5.Evaluations Homework,quiz and examinations Chapter 4 Diffraction 1.Teaching objectives To learn the concepts of light diffraction,as well as the mathematical description of 2.Focus and/or Difficulties Mathematical description of Frauenhofer diffractions for slits/aperture.The difference and relationship between light The understanding of: 3.Teaching contents General considerations of diffraction:The Huygens-Fresnel principle:Frauenhofer(far-field) and Fresnel(near-field)diffraction,Fraunhofer diffraction-The single-slit diffraction;The double-sit diffraction,Multi-sit diffraction,Conditions of principal 1 ma ma,minima,subsidiar maxima;Diffraction grating.Grating equation;Resolving power,X-ray diffraction;The Rectangular aperture diffraction,The circular aperture diffraction,Resolution of imaging systems, Nondiffracting beam;Fresnel Diffraction;Circular aperture/obstacle;Fresnel zone plates;The vibration curve:Cornu spiral:Babinet's Principle 4.Teaching method Lecture PPT presentation;Heuristic question;Interaction with students 5.Evaluations Homework.quiz and examinations Chapter 5 Polarization 1.Teaching objectives To learn mathematical description and intuitive understanding of different kinds of 2.Focus and/or Difficulties Mathematical description and intuitive understanding of different kinds of polarizations;The understanding of concepts of birefringent crystals,The difference and relationship between o-ray and-ray,The mechanism and functi nalities kinds of birefringent polarizers 3.Teaching contents The Nature of polarized light,Linear polarization:Circular polarization.Elliptical polarization:Natural light:Polarizers:Malus's law:Scattering and polarization;Polarization by 5 5 5. Evaluations Homework, quiz and examinations Chapter 4 Diffraction 1. Teaching objectives To learn the concepts of light diffraction, as well as the mathematical description of Frauenhofer interference for slits/aperture; To learn the limitation of imaging systems caused by diffraction; To learn the basic concepts of Fresnel diffraction 2. Focus and/or Difficulties Mathematical description of Frauenhofer diffractions for slits/aperture; The difference and relationship between light interference and diffraction; The understanding of Fresnel zone plates； The understanding of the limitation of imaging systems caused by diffraction 3. Teaching contents General considerations of diffraction; The Huygens–Fresnel principle; Frauenhofer (far-field) and Fresnel (near-field) diffraction; Fraunhofer diffraction — The single-slit diffraction; The double-slit diffraction; Multi-slit diffraction; Conditions of principal maxima, minima, subsidiary maxima; Diffraction grating; Grating equation; Resolving power; X-ray diffraction; The Rectangular aperture diffraction; The circular aperture diffraction; Resolution of imaging systems; Nondiffracting beam; Fresnel Diffraction; Circular aperture/obstacle; Fresnel zone plates; The vibration curve; Cornu spiral; Babinet’s Principle 4. Teaching method Lecture PPT presentation; Heuristic question; Interaction with students 5. Evaluations Homework, quiz and examinations Chapter 5 Polarization 1. Teaching objectives To learn mathematical description and intuitive understanding of different kinds of polarizations; To learn the polarization properties in light scattering and reflection; To learn the light propagation in birefringent crystals and their applications in controlling light polarization 2. Focus and/or Difficulties Mathematical description and intuitive understanding of different kinds of polarizations; The understanding of concepts of birefringent crystals; The difference and relationship between o-ray and e-ray; The mechanism and functionalities of different kinds of birefringent polarizers 3. Teaching contents The Nature of polarized light; Linear polarization; Circular polarization; Elliptical polarization; Natural light; Polarizers; Malus’s law; Scattering and polarization; Polarization by