| Patent Number |
Title Of Patent |
Date Issued |
| 6226307 |
Magnetic switch controlled power supply isolator and thyristor commutating circuit |
May 1, 2001 |
| An isolation means used in conjunction with supplying energy to a laser, which isolates a power supply from the pulser circuit, and commutates a switch which activates the discharge of energy to the laser. |
| 6219368 |
Beam delivery system for molecular fluorine (F2) laser |
April 17, 2001 |
| A method and apparatus are provided for delivering a laser beam from a laser, such as an F.sub.2 laser, to a target through a sealed enclosure. The enclosure is evacuated and back-filled with an inert gas repeatedly for a number of times sufficient to adequately deplete any air, water, |
| 6198761 |
Coaxial laser pulser with solid dielectrics |
March 6, 2001 |
| A pulser with solid dielectrics including a pulse compressor and pulse transformer apparatus, which is able to produce short bursts of electrical energy at high voltage utilizing a coaxial structure. Both the transformer and the compressor utilize ferromagnetic cores having an inner and |
| 6172329 |
Ablated laser feature shape reproduction control |
January 9, 2001 |
| This invention concerns a process useful for increasing the accuracy of the shape of a laser ablated feature formed on a substrate, especially where the substrate is a polymeric article. The process includes irradiating the polymeric article with laser light that has passed through a ret |
| 6160832 |
Method and apparatus for wavelength calibration |
December 12, 2000 |
| A wavelength calibration system determines an absolute wavelength of a narrowed spectral emission band of an excimer or molecular laser system. The system includes a module including an element which optically interacts with a component of an output beam of the laser within the tunab |
| 6160831 |
Wavelength calibration tool for narrow band excimer lasers |
December 12, 2000 |
| An excimer laser system having a precisely calibratable absolute emission wavelength is provided wherein at least one source of reference light is used. The reference light may be a laser such as a HeNe laser or a cathode lamp such as a hollow Pt, As, C, or Fe cathode lamp. The reference |
| 6157662 |
F.sub.2 (157nm) laser employing neon as the buffer gas |
December 5, 2000 |
| An F.sub.2 -laser has a discharge chamber containing a laser gas mixture including fluorine as a laser active component and neon as a buffer gas. The gas mixture is surrounded by a resonator and supplied with a pulsed discharge by a pair of electrodes connected to a power supply circuit. |
| 6081542 |
Optically pumped laser with multi-facet gain medium |
June 27, 2000 |
| A solid state laser system that includes a resonant cavity, a gain medium disposed the resonant cavity and a plurality of optical pump sources. The resonant cavity is defined by an output coupler, a high reflector, and a plurality of retro-reflecting optical elements. The gain medium has |
| 6002697 |
Diode pumped laser with frequency conversion into UV and DUV range |
December 14, 1999 |
| A solid state laser is provided including a rare earth-doped YAG, YLF, YVO, GSGG, YALO or GdVO oscillator crystal, at least one laser diode pumping source, a Q-switch short pulse generator, a frequency doubling stage and frequency quadrupling or quintupling stages. The frequency quadrupl |
| 5676866 |
Apparatus for laser machining with a plurality of beams |
October 14, 1997 |
| An apparatus for laser machining by creating a plurality of discrete and separate beams which are sent to a deflecting device including a support and a plurality of individual elements that act independently and are individually controlled to machine different points on the workpiece |
| 4534034 |
Discharge-pumped laser |
August 6, 1985 |
| A discharge-pumped laser with a discharge tube (1) that contains a mixture (2) of gases, that has gas inlets (4) in the vicinity of its windows (3), that has a gas outlet (7), and that is connected by lines (10, 11) and by a circulating pump (8) to a purification device that is an electr |
