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Published on: April 4, 2017
Plasmonic data storage medium with metallic nano-aperture array embedded in dielectric material
1School of Mechanical Engineering, Yonsei University, 262 Seongsanno, Seodaemun-gu, Seoul 120-749, Korea.
Optics Express
|December 10, 2009
Summary
A novel plasmonic data storage medium uses bowtie apertures for higher density and lower recording power. This technology offers 1.8x greater data storage capacity and requires less than a quarter of the power compared to Blu-ray discs.
Area of Science:
- Optics and Photonics
- Materials Science
- Data Storage Technologies
Background:
- Conventional optical data storage faces limitations in density and energy efficiency.
- Plasmonic nanostructures offer potential for enhanced optical properties and miniaturization.
Purpose of the Study:
- To investigate a plasmonic data storage medium utilizing a high-transmission metal aperture array.
- To evaluate the performance metrics of this novel storage medium, including recording power, data contrast, and crosstalk.
Main Methods:
- Utilized the finite difference time domain (FDTD) method for electromagnetic simulations.
- Designed and analyzed a two-dimensional array of bowtie apertures with specific dimensions and pitches.
- Calculated key parameters such as exposure power, data contrast, and inter-track crosstalk.
Main Results:
- The proposed plasmonic medium requires less than 25% of the exposure power compared to conventional Blu-ray discs.
- Achieved a data storage density approximately 1.8 times greater than Blu-ray discs.
- Quantified crosstalk between adjacent data tracks to assess readability.
Conclusions:
- The plasmonic data storage medium demonstrates significant advantages in terms of energy efficiency and storage density.
- Bowtie apertures in a high-transmission metal array show promise for next-generation optical data storage.
- Further research can optimize aperture design and material properties for commercial viability.
