[14] Wang Y, Xuan X F, Zhu L et al. Multilayer rectangular broadband metamaterial absorber[J]. Acta Optica Sinica, 40, 1523001(2020).
[15] Zhang C, Xue W R, Chen Y F et al. Ultra-broadband solar absorber based on titanium nitride and titanium dioxide[J]. Acta Optica Sinica, 40, 2124002(2020).
[16] Wu T S, Wang X Y, Zhang H X et al. Ultra-broadband perfect absorber based on multilayered Zr/SiO2 film[J]. Acta Optica Sinica, 41, 0516001(2021).
[25] Sun D W, Li C H, Yi L J et al. High absorption broadband solar energy absorber based on two-dimensional photonic crystal[J]. Acta Optica Sinica, 41, 0516002(2021).
[29] Palik E D[M]. Handbook of optical constants of solids(1985).