Information transfer around arbitrary opaque occlusions using programmed diffraction

Md Sadman Sakib Rahman; Tianyi Gan; Emir Arda Deger; Çagatay Isil; Mona Jarrahi; Aydogan Ozcan

doi:10.1117/12.3000290

13 March 2024 Information transfer around arbitrary opaque occlusions using programmed diffraction

Md Sadman Sakib Rahman, Tianyi Gan, Emir Arda Deger, Çagatay Isil, Mona Jarrahi, Aydogan Ozcan

Proceedings Volume PC12903, AI and Optical Data Sciences V; PC129030U (2024) https://doi.org/10.1117/12.3000290
Event: SPIE OPTO, 2024, San Francisco, California, United States

Abstract

We directly transfer optical information around arbitrarily-shaped, fully-opaque occlusions that partially or entirely block the line-of-sight between the transmitter and receiver apertures. An electronic neural network (encoder) produces an encoded phase representation of the optical information to be transmitted. Despite being obstructed by the opaque occlusion, this phase-encoded wave is decoded by a diffractive optical network at the receiver. We experimentally validated our framework in the terahertz spectrum by communicating images around different opaque occlusions using a 3D-printed diffractive decoder. This scheme can operate at any wavelength and be adopted for various applications in emerging free-space communication systems.

Conference Presentation

Citation Download Citation

Md Sadman Sakib Rahman, Tianyi Gan, Emir Arda Deger, Çagatay Isil, Mona Jarrahi, and Aydogan Ozcan "Information transfer around arbitrary opaque occlusions using programmed diffraction", Proc. SPIE PC12903, AI and Optical Data Sciences V, PC129030U (13 March 2024); https://doi.org/10.1117/12.3000290

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