1. Chapter 19-20 Acoustic-optics & Electro-Optics 其实，也属于非线性光学

2. Review

3. 非线性的来源 • 理想模型的偏差 • 强场驱动下偏离谐振子模型 • 电子云的畸变 • 等等

4. Nonlinear Optical Media

5. The ‘P-E’ relation From Maxwell’s equations

6. The Nonlinear Wave Equation 但是，由于物质内部的屏蔽作用，在可见光波段，非线性响应非常小… 低频时(<MHz), 磁滞回线是种典型的强非线性

8. 关注点 • 二次非线性 • 自聚焦 • 四波混频 • 孤子(soliton)

9. Second-Order Nonlinear Optics

11. Second-Harmonic Generation (SHG) and Rectification

12. to maximize the SHG effìciency • the incident wave have the largest possible power P • by use of pulsed lasers with large peak power • be focused to the smallest possible area A • provide the longest possible interaction length L

13. Optical second-harmonic generation

15. Electro-Optic Effect

16. 其实，是Three-Wave Mixing

17. Frequency and Phase Matching 全部由光子参与的过程，满足。。。

18. Three-Wave Mixing Modalities

19. Wave Mixing as a Photon Interaction Process

20. 两大类可能性 可以动量匹配 不可以动量匹配

21. Non-Collinear SHG Spontaneous Parametric Downconversion (SPDC).

22. Generation of Entangled Photons • Parametric down-conversion (PDC) • twin daughter photons are produced simultaneously from a parent photon • the signal and idler photons have natural correlations in energy and momentum. • Type-I phase matching • The generated signal and idler photons have parallel polarizations. • Type-II phase matching • The signal and idler photons have perpendicular polarizations.

23. Generation of Entangled Photons Parametric down-conversion (PDC)

24. in Collinear Three-Wave Mixing

27. Tolerable Phase Mismatch and Coherence Length Lc: 几个微米 L<Lc时（比如非线性晶体的粉末），可以看到一些SHG信号

31. Quasi-Phase Matching 对非线性感应系数d做周期调制

32. 畴反转：n不变，d-d….

47. Third-Order Nonlinear Optics

48. Kerr medium

49. Thírd-HarmonícGeneratíon (THG) Optical Kerr Effect

50. Self-Phase ModulationSelf-Focusing