Generation of Elliptic-Symmetry Radially Polarized Optical Beam by Circle-Cassinian Optical Coordinate Transformation
Round 1
Reviewer 1 Report
The creation of a radially polarized beam with elliptical symmetry using isotropic phase plates in a 4f optical system is considered.
During the review of the manuscript, the following issues arise:
1. What is the efficiency of the transformation under consideration?
2. Was the inhomogeneity of the intensity distribution of the field of the input laser beam taken into account in the simulation?
3. What element base (materials) can be used to create phase plates?
Author Response
Please see the attachment.
Author Response File: 
Author Response.pdf
Reviewer 2 Report
This theoretical work presents a study of elliptical-symmetry radially polarized beams. The authors propose a free-space setup based on three-phase plates; these plates are proposed and designed to modify the polarization stage; as a result, circle-Cassinian conformal mapping is achieved. The authors provide a complete theoretical analysis, and the proposed study is in some way novel; as a result, the work is suitable for publication in Photonics.
*Despite this being a theoretical analysis, the authors need to discuss the challenges involved in the practical application.
*One limitation is the wavelength operation; what about different operation wavelengths? For instance, 1555 nm.
*The authors need to include a deep discussion about the application of the circle-Cassinian beams.
Author Response
Please see the attachment.
Author Response File: Author Response.pdf
