Rectifying Nonreciprocal Perfect Absorber Based on Generalized Effective-Medium Theory for Composite Magnetic Metamaterials
, Yaping Zhang 1, Lingzhong Zhao 1, Guangfeng Wen 1, Lin Zhang 1, Qingtao Ba 1,2, Qilin Luo 1,3, Jingjing Yu 1 and Shiyang Liu 1,*Round 1
Reviewer 1 Report
1. Figure 6 is incomplete, lacking labels (a) (b) (c) (d) (e) (f) and two figures.
2. The composite MMs composed of an array of DCL ferrite rods with either hollow or dielectric cores, which can be employed to implement the NPAs. What is the effect of structure size of DCL ferrite rods on perfect absorption.
3. The tunability of nonreciprocal perfect absorption for the MM slab of type III by a BMF, shown by calculating the absorptance A as the function of BMF H0 and working frequency f (a) in figure 8. From figure figure 8(d), we can see that there are three absorption peaks. What are the reasons for the high and low frequency absorption peaks.
Author Response
"Please see the attachment."
The point-by-point response and the revised manuscript with the revisions marked by blue font are enclosed in the attach.
Author Response File: 
Author Response.pdf
Reviewer 2 Report
The authors numerically investigated the optical properties of two-dimensional lattices consisting of dielectric core-loaded ferrite rods. The authors elucidated the resultant nonreciprocal optical characteristics of the optical lattices through the parametric study with varying material's lossy behavior. Overall, this is a well-written article, and there are no significant issues except some suggestions below.
(1) In Fig. 1, it would be nice if a schematic showing the actual geometry of the five-layer lattices with an illustration of the incidence angle. This illustration may be similar to one of the images in Fig. 5.
(2) In Line 99 and 107, specific permittivity and magnetization values were selected for analysis. It would be nice if the authors could justify the reason for choosing these values.
(3) Nonreciprocity is one important characteristic. To see the trend of nonreciprocity, comparing two reflectance values at two opposite angles seems to be a little inconvenient. It would be helpful for the readers if the authors could introduce a new merit function for the absolute value of incidence angle.
Reviewer 3 Report
See the attached file.
Comments for author File: Comments.pdf
Author Response
"Please see the attachment."
The point-by-point response and the revised manuscript with the revisions marked by blue font are enclosed in the attach.
Author Response File: Author Response.pdf
Round 2
Reviewer 3 Report
The authors have well addressed the concerns of the reviewer. The manuscript has been improved accordingly. Therefore, the reviewer would like to recommmed this manuscript for publication.
