Media, systems and methods for optical data storage

US10614848B2 · kind B2 · utility

Assignee

• Shanghai Naguang Information Technology Corp. · CN

Inventors

• Min Gu · Seoul, KR
• Yaoyu Cao · Elmore, AU
• Zongsong Gan · Melbourne, AU
• Xiangping Li · Longbeilingcun, CN
• Benjamin Scott Mashford · Melbourne, AU
• Haoran Ren · Melbourne, AU
• Qiming Zhang · Hangzhou City, CN

Key dates

• Filing date: Sep 29, 2016
• Grant date: Apr 7, 2020
• Expiry date: Sep 29, 2036

Classification

• Technology area (CPC G): Physics
• CPC primary: G11B7/254
• WIPO field: Audio-visual technology
• WIPO sector: Electrical engineering

Abstract

Provided are media, systems and methods for optical data storage. A nanocomposite material for use as an optical data recording medium comprises nanoparticles embedded in a host matrix, wherein the host matrix comprises a material having a high structural stability, and the nanoparticles comprise optical functional components having a first physical or chemical state and a property of permanent transition to a second physical or chemical state upon exposure to corresponding optical radiation, whereby information may be recorded in the first and second physical or chemical states of the optical functional components over an extended time period.