提出了一种基于立体舒适度的双目图像感知距离估计方法.首先，推导双目立体图像的立体深度；然后进行主观实验获取实际人眼感知到的深度，分析其与立体深度间的差异；最后，将立体舒适度作为生理因素，建立感知距离、立体深度与视觉舒适度之间的关联关系，并得出感知距离的计算模型.在IVY公共数据集上进行实验验证，结果表明：当视觉舒适度值较高时，模型预测值的平均绝对值误差与均方根误差较主观评测值分别减少了0.004 9、0.007 3；而当视觉舒适度值较低时，平均绝对值误差与均方根误差分别减少了0.072 1、0.059 4.本模型结果更接近人类主观感知到的深度.

研究了背电极金属Al膜上二维ZnO：Al光栅的制备及其反射光谱特性.在厚度为300 nm的Al膜上溅射80 nm ZnO：Al薄膜，旋涂AZ5206光刻胶，用波长为325 nm的激光进行光刻制作光栅掩模.采用溶脱-剥离法在Al衬底上制备周期（624~1 250 nm）和槽深（100~300 nm）可独立调控的ZnO：Al二维光栅.表面形貌采用原子力显微镜和扫描电镜观察，反射光谱用带积分球的分光光度计测试，双向反射分布函数用散射仪测量.结果表明，300 nm Al膜上织构二维ZnO：Al光栅背电极结构，当光栅槽深为228 nm，周期从624 nm增加到986 nm时，背电极总反射率、漫反射率以及雾度均随光栅周期增大而显著增加，而当周期从986 nm增加到1 250 nm时，总反射率、漫反射率以及雾度略有增加.双向反射分布函数测试结果进一步证实了上述实验结果，即随着周期增大，漫反射峰值越大，衍射峰个数也增多.提示背反电极上槽深为228 nm、周期为986 nm的二维ZnO：Al光栅具有较好的散射效果，其中漫反射占总反射的百分比为45%.

Coulomb potential may induce a significant angular offset to the two-dimensional photoelectron momentum distributions for atoms subject to strong elliptically polarized laser fields. In the attoclock experiment, this offset usually cannot be easily disentangled from the contribution of tunneling delay and poses a main obstacle to the precise measurement of tunneling delay. Based on semiclassical calculations, here, we propose a method to extract the equivalent temporal offset induced solely by Coulomb potential (TOCP) in an attoclock experiment. Our calculations indicate that, at constant laser intensity, the TOCP shows distinctive wavelength dependence laws for different model atoms, and the ratio of the target atom’s TOCP to that of H becomes insensitive to wavelength and linearly proportional to (2I_p) ^3/2, where I_p is the ionization potential of the target atom. This wavelength and I_p dependence of TOCP can be further applied to extract the Coulomb potential influence. Our work paves the way for an accurate measurement of the tunneling delay in the tunneling ionization of atoms subject to intense elliptically polarized laser fields.