of radiation, the energy for such amplification being supplied by...
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3605038 |
POPULATION INVERSION AND GAIN IN MOLECULAR GASES EXCITED BY VIBRATIONALLY EXCITED HYDROGEN
Population inversion and optical gain is obtained from a gaseous mixture which includes vibrationally excited hydrogen, helium, and a polyatomic molecular gas which has a resonant energy level near...
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3599107 |
THERMALLY COMPENSATED LASER DISCHARGE STRUCTURE
A gas laser including a quartz insulator tube enclosing a stack of graphite discs having a central aperture forming a laser discharge path wherein the individual discs are spatially separated and...
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3586994 |
LASER DEVICE WITH GASEOUS MEDIUM FOR INCREASED ENERGY OUTPUT
The gaseous medium for a laser device for radiation amplification comprises carbon dioxide at a partial pressure of about 1.0 Torr, nitrogen at a partial pressure of about 4.0 Torr and hydrogen at...
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3586996 |
MAGNETIC FIELD LASER STRUCTURE
A gas laser having electromagnetic means to concentrate plasma in the laser tube's capillary and formed by three spaced, coaxial tubes, the inner and first of which defines the capillary, the first...
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3573657 |
NITROGEN-PHOSPHINE LASER (U)
A gas laser utilizes vibrationally excited nitrogen as an energizing gas and, through resonant collisions with a lasing gas, transfers the energy to the lasing gas, preferentially to an upper laser...
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3568090 |
NITROGEN-HYDROGEN SELENIDE LASER (U)
A gas laser utilizes vibrationally excited nitrogen as an energizing gas and, through resonant collisions with a lasing gas, transfers the energy to the lasing gas, preferentially to an upper laser...
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3537030 |
GAS LASER DEVICE WITH MEANS FOR INDICATING OPTIMUM DISCHARGE CONDITIONS
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3509486 |
GAS LASER EMPLOYING CARBON DISULFIDE AND NITROGEN
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3496486 |
GAS LASER HAVING CONCENTRICALLY ARRANGED HYPERBOLOIDAL TUBE SECTIONS
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3487685 |
ABSORPTION RADIOMETER
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3477038 |
FREON-RARE GAS LASER
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3469922 |
GAS RING LASER GYROSCOPE SYSTEM
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3458830 |
TRANSMISSION LINE GAS LASER
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