Quantum imaging breakthrough with spatially entangled photon pairs generated by lithium niobate thin film nonlinear silica metasurfaces

https://www.eurekalert.org/news-releases/1073108

"combines ghost imaging/ all-optical scanning, reconstructing images with exceptional resolution... no bulky nonlinear crystals bearing narrow angular emission, limited field of view, mechanical scanning... subwavelength-scale, optically-tunable photon emission angles by tuning pump beam wavelength... 1D detector array in idler path/ bucket detector in signal path... exceeds quantum ghost imaging setups >4 orders magnitude... free-space quantum communication, object tracking, sensing, quantum LiDAR"