Abstract:
Disclosed herein are transparent articles and methods and systems for processing transparent articles. Systems for processing transparent articles, e.g. cutting glass, may include at least one initial laser and at least one polarizing beam splitter, where the polarizing beam splitter is configured to split an initial laser beam into a plurality of laser beams, and wherein the plurality of laser beams are useful for processing transparent articles. Methods for processing transparent articles comprise creating at least one flaw in the transparent articles with a plurality of laser beams.
Abstract:
Gegenstand der vorliegenden Erfindung ist ein Verfahren zur Herstellung von Prazisionsbauteilen, insbesondere von transparenten Prazisionsbauteilen, wobei ein Substrat mittels fokussierten Laserpulsen bearbeitet wird.
Abstract:
Die vorliegende Erfindung bezieht sich auf ein Verfahren zur Herstellung von mindestens einer dreidimensionalen Festkörperschicht (4), insbesondere zur Verwendung als Wafer, und/oder mindestens einem dreidimensionalen Festkörper (40). Das erfindungsgemäße Verfahren umfasst bevorzugt die folgenden Schritte: Bereitstellen eines Werkstücks (2) zum Ablösen der Festkörperschichten (4) und/oder der Festkörper (40), wobei das Werkstück (2) zumindest eine exponierte Oberfläche aufweist, Erzeugen von Defekten (34) innerhalb des Werkstücks (2), wobei die Defekte (34) mindestens eine Rissführungsschicht (8) vorgeben, wobei die Rissführungsschicht (8) zumindest eine dreidimensionale Kontur beschreibt Anbringung oder Erzeugung einer Aufnahmeschicht (10) an der exponierten Oberfläche des Werkstücks (2) unter Bildung einer Kompositstruktur, Temperieren der Aufnahmeschicht zum Erzeugen von Spannungen innerhalb des Werkstücks (2), wobei die Spannungen eine Rissausbreitung innerhalb des Werkstücks (2) bewirken, wobei durch die Rissausbreitung eine dreidimensionale Festkörperschicht (4) oder ein dreidimensionaler Festkörper (40) von dem Werkstück (2) entlang der Rissführungsschicht (8) abgetrennt wird, wobei eine Oberfläche der Festkörperschicht (4) oder des Festkörpers der dreidimensionalen Kontur der Rissführungsschicht (8) entspricht.
Abstract:
Processes of chamfering and/or beveling an edge of a glass substrate of arbitrary shape using lasers are described herein. Two general methods to produce chamfers on glass substrates are the first method involves cutting the edge with the desired chamfer shape utilizing an ultra-short pulse laser that is followed by mechanical polishing with a compliant polishing wheel.
Abstract:
Forming holes in a material (1) includes focusing a pulsed laser beam (2) into a laser beam focal line (2b) oriented along the beam propagation direction and directed into the material, the laser beam focal line (2b) generating an induced absorption within the material (1), the induced absorption producing a defect line along the laser beam focal line (2b) within the material (1), and translating the material (1) and the laser beam (2) relative to each other, thereby forming a plurality of defect lines in the material, and etching the material in an acid solution to produce holes greater than 1 micron in diameter by enlarging the defect lines in the material. A glass article includes a stack of glass substrates with formed holes of 1-100 micron diameter extending through the stack.
Abstract:
A method of laser processing a material to form a separated part is described, with also an article comprising sapphire. The method includes focusing a pulsed laser beam (2a) into a laser beam focal line (2b), viewed along the beam propagation direction, directed into the material (1), the laser beam focal line (7) generating an induced absorption within the material (1), the induced absorption producing a hole or fault line along the laser beam focal line (2b) within the material (1), and directing a defocused carbon dioxide (CO2) laser from a distal edge of the material (1) over the plurality of holes to a proximal edge of the material (1).
Abstract:
A method is described for obtaining a plurality of laminae, made of a material having known optical transparency characteristics, from an ingot made of the material, the ingot having an axis of symmetry (X), the method comprising: creating, in the ingot by use of a pulsed laser beam, a plurality of sacrificial layers with modified structure, the plurality of sacrificial layers being distributed along the axis of symmetry (X), the plurality of sacrificial layers dividing the ingot in a plurality of residual layers; subjecting the plurality of sacrificial layers to chemical etching, thereby causing a separation of the residual layers; and detaching the residual layers to produce the plurality of laminae made of the material.