中国物理B ›› 2009, Vol. 18 ›› Issue (12): 5326-5330.doi: 10.1088/1674-1056/18/12/034
赵华君, 彭拥军, 谭菊, 廖长荣, 李鹏, 任晓霞
Zhao Hua-Jun(赵华君)†,Peng Yong-Jun(彭拥军),Tan Ju(谭菊) Liao Chang-Rong(廖长荣),Li Peng(李鹏), and Ren Xiao-Xia(任晓霞)
摘要: A novel optimal design of sub-wavelength metal rectangular gratings for the polarizing beam splitter (PBS) is proposed. The method is based on effective medium theory and the method of designing single layer antireflection coating. The polarization performance of PBS is discussed by rigorous couple-wave analysis (RCWA) method at a wavelength of 1550~nm. The result shows that sub-wavelength metal rectangular grating is characterized by a high reflectivity, like metal films for TE polarization, and high transmissivity, like dielectric films for TM polarization. The optimal design accords well with the results simulated by RCWA method.
中图分类号: (Gratings)