Equations (12) and (13) in a previous Letter [Opt. Lett. 37, 2778 (2012)] were incorrect due to a mistake in writing and are modified here.
© 2014 Optical Society of America
OSA participates in Crossref's Cited-By Linking service. Citing articles from OSA journals and other participating publishers are listed here.
Alert me when this article is cited.
Equations on this page are rendered with MathJax. Learn more.