"Diffraction gratings" Essays and Research Papers

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    Orb Essay

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    A Brief History of Light ( by Efthymios Kallos) (edited by Mrs. John & Mr. Lefebvre) | The struggle to understand light | The main issue of the early theories of light was to resolve whether it was a wave or a particle‚ and this proved to be a difficult task. It started as a particle from the ancient Greeks‚ then it became a wave with Huygens‚ then Newton suggested a particle theory again‚ then Fresnel and others suggested a wave theory again‚ then Einstein suggested a particle theory once

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    NAME : ……………………………………………….. GROUP :………………………………………………... TUTORIAL 2 (ALPH20) WAVES WAVES BEHAVIOR 1. To demonstrate interference of light waves‚ Thomas Young allowed light from an illuminated single slit to fall on a pair of narrow closely-spaced slits. Explain: a. Why light from separate lamp bulbs can never produce an interference pattern? b. Why double slits used as above do give an interference pattern? How would the interference pattern differ

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    Holograms

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    Running head: Research Paper: HOLOGRAMS 1 Yasmine Briedj Adelphi University What do flying cars‚ time machines and holograms all have in common? They’re future technologies that the world never thought they would see brought to life. This was until holograms were created. When talking about holograms‚ the first thing that usually comes to mind is their use in the entertainment industry for things like 3D movies and recreating musical artists. But‚ holograms actually have more uses

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    Interference

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    INTEFERENCE -is the phenomenon that occurs when two waves meet while traveling along the same medium. The interference of waves causes the medium to take on a shape that results from the net effect of the two individual waves upon the particles of the medium. To begin our exploration of wave interference‚ consider two pulses of the same amplitude traveling in different directions along the same medium. Let’s suppose that each displaced upward 1 unit at its crest and has the shape

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    X-Ray Diffraction

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    X-ray fluorescence Electron Diffraction Professor: Dr. F. Razavi Lab Demonstrator: J. Korobanik Lab Partner: Adam Kober Author : Jasper D’Agostino SN : 4656534 Contents 1 Introduction 1.1 X-ray fluorescence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.2 Electron diffraction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Discussion 2.1 X-ray fluorescence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.2 Electron diffraction . . . . . . . . . . .

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    Holographic Memory

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    CONTENTS 1) INTRODUCTION 2) A) CONCEPT OF HOLOGRAPHY B) HISTORICAL ROOT C) WHAT IS HOLOGRAM 3) HOLOGRAOHIC MEMORY 4) TECHNIQUE FOR STORING DATA ON A HOLOGRAPHIC MATERIAL 5) SPATIAL LIGHT MODULATOR 6) MULTIPLEXING TECHNIQUE FOR RETREIVING DATA FROM A HOLOGRAOHIC MATERIAL 8) ERROR CORRECTION 9) TECHNICAL SPECIFICATION OF HOLOGRAOHIC DEVICE 10) A) ADVANTAGES B) LIMITATIONS 11) OBSTACLES IN DEVELOPMENT OF HOLOGRAPHIC

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    YOUNG’S DOUBLE SLIT EXPERIMENT Interference Patterns This report will be performed by a group of 3 students viz. Harleen Kaur‚ Rutvi Patel and Sandhya‚ determining the wavelength of light from a laser using a double – slit slide. The laser was shone through the double – slit such that it projected interference pattern onto the paper screen. The experiment will be repeated three times varying the distance between the slit and the screen to understand the effective relationships. The expected wavelength

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    Lab Report

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    Introduction! ! The Michelson Interferometer is commonly used to determine the wavelength of light or measure very small distances. It was invented by Albert Abraham Michelson and is commonly used in optical interferometry‚ a branch of physics involving a family of techniques one could use to extract information about waves by superimposing them. ! ! The original application of the Michelson Interferometer was to the famous Michelson-Morley experiment in 1887. Prior to Einstein’s

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    Experiment No 2 (Part 2) Single and Double Slit Diffraction Name: Prachi Chaudhary Enrollment number: Btech 2nd year #33 Date: 27th Aug 2012 Observations Wavelength of He-Ne laser is λ = 632.8 nm. Part I: Single Slit Diffraction Distance between single slit and detector is D = .739 m ( 73.9 cm ). |S.No. |Position of detector (cm) |Detector’s reading | |1. |0.021

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    XRD – X-Ray Diffraction X-ray diffraction (XRD) is a powerful non-destructive technique for characterizing crystalline materials. It provides information on structures‚ phases‚ preferred crystal orientations (texture)‚ and other structural parameters‚ such as average grain size‚ crystallinity‚ strain‚ and crystal defects. X-ray diffraction peaks are produced by constructive interference of a monochromatic beam of X-rays scattered at specific angles from each set of lattice planes in a sample. The

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