Thursday, February 01, 2007

US Patent 7170666 - Anti-reflective nanostructured surface formed by self-assembly

In order to reduce reflection in materials used in optical applications such as fiber optic switches or interference based displays this patent from HP teaches the use of self-assembled nanostructures. Claim 1 reads:

1. A method for forming an antireflection surface, comprising: forming a plurality of nanostructures of a first material on a surface of a second material, wherein the first material is different from the second material, and wherein the distribution of spatial periods of the nanostructures is set without lithographic patterning techniques; and converting the surface of the second material to operate as a graded index surface that is substantially antireflective for the wavelength of interest.

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