Owing to a production error, Eq. (1) in Opt. Lett. 38, 3410 (2013) was not properly rendered. That error is corrected here.
© 2014 Optical Society of America
In Eq. (1) of , the square root should not have extended over the final variable. The corrected equation is as follows:
1. A. B. Klemm, D. Stellinga, E. R. Martins, L. Lewis, G. Huyet, L. O’Faolain, and T. F. Krauss, Opt. Lett. 38, 3410 (2013). [CrossRef]