Freeform engineered disordered metalenses for super-resolution imaging and communication

Area of Science:

• Optics and Photonics
• Information Theory
• Materials Science

Background:

• Effective information transmission through scattering media is crucial for advanced imaging and wireless communication.
• Existing super-resolution techniques face design and practical realization challenges.

Purpose of the Study:

• To investigate disorder-based engineered scattering structures for super-resolution imaging.
• To introduce a novel technique for enhancing information capacity using engineered all-dielectric media.

Main Methods:

• Designing and employing engineered all-dielectric scattering structures.
• Utilizing computational methods to enhance and extract sub-wavelength signals from far-field data.
• Exploiting disorder to modify information content in scattered fields.

Main Results:

• Demonstrated super-resolution imaging by enhancing and extracting signals from ultra sub-wavelength features.
• Achieved orthogonal transmission channels for closely-packed sources.
• Showcased significant resolution enhancement in scattering systems.

Conclusions:

• Disorder in engineered scattering structures can be leveraged for super-resolution imaging.
• The proposed technique offers a new scheme for encoding and multiplexing signals, enhancing information capacity.
• The approach provides a pathway for practical realization of advanced optical and communication systems.