Radiative energy band gap of nanostructures coupled with quantum emitters around the epsilon-near-zero frequency
Source abstract
Abstract
Epsilon-near-zero (ENZ) materials have been demonstrated to exhibit unique electromagnetic properties. Here we propose the concept of a radiative energy band gap for an ENZ nanoparticle coupled with a quantum emitter (QE). The radiative emission of the coupled QE--nanoparticle can be significantly suppressed around the ENZ frequency and substantially enhanced otherwise, yielding an effective energy band gap for radiation. This suppression is effectively invariant with respect to particle size and is therefore an intrinsic property of the ENZ material. Our concept also heralds an alternative pathway to quench the emission from a QE, which may find potential application in quantum information storage.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Plasmonic and Surface Plasmon Research · Thermal Radiation and Cooling Technologies · Metamaterials and Metasurfaces Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Electrical and Computer Engineering, University of California, 95616 Davis, California, USA
Department of Materials Science and Engineering, University of California, 95616 Davis, California, USA
Institute of Smart Cities, Public University of Navarre, 31006 Pamplona, Spain
Department of Electronics and Electromagnetism, University of Seville, 41012 Seville, Spain
Department of Electrical and Systems Engineering, University of Pennsylvania, Philadelphia, 19104 Pennsylvania, USA
Funding
Defense Advanced Research Projects Agency
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