Review discusses using nonlinear optics with structured light

https://phys.org/news/2022-06-discusses-nonlinear-optics.html

"new forms structured light... product of fields nonlinear optics rather than their sum. Quantum control light... boost by replacing ubiquitous linear beam splitter with nonlinear crystals... enhance imaging... high-dimensional teleportation... light-matter interaction in nonlinear optics means that advanced structured matter can be used to customized structured light, for instance, the use of advanced artificial materials such as metasurfaces and metamaterial, offering unparalleled nonlinear efficiency"

Related: Physicists Use Quantum Mechanics to Pull Energy out of Nothing

https://www.quantamagazine.org/physicists-use-quantum-mechanics-to-pull-energy-out-of-nothing-20230222/