Subwavelength Optical Data Storage
Including “Articulated Optical DVD” (AO-DVD) & NanoGrating DVD” (NG-DVD).
Use of deterministic reflective structures with at least one principal structural feature that is smaller than the wavelength of light to alter the basic properties of that light (reflected amplitude, polarization, phase, wavelength and spatial orientation multiplexing) to encode data in a massively multi-level format.
A technology that could be the standard for content distribution for the 21st century.
Several peer reviewed journal articles on topic at this site.