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建模任务
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光学设置的参数 • 焦距区域的折射率取决于材料的复折射率的实部,不考虑吸收。• 数值孔径设定为0.85。• 焦距设定为10mm。• 从焦平面到结果场的距离设置为0μm。
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数值设置 • 场大小是直接设置的,或者通过单击估计场尺寸(Estimate Field Size)按钮进行估算。• 采样点是指在空间域中对结果场进行采样。• 方向数是指角度域中全数值孔径的采样点数。• 单击生成结果(Create Result),显示电场和能量密度。
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焦平面附近的场和能量密度
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further reading
-Investigation of Idealized Vectorial Focusing Situation Using Debye-Wolf Integral
-Analyzing High-NA Objective Lens Focusing