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"That the automobile has practically reached the limit of its development is suggested by the fact that during the past year no improvements of a radical nature have been introduced."
Scientific American ; Jan. 2 edition, 1909
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| Number | Title | Issue Date |
| 7590161 | Electron beam pumped semiconductor laser Electron-beam-pumped semiconductor ultra-violet optical sources (ESUVOSs) are disclosed that use ballistic electron pumped wide bandgap semiconductor materials. The sources may produce incoherent radiation and take the form of electron-beam-pumped light emitting tri... | 09/15/2009 |
| 7580440 | System for emission of electromagnetic radiation, and method for making A device for emission of electromagnetic radiation comprises a source of atomic particles and a collector disposed to receive atomic particles from the source. The collector comprises an emission medium, the medium comprising a crystal having a spatial dimension in ... | 08/25/2009 |
| 7317171 | Method and apparatus for generating an electric arc A method and apparatus for reducing the gap resistance between two electrodes, such as the electrodes used fusion splicing one optical fiber to another, by injecting negative ions into the gas or gasses that are located between the electrodes. As a result, the volta... | 01/08/2008 |
| 7305019 | Excimer laser with electron emitters An apparatus, system, and method for an excimer laser having lasing gas and electron emitters emitting electrons upon the application of an emitting voltage is described herein. ... | 12/04/2007 |
| 7301268 | Field emission display having emitter arrangement structure capable of enhancing electron emission characteristics A field emission display includes a first substrate, at least one gate electrode formed on the first substrate, cathode electrodes formed on the first substrate, an insulation layer formed between the at least one gate electrode and the cathode electrodes, emitters ... | 11/27/2007 |
| 7232526 | Method and apparatus for controlling material removal from semiconductor substrate using induced current endpointing A method and apparatus for controlling the removal of material from a semiconductor substrate in an integrated circuit fabrication process is disclosed. The method and apparatus utilize a light source or charged particle beam (electron or ion beam) to induce a curre... | 06/19/2007 |
| 7215697 | Matched impedance controlled avalanche driver Controlled avalanche driver circuits and apparatuses for gas lasers. One embodiment typically delivers short, rapid, high voltage ionizing pulses in combination with an electric field whose magnitude is too low to sustain a normal glow discharge. The plasma is typic... | 05/08/2007 |
| 7192201 | Optical transmitting module having a de-coupling inductor therein The present invention provides an optical transmitting module or optical transmitting sub-assembly in which an inductor for de-coupling the bias circuit of the semiconductor laser diode is built. The laser diode is mounted on the side surface of the block provided o... | 03/20/2007 |
| 7126975 | Electron-beam excitation laser An electron-beam excitation laser has a laser structure with a light emitter and reflectors on one hand and an electron source on the other hand, wherein at least part of the light emitter or reflectors has a multidimensional photonic crystal structure. An electron-... | 10/24/2006 |
| 7105808 | Plasma ion mobility spectrometer Ion mobility spectrometer. The spectrometer includes an enclosure for receiving a sample therewithin and an electron beam window admits an electron beam into the enclosure to ionize the sample in an ionization region. A shutter grid is spaced apart from the ionizati... | 09/12/2006 |
| 7038364 | Processor and method for processing This invention provides a processing device allowing a plurality of types of processing including electron beam processing to be carried out on a substance disposed in a processing chamber, and processing methods that use such a processing device and allow prescribe... | 05/02/2006 |
| 7006541 | Absolute wavelength calibration of lithography laser using multiple element or tandem see through hollow cathode lamp A tunable laser system includes a gain medium and an optical resonator for generating a laser beam, and a spectral narrowing and tuning unit within the resonator. A detection and control unit controls a relative wavelength of the laser system. A wavelength calibrati... | 02/28/2006 |
| 6970483 | Method and a device for realizing both high extraction efficiency of laser light from electron beams and femto-second ultra-short in free-electron lasers pulses A method for realizing both high extraction efficiency of laser light from electron beams and femto-second ultra-short pulses in a free-electron laser, wherein the peak current of electron pulses from a superconducting or normal conducting linear accelerator serving... | 11/29/2005 |
| 6965625 | Apparatuses and methods for generating coherent electromagnetic laser radiation The present disclosure is directed to laser apparatuses for generating coherent electromagnetic laser radiation having an electron beam generator, a diffraction grating element oriented such that a beam of electrons from the electron beam generator is directed over ... | 11/15/2005 |
| 6924920 | Method of modulation and electron modulator for optical communication and data transmission The present invention provides a method for modulating light by a driven particle beam is disclosed. An optical beam is being sent to metal-dielectric structure so that the optical field partially transforms into a delayed electromagnetic wave, in a preferred embodi... | 08/02/2005 |
| 6831933 | Modular approach to the next generation, short wavelength, laser-like light sources A system and method for implementing a next generation laser-like light source with Free Electron Lasers (FELs) are provided whereby the construction of a Free Electron Laser (FEL) is customized through the use of individual modules having specified characteristics.... | 12/14/2004 |
| 6735234 | Passively mode-locked optically pumped semiconductor external-cavity surface-emitting laser A passively mode-locked optically pumped semiconductor vertical-external-cavity surface-emitting laser (OPS-EXSEL) is disclosed. The laser is mode locked by a semiconductor saturable absorber mirror (SESAM) which forms part of an external cavity. Both the beam-quali... | 05/11/2004 |
| 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 |
| 6465965 | Method and system for energy conversion using a screened-free-electron source A method and device for providing power to a load are disclosed. A beam of free electrons is directed from a free-electron source, such as an electron gun, into an enclosing conductive surface. The free-electron source includes a cathode, which is maintai... | 10/15/2002 |
| 6323694 | Differential comparator with a programmable voltage offset for use in an automatic tester A test circuit operable to examine both differential outputs and single outputs of a device under test (DUT), the circuit comprises a first circuit having as inputs a first output of the DUT and a first set of independent reference voltages, and an output... | 11/27/2001 |
| 6301041 | Unidirectional optical amplifier Within a vacuum vessel, there are arranged an electron emitting part emitting an electron beam in a first direction, and an optical amplifying part amplifying incident light with the help of energy of the electron beam. The optical amplifying part include... | 10/09/2001 |
| 6282222 | Electron beam irradiation of gases and light source using the same Excimers are generated by directing an electron beam at about 5 KeV to about 40 KeV into an excimer forming gas such as He, Ne, Ar, Kr, and Xe or mixtures of these with other gases through a ceramic foil such as SiNx. Vacuum ultraviolet (VUV) l... | 08/28/2001 |
| 6219175 | Unidirectional optical amplifier A unidirectional optical amplifier comprising an optical dielectric waveguide having a high refraction index for leading light from a light input terminal to a light output terminal and a straight electron beam transit section extended in an electron beam... | 04/17/2001 |
| 6137811 | System for conditioning an electron beam for improved free-electron laser operation A system is disclosed for developing a conditioned electron beam of high quality for an exemplary application to a free-electron source of coherent radiation. The system comprises: a source for producing an electron beam of relatively high energy, a micro... | 10/24/2000 |
| 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 |
| 6052401 | Electron beam irradiation of gases and light source using the same Excimers are generated by directing an electron beam at about 5 KeV to about 40 KeV into an excimer forming gas such as He, Ne, Ar, Kr, and Xe or mixtures of these with other gases through a ceramic foil such as SiNx. Vacuum ultraviolet (VUV) l... | 04/18/2000 |
| 6005882 | Electron pump An electron pump organized along the lines of a laser device has an interior chamber with a quartz crystal axially disposed around a metallic rod. The rod and crystal are surrounded by flash lamps, which stimulate the electrons therein to produce an elect... | 12/21/1999 |
| 5933440 | Electronic-laser system for outputting radio-frequency signal and pulse laser beam synchronous with radio-frequency signal A master radio-frequency signal output from a master oscillator is input to a frequency converter. The frequency converter generates and outputs a multiplied signal having a frequency higher than that of the master radio-frequency signal by using the mast... | 08/03/1999 |
| 5807764 | Vertical cavity electron beam pumped semiconductor lasers and methods An electron beam pumped semiconductor laser includes a semiconductor laser screen and an electron beam source adjacent the semiconductor laser screen. The semiconductor laser screen comprises a transparent single crystal substrate, an electron beam respon... | 09/15/1998 |
| 5790585 | Grating coupling free electron laser apparatus and method Free electron laser apparatus, for producing coherent electromagnetic radiation within a spectral range extending from millimeter to visible wavelengths, includes elements for generating an electron beam and for directing the beam to move over the surface... | 08/04/1998 |
| 5737354 | Energy exchange between a laser beam and charged particles using inverse transition 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... | 04/07/1998 |
| 5687185 | Laser cathode-ray tube A laser cathode-ray tube having an electron beam source, a means for its control, and a laser target containing a supporting substrate, a cavity resonator formed by two mirrors and multilayer semiconductor structure having active and passive strained laye... | 11/11/1997 |
| 5677923 | Vertical cavity electron beam pumped semiconductor lasers and methods An electron beam pumped semiconductor laser includes a semiconductor laser screen and an electron beam source adjacent the semiconductor laser screen. The semiconductor laser screen comprises a transparent single crystal substrate, an electron beam respon... | 10/14/1997 |
| 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 |
| 5459604 | Coherent switch of currents in semiconductors A method and apparatus is provided for propagating photoelectrons in a semiconductor material and for controlling the direction of photoelectrons produced in a semiconductor material. A selected region of the semiconductor material is irradiated with two ... | 10/17/1995 |
| 5440579 | Compact electron gun having a microdot electron source and a semiconductor laser using said gun for electronic pumping Compact electron gun having a microdot electron source and a semiconductor laser using said gun for electronic pumping. A compact electron gun is provided having a microdot electron emitting source (2), an anode (8) spaced from the microdots, means (16) f... | 08/08/1995 |
| 5422907 | Pumped solid-state lasers comprising doped nanocrystal phosphors An optically-pumped or electron-beam-pumped solid-state laser employing as the phosphor material doped nanocrystal particles which as a result of quantum confinement can be caused to exhibit discrete levels in its conduction band that can overlap with the... | 06/06/1995 |
| 5408479 | Apparatus and method for generating high intensity electrostatic fields Apparatus and method for generating high intensity electrostatic fields for accelerating an electron beam. At least one thin dielectric film is charged on opposite faces thereof with charges of a like polarity. A near-relativistic beam is directed at the ... | 04/18/1995 |
| 5363053 | Electrostatic accelerator and free electron beam laser using the accelerator Electrostatic accelerator includes an accelerating column (20), a high voltage terminal (18) located at one end of said accelerating column and electric charge transport means, said transport means incorporating a high frequency accelerator such as a high... | 11/08/1994 |
| 5268693 | Semiconductor film free electron laser Semiconductor film FEL uses an electron beam and a semiconducting-film-loaded, open, quasi-optical resonator to produce coherent, electromagnetic radiation at submm and far-infrared wavelengths.... | 12/07/1993 |
