Physics 111: Holography (HOL) Physics 111 Advanced Laboratory. Professor Sumner Davis This video accompanied the Holography Experiment, providing students with an introduction to the theory, apparatus, and procedures. This experiment is no longer in use in the Physics 111 lab. A conventional photograph records the focused image of an object on a photographic film or plate. A hologram is a photographic recording of an optical interference pattern, in this case, from a laser. The amplitude and phase of light coming from the object are stored in the hologram. The phase information enables us to reconstruct the original wavefront and hence obtain a three-dimensional image in space. Viewing a hologram is like peering through a portal into a three-dimensional space in which you can see a three-dimensional image, so real that you want to reach out and touch it. This experiment uses a 658nm diode laser as a source of coherent light, which irradiates the objects, and also provides a reference beam of uniform amplitude and phase. There are two types of holograms, both of which you will make in this lab. One is the transmission type, which needs the laser light to produce a reconstructed image. The other is a reflection hologram, which can be seen with ordinary white light from a bulb or from the sun http://advancedlab.org
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Channels: Physics (General)
Tags: Physics 111: Holography (HOL)
Uploaded by: berkeleyphy111 ( Send Message ) on 19-09-2012.
Duration: 26m 23s
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Lec 2 - Physics 111: Atomic Physics (ATM) Part 2. Zeeman Effect
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