Rahimi Hadi
Department of Physics, Shabestar Branch, Islamic Azad University, Shabestar, Iran.
Lasers Med Sci. 2025 Jan 7;40(1):10. doi: 10.1007/s10103-024-04277-8.
In laser safety eyewear, due to the lack of complete blocking of ultraviolet and infrared rays, we proposed a structure based on one-dimensional multilayer composed of several layers of silicon dioxide and zirconium dioxide materials alternately behind polycarbonate lens. It is find out that the acceptance angle range to the photonic crystal is 0 to 39°. This incident angle range corresponds to the band gap of the photonic crystal. In the transverse electric polarization, with increasing incident angle, the width of the gap rises, while in the transverse magnetic polarization decreases. Our results show that in the transverse electric mode, the optical density gradually increases with increasing angle while it decreases in the transverse magnetic one. The higher optical density, the higher eye protection at specified wavelength. If the incident wavelength is placed in the band gap region, the field intensity gradually decays. Therefore, the proposed structure for laser safety eyewear can provide the maximum reflection on the surface of the lens. Our supposed structure for safety eyewear can be used in infrared lasers.
在激光安全眼镜中，由于缺乏对紫外线和红外线的完全阻挡，我们提出了一种基于一维多层结构的设计，该结构由几层二氧化硅和二氧化锆材料在聚碳酸酯镜片后面交替组成。研究发现，光子晶体的接受角范围为0至39°。这个入射角范围对应于光子晶体的带隙。在横向电极化中，随着入射角的增加，带隙宽度增大，而在横向磁极化中则减小。我们的结果表明，在横向电模式下，光密度随角度增加而逐渐增大，而在横向磁模式下则减小。光密度越高，在特定波长下对眼睛的保护作用越强。如果入射波长置于带隙区域，场强会逐渐衰减。因此，所提出的激光安全眼镜结构可在镜片表面提供最大反射。我们设想的安全眼镜结构可用于红外激光器。
