Abstract
In their report “A dielectric omnidirectional reflector” (27 Nov. p. 1679), Yoel Fink et al. describe a model for an omnidirectional reflector in which it is possible to design and build mirrors that have a reflectance that is very high, regardless of the angle at which light is incident—thus the name omnidirectional mirror. These “perfect mirrors” are composed of multiple, dielectric (transparent, nonmetallic) layers that will not incur the light energy losses found in metallic mirrors and will perhaps make possible new applications. Fink et al. state that they are unaware of any previous knowledge of this phenomenon.
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