Monolayer hexagonal boron nitride can extend plasmonic enhancement limit

A research team led by Prof. Yang Liangbao from Hefei Institutes of Physical Science, Chinese Academy of Sciences found that hexagonal boron nitride (h-BN) could effectively block electron tunneling and extend the ultimate plasmonic enhancement limits in a single-atom-layer gap, providing deep insights into quantum mechanical effects in plasmonic systems and enabling potential novel applications based on quantum plasmonics. The results were published in Nano Letters.