论文标题
使用表面阻抗通过全息元面积生成光学非裂开光束的可能性
Possibilities to generation of optical non-diffracting beams by holographic metasurfaces using surface impedance
论文作者
论文摘要
在这项工作中，我们将全息元图的计算模拟与光学非裂开光束的生成。 metasurfaces是通过全息技术设计的，光学非裂纹光束的计算机产生的全息图（CGHS）是在计算上生成的。这些全息元图（HMS）是通过对具有子波长尺寸的介电底物上的金属斑块的周期性晶格进行建模，其中每个单位细胞中的每个单位细胞都会改变输入波的相位。我们使用表面阻抗（Z）通过每个晶胞中的跨表面来控制电磁波的相。子波长度确保实现有效的培养基理论。结果是根据非划分梁理论预测的。考虑到光学镊子，光学通信，光学计量学，3D成像以及其他方面的应用中应用的可能性，这些结果很重要
In this work, we present the computational simulations of holographic metasurfaces to generation of the optical non-diffracting beams. The metasurfaces are designed by the holographic technique and the computer-generated holograms (CGHs) of optical non-diffracting beams are generated computationally. These holographic metasurfaces (HMS) are obtained by modeling a periodic lattice of metallic patches on dielectric substrates with sub-wavelength dimensions, where each one of those unit cells change the phase of the incoming wave. We use the surface impedance (Z) to control the phase of the electromagnetic wave through the metasurface in each unit cell. The sub-wavelength dimensions guarantees that the effective medium theory is fulfilled. The results is according to the predicted by non-diffracting beams theory. These results are important given the possibilities of applications in optical tweezers, optics communications, optical metrology, 3D imaging, and others in optics and photonics
