Ultra high-density recordable optical data recording media

An ultra high-density recordable optical data recording media, used to data storage, utilizing a laser light for reading and writing data, comprises of:

• a substrate, made from a transparent material;
• a composite-layer set, formed on the substrate consisting of:
• a lower transparent protecting layer formed on the surface of the substrate;
• a near-field electromagnetic wave enhancement layer, made from a dielectric material with a plurality of metal particles, and formed on the surface of the lower transparent protecting layer by controlling the ratio of the dielectric materials and metal particles, the diameters of the metal particles, and the distances between the metal particles to gain different resonance enhancement effects with various wavelengths of the laser beams;
• an upper transparent protecting layer formed on the surface of the near-field electromagnetic wave enhancement layer wherein the thickness of the upper transparent protecting layer being 1 nm to 100 nm to gain different resonance enhancement effects with various wavelengths of the laser beams;
• a recording layer, formed on the surface of the upper transparent protecting layer to data storage, and the near-field electromagnetic field between the near-field electromagnetic wave enhancement layer and the recording layer resulted in a resonance enhancement effect;
• a protecting layer formed on the surface of the recording layer;
• and
• wherein the recording media is to read under 1.5 to 4.5 mW reading power and a size of the recording marks is from 20 to 100 nm.