Spiral Imaging vs. Ghost Imaging: A Novel Approach to High-Rate Information Extraction

Spiral Imaging: Unlocking High-Rate Information Extraction Beyond Ghost Imaging

While ghost imaging utilizes the correlation properties of entangled photon pairs in position or momentum dimensions for non-local sensing, spiral imaging presents a novel approach. Instead of position or momentum, spiral imaging harnesses the correlation properties of photon pairs in the dimension of orbital angular momentum. This difference is key.

The richness of information encoded within the orbital angular momentum dimension allows spiral imaging to achieve information extraction rates exceeding 1 bit per photon. This surpasses the capabilities of conventional pixel-by-pixel imaging techniques, including ghost imaging, and opens up new possibilities for high-rate information extraction and sensing.