US 9,812,202 B2
Three dimensional opto-magnetic data storage system and method
Yemliha Bilal Kalyoncu, Istanbul (TR); and Ozhan Ozatay, Istanbul (TR)
Appl. No. 14/758,193
Filed by Yemliha Bilal Kalyoncu, Istanbul (TR); and Ozhan Ozatay, Istanbul (TR)
PCT Filed Dec. 26, 2013, PCT No. PCT/IB2013/061337
§ 371(c)(1), (2) Date Jun. 26, 2015,
PCT Pub. No. WO2014/102728, PCT Pub. Date Jul. 3, 2014.
Claims priority of application No. a 2012/15356 (TR), filed on Dec. 26, 2012.
Prior Publication US 2015/0357039 A1, Dec. 10, 2015
Int. Cl. G11C 7/00 (2006.01); G11C 13/04 (2006.01); G11C 13/06 (2006.01); G11C 5/02 (2006.01); G11C 19/08 (2006.01); G11C 19/30 (2006.01); G11C 11/16 (2006.01)
CPC G11C 13/06 (2013.01) [G11C 5/02 (2013.01); G11C 11/161 (2013.01); G11C 11/1675 (2013.01); G11C 19/0841 (2013.01); G11C 19/30 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A three dimensional opto-magnetic data storage system comprising:
at least one top layer which comprises at least two first optical units arranged side by side such that there is a space between each two adjoining first optical units, at least one first thermal insulator located in the space and prevents heat transfer between two adjoining first optical units, and at least one first magnetic layer located on a plane formed by the first optical units and the first thermal insulator;
at least one intermediate layer which is located under the top layer and comprises at least two second optical units arranged side by side such that there is a space between each two adjoining second optical units, at least one second thermal insulator located in the space and prevents heat transfer between two adjoining second optical units, at least one second magnetic layer present on a plane formed by the second optical units and the second thermal insulator, and at least one first transparent layer present on the second magnetic layer; and
at least one bottom layer which is located under the intermediate layer and comprises at least one third magnetic layer and at least one second transparent layer located on the third magnetic layer,
wherein each of the first optical units and the second optical units enables a circularly polarized light required for recording data to be generated and further comprises:
at least one active layer in which the circularly polarized light is generated,
at least one lower electric contact enabling electric energy to be transferred to the active layer and having a circular shaped hole at the center to allow the circularly polarized light to pass,
at least one upper electric contact enabling electric energy to be transferred to the active layer,
at least two reflecting layers reflecting the circularly polarized light,
wherein each of the first magnetic layer, the second magnetic layer and the third magnetic layer is manufactured from a ferromagnetic material suitable for opto-magnetic recording and comprises at least two storage bits and at least one upper buffer bit enabling data to be transferred up, and at least one lower buffer bit enabling data to be transferred downward therein, and
wherein the first transparent layer transfers the circularly polarized light generated by each of the first optical units to the second magnetic layer, and the second transparent layer transfers the circularly polarized light generated by each of the second optical units to the third magnetic layer.