ULTRAVIOLET LASER

A laser device is disclosed that provides at least an ultraviolet laser beam and preferably both an ultraviolet laser beam and a visible laser beam. The laser device includes a semiconductor laser device (e.g. a laser diode) to generate visible laser light which is coupled into a frequency doubling...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	BOARDMAN EDWARD ANDREW, SMEETON TIM, HOOPER STEWART, COLE ROBIN MARK
Format:	Patent
Sprache:	eng
Schlagworte:	APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL BASIC ELECTRIC ELEMENTS CHEMISTRY DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING DEVICES USING STIMULATED EMISSION ELECTRICITY FREQUENCY-CHANGING METALLURGY NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICAL LOGIC ELEMENTS OPTICS PERFORMING OPERATIONS PHYSICS PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE SPRAYING OR ATOMISING IN GENERAL TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF TRANSPORTING TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	A laser device is disclosed that provides at least an ultraviolet laser beam and preferably both an ultraviolet laser beam and a visible laser beam. The laser device includes a semiconductor laser device (e.g. a laser diode) to generate visible laser light which is coupled into a frequency doubling crystal taking the form of a single crystal thin film frequency-doubling waveguide structure. The single crystal thin film frequency-doubling waveguide converts a portion of the visible light emitted by the laser diode into ultraviolet light. Both visible and ultraviolet laser light is emitted from the waveguide. As an example, the single crystal thin film frequency-doubling frequency doubling waveguide includes a frequency doubling crystal region composed of beta-BaB2O4 (beta-BBO), a cladding region composed of materials that are transparent or nearly transparent at the wavelength of the ultraviolet laser light beam and a supporting substrate composed of any material.