OPTICAL ARRANGEMENT AND ITS USE
The invention relates to an optical arrangement (10) having a laser (1), wherein an amplitude mask (3) is introduced in the beam path of the laser beam (2) coming from the laser (1), between the laser (1) and a focusing element (4), such that the laser beam (2) can be guided such that the laser beam...
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Main Authors | , , |
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Format | Patent |
Language | English French |
Published |
07.04.2015
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Subjects | |
Online Access | Get full text |
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Summary: | The invention relates to an optical arrangement (10) having a laser (1), wherein an amplitude mask (3) is introduced in the beam path of the laser beam (2) coming from the laser (1), between the laser (1) and a focusing element (4), such that the laser beam (2) can be guided such that the laser beam (2) strikes the amplitude mask (3) before the laser beam is focused in the focusing element (4) and the laser beam (2'), which has been modified by the focusing element (4), is directed at a focal point (6) and, if appropriate, at least two sub-maxima (7, 7') in a photosensitive material (5). The arrangement (10) is thus suitable for producing chemical or physical changes, ablations, micro-explosions, plasmas or micro-tears in the photosensitive material (5). The arrangement (10) is preferably used for carrying out single-photon or multi-photon absorption in the focal point (6) or in one of the at least two sub-maxima (7, 7') of the modified laser beam (2') in the photosensitive material (5). |
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Bibliography: | Application Number: CA20082701597 |