利用菲涅耳基尔霍夫衍射积分和非线性近轴波动方程，在远场近似及光学薄近似条件下，得出了位相调制产生“热像”出现的位置及强度满足的解析关系。
According to the Fresnel-Kirchhoff diffraction integral and nonlinear paraxial wave equation, we derive the functional relationship of the intensity of hot image and its location.
使用基尔霍夫衍射积分公式和菲涅耳衍射积分公式对高斯光束通过方孔光阑的衍射进行了研究。
The diffraction of Gaussian beams at an square aperture is studied based on the Kirchhoff and Fresnel diffraction integrals.
同时，由透射光场的格林函数积分得出了基尔霍夫近似下光场的表达式。
We also obtain the expression for the transmissive light waves from the Green 's-function integral in the case of Kirchhoff's approximation.
得出积分形式的基尔霍夫第二定律，且导出四个夏阻抗的统一表达式和一个积分形式的电容特性公式。
Not only Kirchoff's second law integral form can be obtained but also an unified expression of four complex impedances a characteristic formula of capacitance in integral form can he derived thereby.
得出积分形式的基尔霍夫第二定律，且导出四个夏阻抗的统一表达式和一个积分形式的电容特性公式。
Not only Kirchoff's second law integral form can be obtained but also an unified expression of four complex impedances a characteristic formula of capacitance in integral form can he derived thereby.
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