منابع مشابه
Simultaneous Exposure Using 532 and 860 nm lasers for visible lesion thresholds in the rhesus retina.
The growth of commercially available, simultaneous multi-wavelength laser systems has increased the likelihood of possible ocular hazard. For example, many systems utilize frequency multiplying methods to produce combinations of visible, near-infrared, and ultraviolet wavelengths. Unfortunately, very little data exists to substantiate the current methods for estimating hazards from simultaneous...
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Based on enhanced upconversion, we demonstrate a highly efficient method for converting a full image from one part of the electromagnetic spectrum into a new desired wavelength region. By illuminating a metal transmission mask with a 765 nm Gaussian beam to create an image and subsequently focusing the image inside a nonlinear PPKTP crystal located in the high intra-cavity field of a 1342 nm so...
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Members: László G. Nyúl [1] Balázs Erdőhelyi [2] Founded by: Research Fellowship from the Alexander von Humboldt-Stiftung [3] Collaborative Research Centre 539 (Germany) [4] Mobility support from the Deutscher Akademischer Austausch Dienst and from the Hungarian Scholarship Board Partners: Chair of Pattern Recognition, University of Erlangen-Nuremberg [5] (R. Bock, J. Meier, M. Mayer, J. Horneg...
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HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau...
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Traditionally, electrical discharge machining (EDM) or conventional laser tools have been used to manufacture a range of precision medical devices. However, these manufacturing methods cannot be used to achieve the miniature features, precision, surface quality, and yields required for manufacturing microfluidic devices for clinical lab-on-a-chip applications, precision drug-delivery catheters,...
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ژورنال
عنوان ژورنال: BMJ
سال: 1999
ISSN: 0959-8138,1468-5833
DOI: 10.1136/bmj.319.7220.1303