Superresolution in Optical Disk Systems with a Non-Linear Refractive Layer

Abstract

The article deals with non-commutative (boson) probability theory. The phase space considered is a linear symplectic space built up from a Hilbert space. Generating functionals for representations of the canonical commutation relations are related to characteristic functionals for random distributions on the underlying Hilbert space. An attempt is made to characterise those Uvy-Khinchin characteristic functionals on phase space which are generating functionals by means of a generalised Heisenberg inequality.

High density optical recording based on transient photobleaching.

“…Several methods are proposed to achieve super-resolution by decreasing the spot size beyond X/NA. Heat-mode super-resolution was demonstrated in optical disks using magnetization materials or phase change materials [18,191. Super-resolution using a nonlinear refractive layer was also proposed [20]. In this paper we will propose a new method of possible photon-mode super-resolution based on transient photobleaching due to the formation of excited state of an organic dye layer deposited on the recording layer.. We will also report experimental results to support such a proposal using a phthalocyanine derivative as one of the most promising candidates for such purposes.…”

Multi- Layered Optical Storage with Nonlinear Read/Write

“…The transmittance function, again assumed to be point-1ike, is t(x~-x) = h3(x) { (~(x~-a/2-x)+ (~(x~ + a/2-x) } (8) for the THG read-out and t(x~-x)=~(x~-a/2-x)+(~(x.+a/2-x) (9) for linear read-out, where a is the distance between two data bits. By using the normalized spacing v=7ziaNA/1, we can write the intensity on the detector as ld(u,v)=1h5(u-v)+h5(u+v)12 (10) for the THG read-out, and ld(u,v)=1h2(u-v)+h2(u+v)12 (11) for linear read-out.…”