@article{Alu2019, author = "Andrea Alu and Sander Mann and Dimitrios Sounas", title = "{3706060.pdf}", year = "2019", month = "1", url = "https://opticapublishing.figshare.com/articles/journal_contribution/3706060_pdf/7423823", doi = "10.6084/m9.figshare.7423823.v1" }