Electrically Tunable Metasurface Perfect Absorbers for Ultrathin Mid-Infrared Optical Modulators Yao, Yu ; Shankar, Raji ; Kats, Mikhail A. ; Song, Yi ; Kong, Jing ; Loncar, Marko ; Capasso, Federico Abstract Publication: Nano Letters Pub Date: November 2014 DOI: 10.1021/nl503104n Bibcode: 2014NanoL..14.6526Y