Some new properties of optical diodes were investigated, as well as compared with the known ones for the following three systems: 1) an isotropic magnetoactive layer, 2) a magnetophotonic crystal layer, and 3) a photonic crystal with a helical structure, assuming that these systems are in an external magnetic field and have giant parameters of magneto-optical activity. It is shown that these systems can be used as broadband ideal optical diodes. At giant values of the magneto-optical activity in the long-wavelength region of the spectrum, there appears a new photonic band gap (PBG) for helically structured photonic crystals. Accordingly, two PBGs and a transparent window between them appear in the whole spectral region. When magneto-optical activity parameter increases, this new (the second) PBG occupies the entire spectrum. Furthermore, the light localization at the edge modes is investigated. It is shown that an unusually strong light localization takes place at some modes. The trapped total light energy and the energy density peculiarities are investigated, too.

研究了光电二极管的一些新特性，并与以下三个系统的已知特性进行了比较：1）各向同性的磁活性层； 2）磁光子晶体层； 3）具有螺旋结构的光子晶体，假定这些系统处于外部磁场中，并具有巨大的磁光活动参数。结果表明，这些系统可以用作宽带理想光二极管。在光谱的长波长区域中，在磁光活动的巨大值处，出现了螺旋结构光子晶体的新光子带隙（PBG）。因此，两个PBG和它们之间的透明窗口出现在整个光谱区域中。当磁光活动参数增加时，这个新的（第二个）PBG会占据整个光谱。此外，研究了边缘模式下的光定位。结果表明，在某些模式下会发生异常强的光定位。还研究了被捕获的总光能和能量密度的特性。