http://www.princeton.edu/~chouweb/publications/223%20Chou_Ultrathin%20high-efficiency%20broad-band_OpticsExpress_2012.pdf http://www.princeton.edu/~chouweb/publ

http://www.princeton.edu/~chouweb/publications/223%20Chou_Ultrathin%20high-efficiency%20broad-band_OpticsExpress_2012.pdf http://www.princeton.edu/~chouweb/publications/223%20Chou_Ul...