红外与激光工程, 2020, 49 (6): 20200048, 网络出版: 2020-09-21
近红外波段偏振无关型反射超透镜的设计 
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Design of polarization-independent reflective metalens in near infrared waveband
图 & 表
图 1.
Fig. 1. Schematic of proposed metalens. (a) Fragment; (b) Cross section view ; (c) Top view of proposed metalens
图 2.
Fig. 2. Phase shift and reflectance of reflected wave of (a) x -polarization incidence and (b) y -polarization incidence
图 3.
Fig. 3. Proposed metalens working for one focus. (a) Relationship between the position x and radius of each unit for x -polarization; (b) Simulated Poynting vector distributions for metalens for x -polarization; (c) Intensities of the focusing spots along x direction for x -polarization; (d) Relationship between position x and the radius of each unit for y -polarization; (e) Simulated Poynting vector distributions for the metalens for y -polarization; (f) Intensities of the focusing spots along the x direction for y -polarization
图 4.
Fig. 4. Simulated Poynting vector distributions for the metalens with incidence wavelength of (a) 650 nm, (b) 700 nm, (c) 750 nm, (d) 900 nm, (e) 850 nm
图 5.
Fig. 5. Intensities of the focusing spots along the x direction with the incidence wavelength of (a) 650 nm, (b) 700 nm, (c) 750 nm, (d) 850 nm, (e) 900 nm
图 6.
Fig. 6. Proposed metalens working for daul focus. (a) Relationship between the position x and the radius of each unit; (b) Simulated Poynting vector distributions for the metalens; (c) Intensities of the focusing spots along the x direction
张玉慧, 杨博伟, 李轶庭, 赵元埴, 付跃刚. 近红外波段偏振无关型反射超透镜的设计[J]. 红外与激光工程, 2020, 49(6): 20200048. Zhang Yuhui, Yang Bowei, Li Yiting, Zhao Yuanzhi, Fu Yuegang. Design of polarization-independent reflective metalens in near infrared waveband[J]. Infrared and Laser Engineering, 2020, 49(6): 20200048.
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