Class 372/73 - High-energy particles

Subclass of Class 372 - Coherent light generators
Definition: Subject matter in which the pumping means is a nuclear reactor,
No. of patents: 51
Last issue date: 10/21/2008

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Number	Title	Issue Date
7439530	LPP EUV light source drive laser system An apparatus and method is disclosed which may comprise a laser produced plasma EUV system which may comprise a drive laser producing a drive laser beam; a drive laser beam first path having a first axis; a drive laser redirecting mechanism transferring the drive la...	10/21/2008
7321604	Ultra-short wavelength x-ray system A method and apparatus to generate a beam of coherent light including x-rays or XUV by colliding a high-intensity laser pulse with an electron beam that is accelerated by a synchronized laser pulse. Applications include x-ray and EUV lithography, protein structural ...	01/22/2008
7095775	Dual-flow common combustor chemical laser The invention herein is directed to a dual-chamber combustion laser assembly having lighter weight (per unit flow area), a more compact, flexible configuration for packaging in spacecraft, aircraft, or ground mobile vehicles, higher mass efficiency from lower heat l...	08/22/2006
7016390	Ultrabright tunable coherent multikilovolt x-ray source The generation of ultrabright, multikilovolt coherent tunable x-radiation resulting from amplification on hollow atom transition arrays is described. Amplification has been demonstrated by physical evidence including (a) the observation of selected spectral componen...	03/21/2006
6795460	Laser device and an optical signal amplifier using thereof A laser device for generating a laser beam and an optical signal amplifier using thereof for amplifying an optical signal are disclosed. The laser device comprises an optical fiber having a core portion in which a laser medium is doped and a cladding portion coverin...	09/21/2004
6744801	Monolithic solid state laser assembly and method of manufacture A one piece laser assembly including a rod of gain medium with one end-face bonded to a broad end-face on a stack of optical wafers that process light differently and mirrors plated on the remaining exposed end-faces of the rod and the stack of wafers. ...	06/01/2004
6738407	Semiconductor laser light emitting apparatus and solid-state laser rod pumping module A solid-state laser rod pumping module has a stack-type semiconductor laser including a plurality of bar-shaped components that are stacked in a direction parallel to the axis of a solid-state laser rod. Each bar-shaped component includes a plurality of laser-light-...	05/18/2004
6590923	Optically pumped direct extraction electron spin filter system and method of use Disclosed are a system, and method, for producing a directly extracted flow of preferred-spin-polarization-direction electrons. The present invention optically pumped electron spin filter system provides a mixture of, typically alkali, atoms and electron ...	07/08/2003
6529540	Variable output coupling laser A method and circuit is disclosed for providing a control signal to a laser cavity controller. The cavity has two completely reflective surfaces. A long lived laser medium stores energy within the cavity. A computer generated waveform generated from enoug...	03/04/2003
6259716	Microwave excited gas laser oscillator In one discharge tube in which laser gas flows, a plurality of microwave generating units composed of microwave power sources, magnetrons and waveguides are disposed, and each magnetron oscillates intermittently by switching the drive of the microwave pow...	07/10/2001
6128325	Lasers pumped by thermally stimulated photon emitter A system for thermally stimulating a laser emissive device comprises a thermal generating device, a photon emissive device that is capable of generating photons upon exposure to thermal energy, a laser emissive source, and an optical waveguide interposed ...	10/03/2000
6111277	Semiconductor device as well as light emitting semiconductor device A semiconductor device such as a light emitting semiconductor device comprising a mask layer having opening areas and a selective growing layer comprising a semiconductor grown selectively by way of the mask layer, with each of the mask layer and the sele...	08/29/2000
6097740	Method and apparatus of producing coherent high-frequency electromagnetic radiation by interacting beams of ions and electrons This disclosure relates to the production of coherent waves of electromagnetic radiation, especially of short wavelengths including X rays, in the form of pulses or continuous beams, utilizing mutually interacting beams of charged particles that include p...	08/01/2000
5896407	High-efficiency plasma confining method, laser oscillating method and laser oscillator A high-efficiency plasma confining method, and a laser oscillating method of oscillating a laser, confine a plasma generated by entering a laser beam via an entry of a superconducting cylinder within the cylinder. The methods include the step of inhibitin...	04/20/1999
5859867	Microlaser In a single-atom microlaser, a pair of opposed reflectors define a high-finesse or "high-Q" optical cavity therebetween. A source delivers a stream of multiple-energy-level atoms or particles into the cavity. Each individual atom in the stream is excited ...	01/12/1999
5774491	Energy exchange between a laser beam and charged particles using inverse diffraction radiation and method for its use A method and apparatus for exchanging energy between relativistic charged particles and laser radiation using inverse diffraction radiation or inverse transition radiation. The beam of laser light is directed onto a particle beam by means of two optical e...	06/30/1998
5617443	Method and apparatus for generating gamma-ray laser An electron beam and a positron beam accelerated to the same energy are caused to join into a confluence in the same direction by a magnet for joining electrons and positrons, and positronium molecules or beam-shaped para-positroniums of the same phase co...	04/01/1997
5586137	Compact high efficiency electrical power source A compact fission reactor generates a flux of fission fragments, fission neutrons, and gamma-ray photons. The flux excites a noble element converter medium which produces light. Optical means are provided for focusing the light onto an array of photovolta...	12/17/1996
5561679	Radioluminescent semiconductor light source A radioluminescent light source comprising a crystalline III-V or II-VI semiconductor or a group IV quantum semiconductor and a radioactive element adapted to cause the semiconductor to produce light is disclosed. The radioactive element, such as tritium,...	10/01/1996
5410558	Variable short period electron beam wiggler for free electron lasers The free electron laser wiggler has therein a device for generating a variable short period wiggler field. A Type II superconducting material is formed into a field modifying means having a channel therein through which a beam of free electrons travels. T...	04/25/1995
5114661	Solid state laser media driven by remote nuclear powered fluorescence An apparatus is provided for driving a solid state laser by a nuclear powered fluorescence source which is located remote from the fluorescence source. A nuclear reaction produced in a reaction chamber generates fluorescence or photons. The photons are co...	05/19/1992
5084888	Laser medium for use in a composite slab type laser A laser medium for use in a composite slab type laser, wherein laser active layers are divided in the longitudinal direction of the laser medium by removing at least a part of a region, which is deviated from a zigzag path and a laser beam to be extracted...	01/28/1992
5084889	Laser medium for use in a slab laser A laser medium for use in a slab laser having a light absorbing member provided in a region, wich is deviated from a zigzag path to be followed by a laser beam to be extracted therefrom and thus the laser beam does not pass through. Thereby, parasitic osc...	01/28/1992
4939742	Neutron-driven gamma-ray laser A lasing cylinder emits laser radiation at a gamma-ray wavelength of 0.87 Å when subjected to an intense neutron flux of about 400 eV neutrons. A 250 Å thick layer of Be is provided between two layers of 100 Å thick layer of 57 Co and these ...	07/03/1990
4933950	Generating method for free positronium radiation light and apparatus used in this method An electron beam and a positron beam are separately accelerated and stored to a predetermined energy, both beams are joined (in a predetermined direction), and a free positronium beam is generated. As a result, on the positronium beam axis, a monochromati...	06/12/1990
4926435	Radioactive light sources A radioactive light source consists of a vacuum tight envelope filled with a mixture of a radioactive gas such as tritium with one or more other gases which luminesce when excited by the emission from the radioactive gas without the aid or requirement of ...	05/15/1990
4926436	Accelerator for coherent bosons Accelerator for coherent bosons. Helium clusters are formed by expansion of helium gas through a nozzle into a low pressure chamber. The clusters contain coherent helium particles. Laser light is shone onto the clusters to cause the coherent helium atoms ...	05/15/1990
4870653	Traveling-wave laser-produced-plasma energy source for photoionization laser pumping and lasers incorporating said A traveling-wave, laser-produced-plasma, energy source used to obtain single-pass gain saturation of a photoionization pumped laser. A cylindrical lens is used to focus a pump laser beam to a long line on a target. Grooves are cut in the target to present...	09/26/1989
4858238	Stimulated Raman scattering enhancer Normal stimulated Raman scattering (SRS) is done in a gas cell with pump and Stokes seed input beams. The pump photons excite gas molecules in the gas cell from their ground state and the Stokes seed photons stimulate the de-excitation of the molecules ba...	08/15/1989
4835787	Fusion pumped light source Apparatus is provided for generating energy in the form of light radiation. A fusion reactor is provided for generating a long, or continuous, pulse of high-energy neutrons. The neutron flux is coupled directly with the lasing medium. The lasing medium in...	05/30/1989
4800566	Fusion pumped laser Apparatus is provided for generating energy in the form of laser radiation. A tokamak fusion reactor is provided for generating a long, or continuous, pulse of high-energy neutrons. The tokamak design provides a temperature and a magnetic field which is e...	01/24/1989
4746484	Fusion reactor pumped laser A nuclear pumped laser capable of producing long pulses of very high power laser radiation is provided. A toroidal fusion reactor provides energetic neutrons which are slowed down by a moderator. The moderated neutrons are converted to energetic particles...	05/24/1988
4710939	X-ray frequency down converter A pre-excited excimer laser is formed in a thin flat package. Input X-ray photons which are modulated by passing through a body to be analyzed raise the pre-excited excimer gas molecules to a lasing energy level and the coherent radiation produced is meas...	12/01/1987
4592064	Inner-shell d-electron photoionization apparatus Described is a high gain, soft X-ray pumped, inner-shell, photoionization amplifier/laser in Cd or Zn vapors. The soft X-ray photoionization, generated by a laser-produced plasma or other high intensity X-ray source, preferentially removes inner-shell d-e...	05/27/1986
4466101	Relativistic electron synchrotron laser oscillator or amplifier A technique for constructing electromagnetic oscillators and amplifiers producing coherent radiation tunable from the microwave through the x-ray spectral regions. The resulting class of devices posses such novel and desirable features as broad band or na...	08/14/1984
4446557	Mode-locked semiconductor laser with tunable external cavity A mode-locked gallium arsenide crystal laser has a cavity length equal to one-half its principal noise resonance wavelength and an electrode overlying a portion of the crystal, the remaining portion being a self-aligned region diffused or implanted with i...	05/01/1984
4414671	Collision laser Electromagnetic radiation (10) is provided in a gas mixture (12) including helium in the X(1) state and nitrogen in the Y(1) state. The helium is pumped to excite a high population density of its atoms from the X(1) state to the X(2) state; and photons (1...	11/08/1983
4398294	High power nuclear photon pumped laser A device for producing high power coherent radiation by using nuclear energy as the energy source to cause photons to be produced from a photon producing gas and in turn utilizing the photons to pump a laser gas to create a population inversion necessary ...	08/09/1983
4300106	Large volume multiple-path nuclear pumped laser A large volume multiple-path nuclear pumper laser which has improved characteristics over previous cylindrical nuclear pumped laser systems. Large volumes of gas are excited by using internal high reflectance mirrors that are arranged so that the optical ...	11/10/1981
4276520	Portable laser device A device for producing a laser beam or discharge. The device is constructed to be portable having a pistol grip. The laser beam is generated in the body or barrel of the device. A neodymium (Nd:YAG) rod or similar material is within a xenon flash tube to ...	06/30/1981

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Class 372/73 - High-energy particles