| http://www.w3.org/ns/prov#value | - The present teachings also include a method of measuring an optical property of a material, the method including providing a structure and at least one optical device, where the structure includes a plurality of wells, each for holding a material, where the at least one optical device has a first facet, a second facet, and a third facet, the second facet extending between the first facet and the t
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