Science Daily August 16, 2023
Recent studies were able to modify some of the most defining features of light utilizing the strong coupling of light and matter in optical cavities. An international team of researchers (City College of New York, City University of New York, University of Washington, University of Michigan, MIT, Spain) studied the magneto-optical properties of a van der Waals magnet that supports strong coupling of photons and excitons even in the absence of external cavity mirrors. In the layered magnetic semiconductor CrSBr polaritons were shown to substantially increase the spectral bandwidth of correlations between the magnetic, electronic, and optical properties, enabling largely tunable optical responses to applied magnetic fields and magnons. According to the researchers their results highlight the importance of exciton–photon self-hybridization in van der Waals magnets and motivate novel directions for the manipulation of quantum material properties by strong light–matter coupling… read more. TECHNICAL ARTICLEÂ
Polariton–magnon coupling and coherent magnon effects. Credit: Nature volume 620, pages533–537, August 16, 2023Â