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Multi-wavelength metal-dielectric nonpolarizing beam splitters in the near-infrared range |
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| Authors: | Jin Hui Shi Zheng Ping Wang Chun Ying Guan Jun Yang Tian Shu Fu |
| Institution: | 1. Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China;2. Institute of Materials Physics, Hangzhou Dianzi University, Hangzhou, Zhejiang Province 310018, China;3. School of Physical Science and Technology, Shanghai Tech University, Shanghai 200031, China;1. MOE Key Laboratory of Advanced Micro-Structured Materials, Shanghai 200092, China;2. Institute of Precision Optical Engineering, School of Physics Science and Engineering, Tongji University, Shanghai 200092, China;3. IFSA Collaborative Innovation Center, Shanghai Jiao Tong University, Shanghai 200240, China |
| Abstract: | A 21-layer multi-wavelength metal-dielectric nonpolarizing cube beam splitter was designed by use of an optimization method and theoretically investigated in the near-infrared range. The angular dependence of the reflectance and differential phases induced by reflection and transmission were presented. The simulation results revealed that the non-polarizing effect could be achieved for both the amplitude and phase characteristics at 1310 and 1550 nm. The differences between the simulated and the target reflectance of 50% are less than 2% and differential phases are less than 5°in the range 1300–1320 nm and 1540–1550 nm for both p- and s-components. |
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