Portable, handheld devices consume little energy, but can deliver targeted light that renders common pathogens harmless.RAJUL RANDIVE, CRYSTAL ISThe Centers for Disease Control and Prevention (CDC) reports that one in every 25 hospital patients in the U.S. will contract a hospital-acquired infection (HAI) during their visit. Recent CDC reports show that progress is being made in HAI prevention, but there is still more work to be done. One opportunity to address the remaining gap in HAI reductions is to automate steps in the current point-of-care hygiene protocol with UV-enabled devices or by integrating ultraviolet C (UVC) disinfection with existing health care equipment. 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Each wavelength range is made from a specific semiconductor material family,...Photonics HandbookMicroscopy Illumination: Considering Nonlaser Light Sources: Metal halide and LED light sources are changing the illumination landscape in microscopy. Brighter, easier to use and growing in application, they are driving new options in fluorescence, conventional bright-field and other contrast techniques.As recently as five years ago, shopping for a microscope light source was fairly straightforward. For routine applications, it was tungsten halogen, typically 100 W, while for fluorescence, it was an...Photonics HandbookAspheric Lenses: Design Considerations: This first of two articles will cover design and manufacturing options for aspheres; the second will include more detail on manufacturing and testing processes. 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All...Photonics Buyers' GuideOptics Balzers AGSolutions from Optics Balzers Optics Balzers is the innovative and independent industry partner for the development and production of coated optical components and subassemblies. The company...Photonics Buyers' GuideLaser S.O.S. GroupLaser S.O.O Group was established over 30 years ago to service and support the rapidly expanding use of lasers in a wide range of industrial sectors. Starting out in the areas of medical and...Photonics Buyers' Guide