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| Number | Title | Issue Date |
| 7912108 | Laser emitting material, method for making the same and use thereof A solid-state laser emitting material for use in conjunction with a light source includes a polymer matrix functioning as host materials, containing laser dye of rhodamine 590 or rhodamine 610 as gain materials and nano-submicron particles as scatters therein. The l... | 03/22/2011 |
| 7889774 | Organic polariton laser The present invention relates to organic lasers. More specifically, the present invention is directed to an organic laser that provides a self-stimulated source of coherent radiation originating from organic microcavity polaritons. The organic polariton laser of the... | 02/15/2011 |
| 7817697 | Laser diode pumped solid-state dye laser and method for operating same A method for generating a laser output signal includes the steps of: generating an optical pump signal that is a sequence optical pulses each having a duration of about nτf, where τf represents a flourescence lifetime of a laser dye and 3≦n... | 10/19/2010 |
| 7817698 | Mechanically tunable elastomeric optofluidic distributed feedback dye lasers The invention relates to a microfluidic dye laser including a pump light source configured to provide light having a pump light wavelength. The microfluidic dye laser also includes an elastomer substantially optically transparent at the pump light wavelength and at ... | 10/19/2010 |
| 7792175 | Triplet quencher for use in lasers There are disclosed compounds for assisting triplet absorption in a laser, such as a pulsed-dye laser, the compounds comprising at least one molecule chosen from nitroxides and nitrones. In one embodiment, the disclosed compounds may be mixed with the dye of a dye l... | 09/07/2010 |
| 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 |
| 7372880 | Optical pulse lasers The present invention provides pulsed lasers which employ carbon nanotubes, particularly layers of carbon nanotubes, as saturable absorbers, mode lockers or for Q-switching elements. The present invention also provides methods and materials for mode-locking and Q-sw... | 05/13/2008 |
| 7342951 | Laser diode with a frequency converter A semiconductor laser diode that internally converts one or more short wavelength “pump” beams to an output beam at a longer wavelength using nonlinear optical frequency conversion in the semiconductor. Modal phase matching of the pump and output beams in a semi... | 03/11/2008 |
| 7316890 | Indolestyryl compound for use in recording media and method for fabrication thereof Indolestyryl compounds and use thereof for a high density recording media and method for fabricating the same. The indolestyryl compounds exhibit strong absorbance in the visible light region (400˜700 nm) of the spectrum, resistance to heat and light, high light se... | 01/08/2008 |
| 7300709 | Organic element for electroluminescent devices An electroluminescent device comprises a light-emitting layer containing a host and a light-emitting material wherein the light-emitting material comprises a boron complex containing boron complexed by two ring nitrogens of a deprotonated bis(aromatic)amine or bis(a... | 11/27/2007 |
| 7253871 | Efficient room-temperature source of polarized single photons An efficient technique for producing deterministically polarized single photons uses liquid-crystal hosts of either monomeric or oligomeric/polymeric form to preferentially align the single emitters for maximum excitation efficiency. Deterministic molecular alignmen... | 08/07/2007 |
| 7239656 | Closed-loop purging system for laser A method of minimizing contamination of optical components of a laser resonator is disclosed. The resonator components are located in an enclosure, which may contain contaminants including water vapor and organic favor released by the optical components, mounts of t... | 07/03/2007 |
| 7235819 | Semiconductor device having group III nitride buffer layer and growth layers An epitaxial growth system comprises a housing around an epitaxial growth chamber. A substrate support is located within the growth chamber. A gallium source introduces gallium into the growth chamber and directs the gallium towards the substrate. An activated nitro... | 06/26/2007 |
| 7220732 | Compounds useful as photodynamic therapeutic agents The present invention relates to compounds of the formula or a salt, metal complex or hydrate or other solvate thereof, wherein: M is a chelating agent; R1, R2, R | 05/22/2007 |
| 7197208 | Wavelength tunable light sources and methods of operating the same Wavelength tunable light sources and methods of operating the same are described. In one aspect, a wavelength tunable light source includes a resonant light path, an optical gain medium, an optical grating, a first acousto-optic deflector, and a second acousto-optic... | 03/27/2007 |
| 7190706 | Soft metal heat transfer for transceivers A laser package includes a submount, a laser die mounted on the submount, a lid mounted on the submount over the laser die, and a soft metal disposed between the laser die and the lid, wherein the soft metal conducts heat between the laser die and the lid. The soft ... | 03/13/2007 |
| 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 |
| 7113533 | Amplifying medium for solid-state dye lasers The present invention relates to an amplifying medium for solid-state dye lasers and to a solid-state dye laser provided with an amplifying medium of this type. The amplifying medium according to the invention comprises an essentially solid active medium which conta... | 09/26/2006 |
| 7097354 | Method of determining the temperature in a system comprising a molecular heater fraction and a molecular thermometer fraction The present invention is related to a method of determining the temperature in a system, said system comprising a molecular heater fraction and a molecular thermometer fraction, and to an integrated system for temperature determination and temporally and spatially r... | 08/29/2006 |
| 7088757 | Use of spiro compounds as laser dyes Use of spiro compounds of formula (I), where K1 and K2 are, independently of one another, conjugated systems, as a laser dye. ... | 08/08/2006 |
| 7084565 | Assembly of organic electroluminescence display device An organic electroluminescence (EL) display device assembly includes a substrate, an organic EL portion, an optical loss prevention layer, and a fine space layer. The organic EL portion has a first electrode layer, an organic luminescent layer, and a second electrod... | 08/01/2006 |
| 7065115 | External cavity organic laser A thin-film organic laser, that includes: a substrate; a bottom mirror provided on the substrate; at least one active region deposited on the bottom mirror, wherein the at least one active region includes organic gain material; an external mirror provided at a prede... | 06/20/2006 |
| 7039077 | Optical wavelength converting apparatus, and optical wavelength converting method An optical wavelength converting apparatus includes a first semiconductor laser, a second semiconductor laser, and a wavelength converting element for converting first and second laser light from the first and second semiconductor lasers to sum frequency light. In t... | 05/02/2006 |
| 7009679 | Chiral boardband tuning apparatus and method A chiral structure having an expanded adjustable reflection band to provide broadband tunability is provided. In the preferred embodiment, the chiral structure is implemented as a chiral fiber structure and comprises two or more sequential chiral fiber elements of d... | 03/07/2006 |
| 6996146 | Providing an improved organic vertical cavity laser array device A method of making an organic vertical cavity laser array device includes providing a substrate and a bottom dielectric stack reflective to light over a predetermined range of wavelengths and being disposed over the substrate; forming an etched region in the top sur... | 02/07/2006 |
| 6963594 | Organic laser cavity device having incoherent light as a pumping source An organic laser cavity device, that includes: a first dielectric stack for receiving and transmitting pumped beam light and being reflective to laser light over a predetermined range of wavelengths and having a substantially low threshold for optical excitation; an... | 11/08/2005 |
| 6959024 | Laser Tuning by spectrally dependent spatial filtering A laser tuning mechanism which embodies “spectrally dependent spatial filtering” (SDSF) and contemplates two key elements of the tuning mechanism. The first element of the SDSF tuning mechanism is a spectrally dependent beam distortion (i.e. alteration of the am... | 10/25/2005 |
| 6953703 | Method of making a semiconductor device with exposure of sapphire substrate to activated nitrogen An epitaxial growth system comprises a housing around an epitaxial growth chamber. A substrate support is located within the growth chamber. A gallium source introduces gallium into the growth chamber and directs the gallium towards the substrate. An activated nitro... | 10/11/2005 |
| 6950005 | Adjustable coilform for variable inductance Methods and apparatus are disclosed for a tunable inductor. A coil of electrically conducting material is wrapped around a coilform, preferably generally cylindrical in shape. The coilform is constructed having a threaded portion of screw-like ridges with troughs be... | 09/27/2005 |
| 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 |
| 6876684 | Organic vertical cavity lasing device having organic active region An organic vertical cavity laser light producing device includes a bottom dielectric stack reflective to light over a predetermined range of wavelengths; an organic active region for producing laser light, and having an organic active region including emissive mater... | 04/05/2005 |
| 6845114 | Organic laser that is attachable to an external pump beam light source A vertical cavity organic laser device, that includes: an organic laser cavity including: a bottom dielectric stack for receiving and transmitting pump beam light and being reflective to laser light over a predetermined range of wavelengths; an organic active region... | 01/18/2005 |
| 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 |
| 6798813 | Closed-loop purging system for laser A method of minimizing contamination of optical components of a laser resonator is disclosed. The resonator components are located in an enclosure, which may contain contaminants including water vapor and organic favor released by the optical components, mounts of t... | 09/28/2004 |
| 6795464 | Temperature control of laser action in scattering media A random laser system includes Critical Solution Temperature (CST) material, either a Lower CST (LCST) or an Upper CST (UCST) material, in combination with an optical gain medium, such as a laser dye. A laser-like emission is observed in response to optical pumping ... | 09/21/2004 |
| 6631147 | Organic semiconductor laser device An organic semiconductor laser device is composed of a positive electrode layer, an electron hole-transporting layer, a light-emitting layer containing an organic dye and having an open end, an electron-transporting layer, and a negative electrode layer i... | 10/07/2003 |
| 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 |
| 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 |
| 6562424 | Photochemical sensors and method for the production thereof The invention provides an indicator dye nanoporous photochemical sensor composite glass film, comprising a multiplicity of polyacrylate chains intertwined with a multiplicity of cross-linked networks of silica and doped with an indicator dye, wherein the ... | 05/13/2003 |
| 6552301 | Burst-ultrafast laser machining method A method of laser processing or laser modification of materials. The combination of ultrafast laser pulses and high-repetition rate (>100 kHz) bursts (or continuous operation) defines a new and unexpected regime for material processing. The high repetitio... | 04/22/2003 |
