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This study introduces a novel meta-optics approach for high-capacity optical data storage and encryption. It enables nonorthogonal light incidence, significantly boosting information capacity and security through multidimensional multiplexing.

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Area of Science:

  • Optics
  • Information Technology
  • Materials Science

Background:

  • Current meta-optics for information storage are limited to orthogonal light incidence.
  • There is a growing need for high-capacity and secure optical data solutions.

Purpose of the Study:

  • To develop a meta-optics system capable of nonorthogonal light incidence for enhanced optical information storage and encryption.
  • To integrate angular multiplexing with wavelength and polarization multiplexing for 3D encryption.

Main Methods:

  • A phase hybridization and encoding methodology was developed to enable nonorthogonal incidence.
  • Detour-phase relationships were analyzed and optimized for phase hybridization.
  • A three-dimensional encryption meta-optics system was realized by integrating nonorthogonal angles, wavelength, and polarization multiplexing.

Main Results:

  • The system successfully reconstructed up to 24 holographic channels within the same field of view.
  • The proposed strategy enhances optical information capacity.
  • The encryption security was significantly improved, requiring three specific optical decryption keys.

Conclusions:

  • The developed meta-optics platform enables nonorthogonal angular multiplexing for advanced optical information storage and encryption.
  • This approach offers a promising pathway for high-capacity data storage, secure optical encryption, and novel display technologies.