We, the authors, wish to make the following corrections to our paper [1]. We found that the literature we listed on page 2 has a mistake:
“Afterwards, many other devices for OAM generation have been proposed, such as the cylindrical lens in 1993 [30], spiral phase plates (SPPs) in 1994 [31], q plates in 2006 [32].”
We would like to give credit to the first phase rotor filter [2] and remove the year for the designs. Thus, the statement would be changed to:
“In 1992, a phase rotor filter was devised to introduce the azimuthal phase term [30]. Afterwards, many other devices for OAM generation have been proposed, such as the cylindrical lens [31], spiral phase plates (SPPs) [32], and q plates [33].”
The authors would like to apologize for any inconvenience caused. The change does not affect the scientific conclusions. The manuscript will be updated and the original will remain online on the article webpage.
References
- Chen, M.L.N.; Jiang, L.J.; Sha, W.E.I. Orbital Angular Momentum Generation and Detection by Geometric-Phase Based Metasurfaces. Appl. Sci. 2018, 8, 362. [Google Scholar] [CrossRef]
- Khonina, S.N.; Kotlyar, V.V.; Shinkaryev, M.V.; Soifer, V.A.; Uspleniev, G.V. The Phase Rotor Filter. J. Mod. Opt. 1992, 39, 1147–1154. [Google Scholar] [CrossRef]
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