Rong Tian, Yi Li, Zhimin Liu, Jianzhong Zhou, Jin Liu, Lina Fan, Wenqing Zhao, Junxian Li, Xin Zhang, Chuang Peng, Yuda Wu, Xiaohua Wang, Baoying Fang. Broadband NIR absorber based on square lattice arrangement in metallic and dielectric state VO2[J]. Chinese Optics Letters, 2020, 18(5): 052601
- Chinese Optics Letters
- Vol. 18, Issue 5, 052601 (2020)
Fig. 1. (a) Schematic of the linear array absorber. (b) Schematic of the cross array absorber.
Fig. 2. Absorption spectra of designed structures.
Fig. 3. (a) Temperature field distribution in the cross array absorber for
Fig. 4. Absorption spectra of the cross array absorber for different offset distances.
Fig. 5. Absorption spectra of the cross array absorber at different polarization angles: (a) at a normal incidence; (b) at an incident angle of 27°.
Fig. 6. Absorption spectra of the cross array absorber at different incident angles: (a) under TM polarization; (b) under TE polarization.
Fig. 7. Three-dimensional (3D) FDTD simulation of the electromagnetic field distribution. (a) The electric field distribution in the
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