Efficient speckle-free laser marking using a spatial light modulator
نویسندگان
چکیده
منابع مشابه
Application of a liquid crystal spatial light modulator to laser marking.
Laser marking is demonstrated using a nanosecond (ns) pulse duration laser in combination with a liquid crystal spatial light modulator to generate two-dimensional patterns directly onto thin films and bulk metal surfaces. Previous demonstrations of laser marking with such devices have been limited to low average power lasers. Application in the ns regime enables more complex, larger scale mark...
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Before laser speckle contrast imaging (LSCI) can be used reliably and quantitatively in a clinical setting, there are several theoretical and practical issues that still must be addressed. In order to address some of these issues, an electro-optical system that utilizes a nematic liquid crystal spatial light modulator (SLM) to mimic LSCI experiments was assembled. The focus of this paper is to ...
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Dissipative solitons are self-localized states which can exist anywhere in a system with translational symmetry, but in real systems this translational symmetry is usually broken due to parasitic inhomogeneities leading to spatial disorder, pinning the soliton positions. We discuss the effects of semiconductor growth induced spatial disorder on the operation of a cavity soliton laser based on a...
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The combmed use of the photoelectnc and electro-optic properttes of the BI,,SIO~~ (BSO)-crystal leads to a new posslblhty of reahzmg a spa&xl hght modulator Under certam geometrical condrtions, whxh will be discussed, It 1s possible to reahze, that the BSO-crystal becomes blrefrmgent depending on the local fiummance, the physxal connection between the dlstnbutlons of blrefrmgence and lllummance...
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ژورنال
عنوان ژورنال: Applied Physics A
سال: 2013
ISSN: 0947-8396,1432-0630
DOI: 10.1007/s00339-013-8186-1