| 1. | The preceding chapter, for the most part, dealt with paraxial theory as applied to thin spherical lens systems .
前一章讨论的基本上是应用于薄球面透镜系统的傍轴理论。 |
| 2. | Analyzing the axial intensity of plane waves diffracted nonparaxially by a small circular aperture
平面波经小圆孔非傍轴衍射的轴上光强解析分析 |
| 3. | Then the influence of the spectrum property on the non - paraxial property of the pulsed beam is discussed
并对脉冲频谱特性对其非傍轴特性的影响进行了讨论。 |
| 4. | In chapter 2 , we discuss the optics self - focusing in beam propagation . the early research was based on the scalar approximation and paraxial approximation
早期的自聚焦研究是在考虑了傍轴近似和标量场近似的前提下得到的。 |
| 5. | Abstract : the intensity distribution in young ' s double pinhole interfer ence expriment is numerically calculate , and compared with the result of the nea r - axis approximation
文摘:数值计算了杨氏双孔干涉的光强分布，与傍轴近似条件下的结果作了比较，并以图形的方式显示了干涉条纹的形状 |
| 6. | Chapter 4 : in this chapter the influence of the spectrum property on the non - paraxial property of the pulsed beam is discussed : firstly the influence of the spectrum property on the paraxial approximation of pulsed beam is analysed
第四章：在这一章里讨论了脉冲频谱性质对其非傍轴特性的影响。 |
| 7. | In the case of ultrashort laser pulse , the effect of finite pulse length is anlyzed , and self - steepening in the front of the pulse will occur when only relativistic nonlinearity is considered
同时，对于超短脉冲传输，分析了有限脉冲宽度效应对傍轴方程的修正，当只考虑相对论性非线性效应时将会引起激光脉冲前沿自陡峭。 |
| 8. | The corresponding numerical investigations are carried out and show that for the pulses as short as sub - cycle , svea will cause the spatial singularity for both transverse and longitudinal components of the light field
在第三节里，我们考虑了超短脉冲光束在傍轴近似下的矢量传输特性，并且得到了横向场和纵向场传输的积分解。 |
| 9. | In fact , the traditional definition of the light intensity is only suitable to the paraxial - scalar diffraction light field , not to the non - paraxial scalar diffraction light field and vector diffraction light field
考虑到光场能流密度的矢量特性，这种方法具有很大的局限性，只适用于描述傍轴标量光场，而不适用于对非傍轴标量光场的描述。 |
| 10. | Chapter 1 : the development of the investigation about the free - propagation of ultra - short pulsed beam is introduced , and the necessity of the investigation about the non - paraxial propagation of the ultra - short pulsed beam in free space is discussed
第一章：本章回顾了超短脉冲光束传输的研究进展并讨论了超短脉冲光束非傍轴传输研究的意义。 |
