With respect to the incident laser beam with Gaussian intensity, the possibility of controlling the line focus profile by active optics system is discussed.
针对高斯型入射光强，探讨了用该系统控制激光焦线形态的可行性。
Conditions by which a circular symmetrical focussed spot can be obtained when the incident laser beam is an elliptical Gaussian profile are determined.
确定了当入射光场为椭圆高斯分布时，获得圆对称聚焦光斑的条件。
When the initial power is equal to the critical power and light beam is incident at the beam waist, the elliptical Hermite-Gaussian spatial optical soliton is obtained.
当初始功率等于这一临界功率，光束从光腰处入射时，可得到椭圆厄米高斯空间光孤子。
The profile of transmitted Gaussian beam varies with the change of incident angle and air-gap thickness.
且透射高斯光束的形状也随光的入射角以及空气隙厚度的改变发生变化；
It is found that the loss in the crystal can make a mismatched incident Gaussian beam evolve to a matched one, and then become to a steady-state bright soliton.
同时我们还发现，在一定条件下，晶体损耗能使振幅失配的高斯光束演化成匹配的高斯光束，并最终演化成稳定的明孤波。
Directly calculating expression of angular shift of a Gaussian beam reflected by absorbing medium interface is given, which can be applied to any incident Angle and does not diverge at Brewster Angle.
给出高斯入射束反射时角位移直接计算式，适用于任意入射角和反射介质有吸收的情况。
Compared with the plane wave incidence, when the Gaussian beam is incident, the center electric magnitude is smaller, but the diffraction efficiency is higher.
与平面波相比，高斯光束入射下的焦点处中心场强较小，但衍射效率较高。
Compared with the plane wave incidence, when the Gaussian beam is incident, the center electric magnitude is smaller, but the diffraction efficiency is higher.
与平面波相比，高斯光束入射下的焦点处中心场强较小，但衍射效率较高。
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