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Optical Storage and Recording Using Surface Polaritons on Grating Structure

IP.com Disclosure Number: IPCOM000051838D
Original Publication Date: 1981-Mar-01
Included in the Prior Art Database: 2005-Feb-11

Publishing Venue

IBM

Related People

Authors:
Philpott, MR Sincerbox, GT [+details]

Abstract

An optical storage and recording system using surface polaritons has a prism free structure in which the surface of the surface active medium is molded in the shape of a periodic grating. As shown in the drawing, the system 10 includes a periodic grating 12 of a surface active material, such as Cu, Ag, Au or Al, that is coated with the optical storage or recording medium 14. Medium 16 is the substrate or a second optical storage or recording medium that can be accessed from below. Alternatively a composite structure addressable from both sides consists of two systems 10 joined back to back via substrates 16.