@article{Foreman2012b, 
author = {Foreman, M. R. and Sivan, Y. and Maier, S. A. and T\"{o}r\"{o}k, P.}, 
journal = {Phys. Rev. B}, 
pages = {155441}, 
title = {Independence of plasmonic near-field enhancements to illumination beam profile}, 
volume = {86}, 
year = {2012},
doi = {10.1103/PhysRevB.86.155441},
}