Daniel S. BurgessResearchers at Lumileds Lighting LLC in San Jose, Calif., Sandia National Laboratories in Albuquerque, N.M., and Agilent Technologies in Palo Alto, Calif., have reported improved far-field radiance from electrically operated InGaN/GaN LEDs that feature a photonic crystal structure in the top layer. With the development of a suitable manufacturing process for optimized designs, the work promises blue emitters with much higher extraction efficiencies than currently are available. Jonathan J. Wierer, senior scientist with Lumileds' advanced laboratories group, said that light extraction...Read full articleRelated content from Photonics MediaArticlesZEISS to Provide Metrology Software for 3D Scan SolutionsZEISS and 3D scanner and measurement systems developer Scantech are partnering to offer Scantech scanners with ZEISS inspection software. 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