@article {1075116,
	title = {Near-zero refractive index photonics},
	journal = {Nature Photonics},
	year = {2017},
	pages = {149-158},
	url = {https://www.nature.com/nphoton/journal/v11/n3/full/nphoton.2017.13.html},
	author = {Inigo Liberal and Nader Engheta}
}
