TY - JOUR T1 - Zero-index structures as an alternative platform for quantum optics JF - Proceedings of the National Academy of Sciences Y1 - 2017 A1 - Liberal, IƱigo A1 - Engheta, Nader VL - 114 UR - http://www.pnas.org/lookup/doi/10.1073/pnas.1611924114https://syndication.highwire.org/content/doi/10.1073/pnas.1611924114http://www.pnas.org/syndication/doi/10.1073/pnas.1611924114 IS - 5 JO - Proc Natl Acad Sci USA ER -