Русский

Shanghai University of Technology publishes the latest Nature paper

824
2024-02-26 14:40:39
Посмотреть перевод

With the increasing demand for human data, the requirements for data storage methods are also increasing. Optical Data Storage (ODS) is a light based storage method commonly used in DVDs, which is low-cost and very durable. But ODS usually stores data in a single layer, and the amount of data that can be stored is limited. Gu Min, academician of Shanghai University of Technology, Wen Jing, and Ruan Hao, researcher of the Chinese Academy of Sciences Shanghai Institute of Optics and Precision Mechanics, published a research paper entitled A 3D nanoscale optical disk memory with petabit capacity on the international top academic journal Nature. This paper describes a new method of storing more data in optical discs, which uses three-dimensional rather than two-dimensional methods to store data, with data storage capacity reaching an astonishing petabit level, or 1000 trillion bits (1015 bits).

In this study, Wen Jing, Ruan Hao, Gu Min, and others developed a new method that uses a three-dimensional optical data storage (ODS) structure to store data in hundreds of layers, rather than just one layer. This method utilizes a new storage medium called AIE-DDPR, which is made by doping aggregation induced luminescent dyes in photoresist films. This enables the thin film to be read and written at the nanoscale. This thin film is composed of molecules that absorb photons (photo initiators) and highly photosensitive molecules to obtain written data.

The research team used a 54 nanometer laser recording point size to store data. The disk medium had 100 layers of data, with a spacing of 1 micrometer between each layer, which greatly increased the surface density of the ODS film. The research team also found that information stored in deeper layers of the film has a quality comparable to data stored in shallower layers near the surface.

The principle and production process of nanoscale optical writing and reading for blank AIE-DDPR optical discs
The research team pointed out that the workflow for producing AIE-DDPR discs is compatible with existing methods for producing DVDs, indicating the possibility and economic feasibility of producing these films on a large scale. The paper also pointed out some limitations of this technology, including the writing speed and energy consumption of the process.

Source: Sohu

Связанные рекомендации
  • Laser cleaning equipment manufacturer LPC receives multiple orders

    Recently, laser cleaning equipment manufacturer Laser Photonics Corporation (LPC) has disclosed multiple orders in a row.On December 26th, LPC received an order from Walsh Service Solutions to purchase a handheld laser cleaning equipment. It is understood that the manufacturer is purchasing CleanTech IR-3040, a high-performance handheld fiber laser cleaning device designed by LPC, mainly used for ...

    2024-12-31
    Посмотреть перевод
  • Blue Laser Fusion plans to commercialize nuclear fusion reactors using laser technology by 2030

    Recently, a start-up company co founded by Nobel laureate Hideyoshi Nakamura in San Francisco plans to commercialize nuclear fusion reactors using laser technology around 2030.Hideyoshi Nakamura won the 2014 Nobel Prize in Physics for inventing blue light-emitting diodes. He founded Blue Laser Fusion in Palo Alto, California in November 2022. Partners include Hiroaki Ohta, former CEO of drone manu...

    2023-08-21
    Посмотреть перевод
  • Combined spectral lasers can unlock the potential of laser plasma accelerators

    A team of researchers in Berkeley Lab's Accelerator Technology and Applied Physics (ATAP) division has developed a new technique that combines fiber lasers of different wavelengths to generate ultra-short laser pulses. The research is in the journal Optics Letters.This work could advance the development of laser plasma accelerators (LPA), which have the potential to push the frontiers of high-en...

    2023-08-04
    Посмотреть перевод
  • BOFA launches the latest generation of high-temperature 3D printing filtration technology

    BOFA has consolidated its position as a market leader in additive manufacturing of portable smoke and particle filtration systems with the latest generation of 3D PrintPRO technology designed specifically for high-temperature processes.3D PrintPRO HT focuses on the 230V market and can filter high-temperature particles, gases, and nanoparticles emitted during polymer processing in the printing room...

    2024-04-15
    Посмотреть перевод
  • IPG Japan office and technical center officially opened

    Recently, IPG Photonics, a leading company in the global fiber laser field, announced the official opening of its new office and central technology center in Japan, marking a solid step in the technology giant's strategic deployment in the Asia Pacific region.The opening of this new office not only demonstrates IPG Photonics' high regard for Japan and the entire Asia Pacific market, but also indic...

    2024-07-15
    Посмотреть перевод