Matching the subwavelength confinement capabilities of plasmonic resonators, with the ultralow losses and cavity lifetimes of photonic crystals may be a step closer thanks to the work of a team lead by Sharon Weiss from the Electrical Engineering and Computer Science Department of Vanderbilt University (US). The researchers have, for the first time, experimentally demonstrated light confinement in a silicon “bowtie” crystal cavity. Published in Science, the article confirms the theoretical prediction that the group made in 2016 and paves the way towards all-dielectric field enhancement and confinement, crucial for applications in photovoltaic, computing, sensing, and quantum optics.
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