Comment on “Band gaps structure and semi-Dirac point of two-dimensional function photonic crystals” by Si-Qi Zhang et al.
Hai-Feng Zhang(章海锋)1,2
1 College of Optoelectronic Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, China; 2 College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China
Abstract Recently, Zhang et al. (Chin. Phys. B26 024208 (2017)) investigated the band gap structures and semi-Dirac point of two-dimensional function photonic crystals, and the equations for the plane wave expansion method were induced to obtain the band structures. That report shows the band diagrams with the effects of function coefficient k and medium column ra under TE and TM waves. The proposed results look correct at first glance, but the authors made some mistakes in their report. Thus, the calculated results in their paper are incorrect. According to our calculations, the errors in their report are corrected, and the correct band structures also are presented in this paper.
(Surface states, band structure, electron density of states)
Fund: Project supported by the Special Grade of the Financial Support from the China Postdoctoral Science Foundation (Grant No. 2016T90455), the China Postdoctoral Science Foundation (Grant No. 2015M581790), and the Chinese Jiangsu Planned Projects for Postdoctoral Research Funds, China (Grant No. 1501016A).
Hai-Feng Zhang(章海锋) Comment on “Band gaps structure and semi-Dirac point of two-dimensional function photonic crystals” by Si-Qi Zhang et al. 2018 Chin. Phys. B 27 014205
[1]
Zhang S Q, Lu J B, Liang Y, Ma J, Li H, Li X, Liu X J, Wu X Y and Meng X D 2017 Chin. Phys. B 26 024208
[2]
Zhang H F, Ding G W, Li H M and Liu S B 2015 Phys. Plasmas 22 022105
[3]
Zhang H F and Liu S B 2016 AIP Advances 6 085116
[4]
Zhang H F, Ding G W, Lin Y B and Chen Y Q 2015 Phys. Plasmas 22 052123
Multiple scattering and modeling of laser in fog Ji-Yu Xue(薛积禹), Yun-Hua Cao(曹运华), Zhen-Sen Wu(吴振森), Jie Chen(陈杰), Yan-Hui Li(李艳辉), Geng Zhang(张耿), Kai Yang(杨凯), and Ruo-Ting Gao(高若婷). Chin. Phys. B, 2021, 30(6): 064206.
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