A light source of coaxially stacked volumetric light cells that can be used either in a lamp or a display. Each light cell is composed of high quantum yield nanocrystals in a silica aerogel matrix that is excited by a controlled ultraviolet light source. From these stacked cell assemblies visible light is emitted of a desired color or color temperature and brightness.

 
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> Nano-enhanced Raman spectroscopy-active nanostructures including elongated components and methods of making the same

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