中国物理B ›› 2017, Vol. 26 ›› Issue (2): 24202-024202.doi: 10.1088/1674-1056/26/2/024202
• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇 下一篇
Ru Wang(王茹), Xiangxian Wang(王向贤), Hua Yang(杨华), Yunping Qi(祁云平)
Ru Wang(王茹)1, Xiangxian Wang(王向贤)1, Hua Yang(杨华)1, Yunping Qi(祁云平)2
摘要: This paper presents the theoretical investigation of hierarchical sub-wavelength photonic structures with various periods and numbers of layers, which were fabricated using a high-order waveguide-mode interference field. A 442-nm laser was used to excite high-order waveguide modes in an asymmetric metal-cladding dielectric waveguide structure. The dispersion curve of the waveguide modes was theoretically analyzed, and the distribution of the interference field of high-order waveguide modes was numerically simulated using the finite-element method. The various dependences of the characteristics of hierarchical sub-wavelength photonic structures on the thickness and refractive index of the photoresist and the waveguide mode were investigated in detail. These hierarchical sub-wavelength photonic structures have various periods and numbers of layers and can be fabricated by a simple and low-cost method.
中图分类号: (Interference)