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Confining electromagnetic energy is crucial to enhance light‐matter interactions, with important implications for science and technology. Here, the opportunities offered by trapping and confining light in open structures, based on the concept of embedded eigenstates within the radiation continuum enabled by zero‐index metamaterials, are discussed. Building upon the physical insights offered by the...
Current research in optics, microscopy and quantum information processing frequently deals with the interaction of single quanta of light with single emitters, such as single molecules, quantum dots, or luminescent defect centers in solid materials such as silicon and diamond. Since it is impossible to focus a light wave to below the diffraction limit, i.e., to a size close to the cross section of...
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