Comment on “Band gaps structure and semi-Dirac point of two-dimensional function photonic crystals” by Si-Qi Zhang et al.  

作　　者：章海锋 

机构地区：[1]College of Optoelectronic Engineering, Nanjing University of Posts and Telecommunications [2]College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics

出　　处：《Chinese Physics B》2018年第1期618-622,共5页中国物理B（英文版）

基　　金：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);the Chinese Jiangsu Planned Projects for Postdoctoral Research Funds,China(Grant No.1501016A)

摘　　要：Recently, Zhang et al. （Chin. Phys. B 26 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.Recently, Zhang et al. （Chin. Phys. B 26 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.

关 键 词：two-dimensional function photonic crystals photonic band gaps plane wave expansion method Monte Carlo method 

分 类 号：O4[理学—物理]