Trapping of light is made possible by the material's firmly bound excitons called quasiparticles with robust optical properties.
and magnetism interact so strongly, many magneto-optical systems call for sensitive light detection.
"Ordinarily, light does not respond so strongly to magnetism. This is why technological applications based on magneto-optic effects often require the implementation of sensitive optical detection schemes," said Menon, senior author and a professor at CCNY. In contrast, the team noticed that when the light enters the material, it exhibits interaction with the excitons in a way that it is trapped inside. This results in it becoming 10 times more magnetic.
"Technological applications of magnetic materials today are mostly related to magneto-electric phenomena. Given such strong interactions between magnetism and light, we can now hope to one day create magnetic lasers and may reconsider old concepts of optically controlled magnetic memory." Rezlind Bushati, a graduate student in the Menon group, who also contributed to the experimental work.
The US Air Force Office of Scientific Research, the Division of Materials Research of the National Science Foundation , the NSF CREST IDEALS Center, DARPA, and the German Research Foundation all provided funding for the CCNY research.Controlling quantum materials with light is of fundamental and technological importance. By utilizing the strong coupling of light and matter in optical cavities recent studies were able to modify some of their most defining features.
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