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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...
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...
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...
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...
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...
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...
7088757 Use of spiro compounds as laser dyes  
Use of spiro compounds of formula (I), where K 1 and K 2 are, independently of one another, conjugated systems, as a laser dye.
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
6542524 Multiwavelength laser for illumination of photo-dynamic therapy drugs  
An apparatus and method are provided for converting a pump laser beam having a first wavelength to an output beam of a second wavelength. The wavelength conversion device includes a solid medium...
6539041 Compact solid state dye laser  
A novel apparatus is described for a compact solid state dye laser that includes a solid state laser gain element for generating laser pump energy, a passive Q-switch for generating high intensity...
6473444 Assembly device for a laser head  
A laser bar assembly module having a metal base plate ( 20 ) to support a diode or a laser diodes strip ( 22 ), this base plate being provided with a groove or area ( 21 ) holding the diode or...
6351482 Variable reflectivity mirror for increasing available output power of a laser  
Output for a laser is greatly increased by altering the transmitivity of a superconductor layer which serves as one of the mirrors of the laser cavity. The superconductor layer is switched between...
6330262 Organic semiconductor lasers  
Lasers comprising a substrate and a layer of organic material over the substrate. The organic material includes host and dopant materials that result in the laser emission of a desired color when...
6246710 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...
6141367 Solid state dye laser  
A solid state dye laser is adapted for use in a solid state dye laser assembly having a pump adapted to emit light at a first frequency and intensity. The solid state dye laser includes an...
6111902 Organic semiconductor laser  
An optically-pumped laser having a small-molecule thin organic film of DCM doped Alq 3 . Carrier transport properties of the small-molecule organic materials, combined with a low lasing threshold...
6101207 Dye laser  
A dye laser for generating laser pulses of long duration comprising an optic resonator which comprises an elongated dye cell, which contains light gain medium that can be excited to population...
6088380 Method and apparatus for intracavity pixelated lasing projection  
A high efficiency, narrow spectral linewidth lasing pixel device that implements a low-voltage spatially patterned variable loss element placed inside an optically pumped high-gain laser cavity is...
5966393 Hybrid light-emitting sources for efficient and cost effective white lighting and for full-color applications  
Hybrid inorganic light emitting device/luminescent polymer light-emitting sources for efficient and cost effective white lighting and for full-color applications and their manufacture are...
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...
5949803 Method for the exposure of laser sensitive materials without the effects of intermittency  
A method for exposing light sensitive material to provide exposure patches representing the material sensitivity and which minimizes the effects of intermittency of the light sensitive material,...
5881083 Conjugated polymers as materials for solid state laser  
Solid state lasers based upon conjugated polymers are disclosed. A conjugated polymer useful in the practice of this invention is a conjugated polymer which has a ground state and an excited state...
5869689 Stains for acidic organelles  
Dipyrrometheneboron difluoride dyes possessing a covalently attached basic amine moiety are described that have utility for staining acidic organelles. Samples comprising isolated acidic...
5844932 Microlaser cavity and externally controlled, passive switching, solid pulsed microlaser  
Microlaser cavity and externally controlled, passive switching, pulses solid microlaser including a saturable absorber 46 and a device (60, 62) for introducing a beam 56 into the microlaser cavity...
5832010 Switched monolithic microlaser and intracavity nonlinear material  
A microlaser cavity to a microlaser incorporating an active solid medium (38) and means (44) for switching the cavity, whilst also having, within said cavity, at least one element (46) of an...
5783319 Waveguide tunable lasers and processes for the production thereof  
A composite glass film waveguide tunable laser is described, wherein the film is about 10-80 wt. % silica, 20-90 wt. % metal oxide, and 0-90 wt. % polyacrylate, and the film is doped with a tunable...
5701323 Dye lasers and organic inclusions for same  
Disclosed are solid state lasers and laser gain media which include lasing crystals having crystalline lattice incorporating lasable organic dye molecules in regular positions. The monolithic...
5668824 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...
5610932 Solid state dye laser host  
A solid state dye laser incorporating a polyacrylamide gelatin solid host is doped with a laser dye such as rhodamine 6G and pyrromethene 556. The host is aligned within a lasing cavity and is...
5598426 Method and dye laser apparatus for producing long pulses of laser radiation  
A flashlamp-excited dye laser generates a pulsed output beam having a long pulse duration. The laser includes a pulse forming circuit which generates an excitation pulse having an amplitude which...
5487080 Principle and applications of multiphoton pumped upconverted lasers  
The principle and some applications of multiphoton pumped upconverted lasers (MU-LASER) in complex molecules like said material is demonstrated. Weak linear absorption and strong multiphoton...
5451663 Long wavelength chemically reactive dipyrrometheneboron difluoride dyes and conjugates  
This invention relates to derivatives of dipyrrometheneboron difluoride fluorescent dyes that have an absorption maximum at wavelengths longer than about 525 nm, and are chemically reactive with...
5420881 Dye storage and introduction system for changing the frequency of a dye laser  
A dye laser having a changeable output frequency includes a system for storing, selecting and introducing a dye into a liquid lasing medium. Dyes are contained in individual glass ampules arranged...
5343488 Installation for the formation of a laser beam suitable for isotope separation  
An installation for the formation of a laser beam suitable for isotope separation. According to the present invention, a pumping means of tunable chains are constituted by a plurality of solid...
5329540 Silicate gel dye laser  
A dye laser comprising a solid styate laser medium and a pumping energy sce, the laser medium comprising a lasing concentration of a water or alcohol soluble organic dye which is incorporated into...
5323413 Apparatus for the laser dissociation of molecules  
An apparatus for dissociation of gas molecules which absorb light comprising a resonance optical cavity, a nozzle for introducing gas molecules into the resonance optical cavity in contact with the...
5307363 Organic optical gain device and method of exciting the same  
Disclosed is an optical gain device comprising an active layer having a film thickness of 1 μm or less, 10% or more by weight of fluorescent organic molecules such as stilbene dye, and a quantum...
5307358 Wavelength dispersive gain element for a tunable laser  
A tunable laser is described in which the gain element is fabricated to produce wavelength dispersion within the laser resonator cavity. Specifically, the laser gain element has Brewster angled...
5274113 Long wavelength chemically reactive dipyrrometheneboron difluoride dyes and conjugates  
This invention relates to derivatives of dipyrrometheneboron difluoride fluorescent dyes that have an absorption maximum at wavelengths longer than about 525 nm, and are chemically reactive with...
Matches 1 - 50 out of 220 1 2 3 4 5 >