Scientific Reports 6: Article number: 34166; published online: 29 September 2016; updated: 19 January 2017.

This Article contains an error in the Introduction section.

“Here, H and E are the magnetic and electric fields, respectively, ε0 = (n − ik)2 is the permittivity of free space, εc is the complex relative permittivity, σ is the optical conductivity, and ω is the angular frequency of the incident monochromatic optical field.”

should read:

“Here, H and E are the magnetic and electric fields, respectively, ε0 is the permittivity of free space, εc = (n − ik)2 is the complex relative permittivity, σ is the optical conductivity, and ω is the angular frequency of the incident monochromatic optical field.”