Multidimensional Meta-optics Storage via Nonorthogonal-Angular Guided-Wave Incidence

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.