Nano Letters, vol. 12, no. 2, page. 769 - 773, 2012-02
JOURNAL OF PHYSICS D-APPLIED PHYSICS, vol. 42, no. 8, page. 85005 - 85005, 2009-04-21
ACS NANO, vol. 4, no. 6, page. 3222 - 3226, 2010-06
THIN SOLID FILMS, vol. 518, no. 10, page. 2665 - 2668, 2010-03-01
OPTICS EXPRESS, vol. 16, no. 8, page. 5299 - 5304, 2008-04-14