This publisher’s note corrects a typo in the affiliations in Opt. Lett. 42, 5162 (2017) [CrossRef] .
© 2018 Optical Society of America
In the author affiliations of Ref. , Weiwei Pan was affiliated with only the Shanghai Institute of Optics and Fine Mechanics (affiliation 1) but should have been affiliated also with the University of the Chinese Academy of Sciences (affiliation 2). The paper was corrected online as of 13 December 2017.
1. W. Pan, L. Zhang, J. Zhou, X. Yang, and Y. Feng, Opt. Lett. 42, 5162 (2017). [CrossRef]