PPT-Diffraction I

Physics 2415 Lecture 37 Michael Fowler UVa Todays Topics Michelsons interferometer The Michelson Morley experiment Singleslit diffraction Eye of a fly Angular resolution Michelson Interferometer. 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). Guanghui Zhu. Instrument Report:. Contents. Diffraction Mechanism. C. onstruction . of . the . Diffractometer. Applications . of . XRD. Data . A. nalysis . and . Explanation. 2D XRD. XRD Simulation. Diffraction . 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. Presented by. :. Panos. Economou. P.E. . Mediterranean Acoustics Research and Development. , Cyprus. . Panagiotis. . Charalampous. . P.E. Mediterranean Acoustics Research and Development, . Cyprus. deposition . activities . . of . the . crystallographic . community . .  . John R . Helliwell. and Brian McMahon. This Session . Includes several major databases encompassing many fields of the . Zone plate. Laser-beam . diffraction. A lens transforms a Fresnel . diffraction problem to a . . Fraunhofer. diffraction problem.. The lens as a Fourier transformer. Diffraction gratings & spectrometers. Jonathan Cowen. Swagelok . Center for the Surface Analysis of Materials. Case School of Engineering. Case Western Reserve University. . October 27, 2014. . . Outline. X-ray Diffraction (XRD). History and background. 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.. 36.02 . Describe an experiment that demonstrates the Fresnel bright spot.. Data Analysis. Scott A Speakman, Ph.D.. Center for Materials Science and Engineering at MIT. speakman@mit.edu. http://prism.mit.edu/xray. . An X-ray diffraction pattern is a plot of the intensity of X-rays scattered at different angles . Powder . Diffraction . Clarina R. dela Cruz. Quantum Condensed Matter Division. Neutron Sciences Directorate. Oak Ridge National Laboratory. Neutron Wavelength (Å). Amorphous. Materials. Porous. Media. Sitan. Chen. Ankur. . Moitra. MIT. MIT. Main Takeaway. : Insights from unsupervised learning can shed new light on fundamental problems in optics.. OUTLINE. Introduction. Fraunhofer. Diffraction. Debate about Diffraction Limit. 6-x. Au. x. system hosts the first known example of an elastic quantum critical point. Neutron and x-ray diffraction measurements were performed to study the structural properties as a function of temperature and Au-composition. First principle calculations confirm that the phase transition is driven by an elastic instability and is independent of electronic properties. Heat capacity measurements indicate the presence of quantum fluctuations at the critical composition. Michael Fowler, . UVa. Today’s Topics. Multi-slit interference. The diffraction grating: spectra. Waves and particles, more diffraction. Radio astronomy. Light Intensity Pattern from Two Slits. We have two equal-strength rays, phase shifted by. . CD/DVD drive. Image top. : . http://en.wikipedia.org/wiki/File:Dismdvd.. jpg. Image bottom: . http://. commons.wikimedia.org. /wiki/. File:DVD_querschnitt.svg. (. Creative Commons license). How does a CD/DVD store data?.