Comment on "Optical orbital angular momentum from the curl of polarization"

TL;DR

This paper provides a critical commentary on the findings of Wang et al. regarding optical orbital angular momentum derived from the curl of polarization, discussing potential implications and clarifications.

Contribution

It offers an insightful critique and clarification of the original work on optical orbital angular momentum and polarization curl.

Findings

Highlights key points and potential issues in Wang et al.'s analysis

Provides clarification on the theoretical aspects of optical OAM

Suggests directions for future research in optical angular momentum

Abstract

Comment on X.-L. Wang et al., Phys. Rev. Lett. 105, 253602 (2010).