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| Number | Title | Issue Date |
| 7826510 | Laser oscillation elements A laser oscillation element 1 according to the invention comprises a cholesteric liquid crystal layer 2 containing cholesteric liquid crystals, a cholesteric liquid crystal layer 3 containing cholesteric liquid crystals facing the cholesteric li... | 11/02/2010 |
| 7778301 | Cadmium sulfide quantum dot lasing in room temperature liquid solution Disclosed is a lasing complex comprising a room temperature solution containing cadmium sulfide (CdS) quantum dots. Optical gain has been observed in CdS nanocrystal quantum dots in strong confinement regime in toluene solution at room temperature using femtosecond ... | 08/17/2010 |
| 7443900 | Laser gain medium for solid state dye lasers The present invention relates to a laser gain medium comprising at least one active species adapted to be stimulated to emit laser light within a predetermined wavelength range and optical feedback means defining a resonator for said laser light. The feedback means ... | 10/28/2008 |
| 7242706 | Membrane singlet delta oxygen generator and process A method and apparatus for producing molecular oxygen in the excited singlet delta oxygen electronic state for use as an excited species reactant in a chemical laser. Flowtubes defined by permeable membranes are used to mix the gas and liquid phase reactants to gene... | 07/10/2007 |
| 7212558 | Liquid heat capacity lasers The heat capacity laser concept is extended to systems in which the heat capacity lasing media is a liquid. The laser active liquid is circulated from a reservoir (where the bulk of the media and hence waste heat resides) through a channel so configured for both opt... | 05/01/2007 |
| 7187444 | Measuring method and apparatus using attenuation in total internal reflection In a measuring method utilizing the phenomenon of attenuation in total internal reflection in which a light beam is caused to enter a dielectric block provided with a film layer to be brought into contact with a sample so that total internal reflection conditions ar... | 03/06/2007 |
| 7154931 | Laser with Brayton cycle outlet pump A chemical oxygen-iodine laser (COIL) comprises an oxygen generator and a nozzle for accelerating generated oxygen to a high or supersonic velocity. A laser cavity is coupled to the nozzle, wherein the accelerated fluid, with injected iodine, is employed as a laser ... | 12/26/2006 |
| 7142280 | Extended chiral defect structure apparatus and method A chiral structure having an advantageous extended chiral defect that provides an enhanced energy distribution characteristic therein. This is accomplished by configuring a central portion of the chiral structure with a pitch different from the rest of the structure... | 11/28/2006 |
| 7060243 | Tellurium-containing nanocrystalline materials Tellurium-containing nanocrystallites are produced by injection of a precursor into a hot coordinating solvent, followed by controlled growth and annealing. Nanocrystallites may include CdTe, ZnTe, MgTe, HgTe, or alloys thereof. The nanocrystallites can photolumines... | 06/13/2006 |
| 6932945 | Adsorbent based gas delivery system with integrated purifier An adsorbent based gas delivery system is provided which includes a storage and dispensing vessel having a gas outlet conduit and an interior section containing a solid-phase physical sorbent medium having physically sorptive affinity for a gas with the sorbent medi... | 08/23/2005 |
| 6931046 | High power laser having a trivalent liquid host A laser having a lasing chamber and a semiconductor pumping device with trivalent titanium ions dissolved in a liquid host within the lasing chamber. Since the host is a liquid, it can be removed from the optical cavity when it becomes heated avoiding the inevitable... | 08/16/2005 |
| 6914926 | High average power laser gain medium with low optical distortion using a transverse flowing liquid host A high average power, low optical distortion laser gain media is based on a flowing liquid media. A diode laser pumping device with tailored irradiance excites the laser active atom, ion or molecule within the liquid media. A laser active component of the liquid med... | 07/05/2005 |
| 6839368 | Dipolar organic materials producing highly efficient laser-like emission High-efficiency laser-like emission at low thresholds in dipolar organic materials upon pulsed optical excitation, without using any external mirrors. Unusually high conversion efficiencies and low thresholds in laser-like emission have been observed in the solution... | 01/04/2005 |
| 6782029 | Dedusting unit for a laser optical element of a gas laser and method for assembling A dedusting unit for a laser optical element is provided. The dedusting unit comprises a high-voltage duct comprising a high-voltage conducting core having a first end and a second end and an insulator element disposed around the core. The first end of the core is c... | 08/24/2004 |
| 6600766 | High average power laser using a transverse flowing liquid host A laser includes an optical cavity. A diode laser pumping device is located within the optical cavity. An aprotic lasing liquid containing neodymium rare earth ions fills the optical cavity. A circulation system that provides a closed loop for circulating... | 07/29/2003 |
| 6570903 | Electric-optical singlet sigma and singlet delta oxygen generator A generator produces a flow of gaseous molecular oxygen in the singlet sigma and/or singlet delta excited electronic states. The generator is comprised of an optical source; coupling optics to transport and concentrate optical source light; a vacuum chamb... | 05/27/2003 |
| 6570900 | Method and apparatus for replenishing dye solution in a dye laser In a dye laser system, a porous bed filter is loaded with dye prior to operation of the system. With repeated firings, the dye solution is filtered by the porous bed filter to remove by-products of the laser process. Solute concentration is monitored and ... | 05/27/2003 |
| 6522679 | Gas laser discharge unit A gas laser discharge unit is provided. The discharge unit includes an elongated electrode plate having a plurality of spaced-apart holes therein and a plurality of coaxial high voltage ducts. Each duct extends through one of the holes in the electrode pl... | 02/18/2003 |
| 6438151 | Device for wavefront correction in an ultra high power laser A system for wavefront correction in an ultra high power laser. As the laser medium flows past the optical excitation source and the fluid warms its index of refraction changes creating an optical wedge. A system is provided for correcting the thermally i... | 08/20/2002 |
| 6339608 | Method for beam steering compensation in an ultra-high power liquid laser Thermally induced distortion of the optical wavefront caused by heating of the laser media by waste heat from the excitation process and absorption of laser radiation creates optical phase errors. A system generates an error signal derived from the optica... | 01/15/2002 |
| 6195377 | Embedded input logic in a high input impedance strobed CMOS differential sense amplifier The present invention provides a sense amplifier that incorporates a logic function. Specifically, that logic function is incorporated into the sense amplifier such that the propagation time of the logic function is avoided and the effective data set-up t... | 02/27/2001 |
| 6195372 | Cryogenically-cooled solid-state lasers The average power capability of a solid-state laser is increased by cooling the lasing element to a cryogenic temperature. The laser pump chamber is configured to define a flow path for circulating cryogenic fluid. The cryogenic cooling is achieved for ro... | 02/27/2001 |
| 6125131 | Laser system utilizing sorbent-based gas storage and delivery system A laser system utilizing a fluid as the excitatory medium for stimulated light emission, wherein the fluid is supplied from a sorbent-based fluid storage and dispensing system coupled in fluid-supplying relationship with the laser apparatus. The laser may... | 09/26/2000 |
| 6072820 | Chemical oxygen iodine laser gain generator system The COIL gain generator system includes a reactor for producing singlet delta oxygen and a mechanism for mixing high momentum diluent with the singlet delta oxygen and with iodine for producing a high momentum, low static temperature mixture of the single... | 06/06/2000 |
| 5959960 | Method of providing a range of conformalities for optical recording layers A method of coating an optical recording layer on a transparent grooved substrate is disclosed. The recording layer is coated from a mixture of a primary and a secondary solvent. The solvent mixture provides a wide range of conformalities for optical reco... | 09/28/1999 |
| 5946337 | Hybrid laser resonator with special line narrowing A laser system having a resonant cavity that is stable in one axis so that a wavelength selector can be used for producing a narrow line output, and is unstable in an orthogonal axis for high energy extraction efficiency and for low output beam divergence... | 08/31/1999 |
| 5822353 | Solid-state laser A solid-state laser is proposed with an emission wavelength of greater than 1.4 μm to eliminate the risk of damage to human skin and eyes. The proposed laser comprises: an active medium alloyed with Er3+ ions; an optical pumping source separa... | 10/13/1998 |
| 5658488 | Regeneration of BHP in a plant process Provided is method and apparatus for regenerating basic hydrogen peroxide (BHP) solution. Such solution is run through filters which are alternated for continuous filtration thereof, while the non-used filter is being cleaned. The filtered BHP solution is... | 08/19/1997 |
| 5434880 | Laser system A laser system comprises an optical head, a power supply and a computer for controlling the power supply. The optical head comprises a pair of mirrors and four pumping sections. Each pumping section comprises a pair of gas discharge lamps pumping an Nd:YA... | 07/18/1995 |
| 5418804 | Controlled spectrum generation laser A controlled spectrum generation laser arrangement achieving greater uniformity in the optical power spectral distribution is realized by employing a matching plate that conforms the boundary interface of the active medium with the shape of the focal surf... | 05/23/1995 |
| 5414723 | Infrared laser system An infrared laser system includes a neodymium laser for generating a pulsed laser beam at a wavelength of 1.06 micrometers and a Raman cell containing a Raman active medium. The laser beam, having sufficient peak power to cause emission of light from the ... | 05/09/1995 |
| 5359615 | Method for forming microilluminants A method for forming microilluminants, which comprises the steps of irradiating laser beam to microparticles doped with a laser pigment in a liquid medium, trapping the microparticles and causing these microparticles to emit light. According to this metho... | 10/25/1994 |
| 5321715 | Laser pulse format for penetrating an absorbing fluid A pulse format for a laser system is disclosed for maximizing the energy delivered to a target immersed in an absorbing liquid. A first pulse is generated having an energy sufficient to initiate the formation of a vapor bubble in the liquid medium adjacen... | 06/14/1994 |
| 5168389 | Dye laser amplifier including a low turbulence, stagnation-free dye flow configuration A large (high flow rate) dye laser amplifier in which a continuous replenished supply of dye is excited by a first light beam, specifically a copper vapor laser beam, in order to amplify the intensity of a second different light beam, specifically a dye b... | 12/01/1992 |
| 5153887 | Infrared laser system An infrared laser system includes a neodymium laser for generating a pulsed laser beam at a wavelength of 1.06 micrometers and a Raman cell containing a Raman active medium. The laser beam, having sufficient peak power to cause emission of light from the ... | 10/06/1992 |
| 5134625 | Condensed phase exciplex lasers The invention provides a laser medium having improved photodynamical properties. The medium includes the condensed phase, namely solid or liquid phase, of a mixture of one or more rare gases and a halogen donor. The gases are first combined and then conde... | 07/28/1992 |
| 5109387 | Dye laser system and method A dye laser system and method for operation thereof. The dye laser includes a laser cavity capable of lasing in response to an energy source, a circulation path for pumping a dye solution to the laser cavity, and a regeneration medium containing saturated... | 04/28/1992 |
| 4995699 | Electrically conductive solution comprised of charged boson ions Electrical conductor comprising a glass fibre (12) with a hollow center within which is a liquid solution (14) containing D+ or other boson ions. Coherent light from a laser (15) is directed into the solution to render the boson ions coherent, ... | 02/26/1991 |
| 4780882 | Optical resonator and laser An optical resonator comprising a substantially annular reflector disposed about and generally facing a central axis and comprising at least one annular reflecting surface, a central rotationally symmetric reflector positioned along said central axis and ... | 10/25/1988 |
| 4733400 | Safety shutdown system for a dye laser A control system for a dye laser is described, in which a pump pumps the dye from a supply vessel into a pressure vessel, in which there is an air pocket for damping vibrations, fluctuations in the pump delivery, etc. The dye passes out of the supply vess... | 03/22/1988 |
