Patent ID: 8169879
Filing Date: 2012-05-01
Classification: B82Y,G11B

Abstract:
1. A multilayer optical recording system to record information with light, comprising: a recording medium with a flat principal plane, having a second dielectric member in which second microstructures are implanted, the second microstructures being formed of a metal or a semiconductor to be arranged periodically in a direction substantially perpendicular to the principal plane of the recording medium; a lens unit to be in contact with the principal plane or to have a gap with the principal plane, including a metamaterial lens or a plasmon lens, the metamaterial lens having a first dielectric member in which first microstructures are implanted in a substantially regular manner to form a nano spot within the recording medium, the nano spot forming an information bit, the first microstructures being formed of a metal or a semiconductor, the plasmon lens having an aperture, the aperture being a hole or a slit created in a metal film; and a microscopic drive unit configured to adjust a relative position between the lens unit and the recording medium to form a light spot in the second dielectric member or the second microstructures.