PPT-Diffraction from a Single Slit

Thought Question Consider a single slit diffraction pattern At the first dark fringe above the middle bright fringe what is the phase difference between the contribution to the field from the topmost and bottommost edges of the slit. ’. s Experiment. 2. Coherence. 35-. Two sources to produce an interference that is stable over time, if their light has a . phase. . relationship. that does not change with time: . E. (. t. )=. E. Textbook sections 28-4 – 28-6. Physics 1161:. . . Lecture 21. Recall. Interference . (at least 2 coherent waves). Constructive (full wavelength difference). Destructive (½ wavelength difference). 4. Diffraction. Prepared by Vince Zaccone. For Campus Learning Assistance Services at UCSB. Prepared by Vince Zaccone. For Campus Learning Assistance Services at UCSB. Diffraction. When light encounters an obstacle it will exhibit diffraction effects as the light bends around the object or passes through a narrow opening. . Homework . for tomorrow…. . (Ch. 22, CQ5, Probs. . 16 . & 18). CQ3: a) decreases b) increases c) decreases d) . 1.0 x 10. -6. m. 22.2: 450 nm . . 22.5: 3.6 x 10. -4. m. 22.8: 500 . Introduction to Physics II. . Class 5 – . Outline:. Ch. . 22, . sections . 22.1-22.4. (Note we are skipping sections 22.5 and 22.6 in this course). Light and Optics. Double-Slit Interference. The Diffraction Grating. Introduction to Physics II. . Class 5 – . Outline:. Ch. . 22, . sections . 22.1-22.4. (Note we are skipping sections 22.5 and 22.6 in this course). Light and Optics. Double-Slit Interference. The Diffraction Grating. Wave Optics. The wave nature of light is needed to explain various phenomena. Interference. Diffraction. The . particle nature of light was the basis for ray (geometric) . optics. Light waves interfere with each other much like mechanical waves do. Diffraction of light when two fingers brought close together . infront of a light source . Diffraction by razor blade when illuminated by intense blue light . “light is never known to follow . crooked passages nor to . By Cade Grigsby. 1. What can X-ray diffraction tell us?. Structure. Bonds. Length. Type. Arrangement. Geometry of crystal. Picture. Electron density map. Diffraction. Angle. Intensity. 2. From X-Rays to Structure. Chapter. 36. Copyright © 2014 John Wiley & Sons, Inc. All rights reserved.. 36-1. Single-Slit Diffraction. 36.01 . Describe the diffraction of light waves by a narrow opening and an edge, and also describe the resulting interference pattern.. What is . Huygen’s. Principle?. What is . diffraction. ? How does it occur?. What happens to:. the frequency of a wave during diffraction? . The wavelength? . The amplitude?. Through what size opening would you expect to see the most diffraction of a wave?. 26, 27, 28. Diffraction of Light. Key Points. Diffraction by a Single Slit. Diffraction in the Double-Slit Experiment. Limits of Resolution. Diffraction Grating and Spectroscopy. Polarization. References. In Chapter 35, we saw how light beams passing through different slits can interfere with each other and how a beam after passing through a single slit flares-diffracts- in Young's experiment. Diffraction through a single slit or past either a narrow obstacle or an edge produces rich interference patterns. The physics of diffraction plays an important role in many scientific and engineering fields.. Learning Goals for Chapter 36. Diffraction. vs. . Interference. Single-slit vs. Multiple-slit diffraction. Calculating intensity . at . points . in . single-slit pattern. .. X. -ray . diffraction reveals .