@article {1312414,
	title = {Topology-Optimized Multilayered Metaoptics},
	journal = {Physical Review Applied},
	volume = {9},
	number = {044030},
	year = {2018},
	author = {Lin, Zin and Benedikt Groever and Federico Capasso and Alejandro W. Rodriguez and Lon{\v c}ar, Marko}
}
