The problem of absorption of diffuse light by a 2D array of identical spherical particles is considered. The equations to solve this problem are derived on the basis of statistical approach. They can be used to match parameters of the array and the illumination system to get maximum absorption. The numerical results are presented for absorption coefficients of arrays with the imperfect triangular lattice and partially ordered structures of crystalline silicon and silver particles embedded in nonabsorbing medium, in the wavelength range 0.35 μm – 0.80 μm. The size of particles and their concentration are chosen so as to illustrate the dependence of light absorption on the angle of incidence under conditions of resonances due to the high spatial ordering of particles. The absorption coefficients of the arrays at diffuse and directional light illumination are compared.

考虑了由相同球形粒子的二维阵列吸收漫射光的问题。解决这个问题的方程是在统计方法的基础上推导出来的。它们可用于匹配阵列和照明系统的参数以获得最大吸收。数值结果显示了具有不完美三角形晶格和部分有序结构的晶体硅和银颗粒嵌入非吸收介质中的阵列的吸收系数，波长范围为 0.35 μm – 0.80 μm。选择粒子的大小和它们的浓度是为了说明由于粒子的高空间有序性，在共振条件下光吸收对入射角的依赖性。