Physicists have developed a revolutionary method to track light-matter interactions inside cavities with incredible precision. Their hybrid cavity design unlocks new scientific frontiers, from quantum tech to material science.
Scientists from the Fritz Haber Institute of the Max Planck Society and the Helmholtz Center Dresden-Rossendorf have developed an innovative experimental platform to measure the electric fields of light trapped between two mirrors with sub-cycle precision. Using electro-optic Fabry-Pérot resonators, this approach enables precise control and observation of light-matter interactions, especially in the terahertz (THz) spectral range.
By designing a tunable hybrid cavity and mapping its complex sets of allowed modes, researchers can selectively position measurement points at the nodes or maxima of light waves—exactly where needed. This breakthrough paves the way for new discoveries in quantum electrodynamics and the ultrafast manipulation of material properties.
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