Physics: Principles and Problems
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Chapter 19: Diffraction and Interference of Light
Wave Optics
This page offers a review of wave optics, including Huygens' Principle, Young's double-slit experiment, diffraction grating, and superposition. Why does superposition require a wave description rather than a ray description?

Electromagnetics - Spotlight on Christian Huygens
Here is a short biography of Christian Huygens with links back to other pages on the nature of electromagnetics and light. Describe how Huygens tried to estimate the distance to the stars.

Diffraction & Interference
Visit this site for diagrams and explanations of the concepts of diffraction and interference. What is a Poisson spot and why is it produced?

Iridescent Clouds
Visit this site to see pictures of an iridescent cloud and a review of light, diffraction, and theories of optics. Describe some everyday examples of diffraction.

Measurement of the Wavelength of Light Using a Ruler
This is a very quick and simple experiment that you can do to measure the wavelength of light using a ruler as the source of interference. Try it with your teacher's supervision.

A Brief History of Holography
This page details the history and development of holography. How were holograms refined over the decades?

About Holograms - How a Hologram Is Made

Visit this site for an explanation of how holograms are made. Listen to the introduction audio file and view the samples of 3D images. How is holography different from conventional photography?

Hand-Drawn Holograms
Here is an inexpensive experiment on how to make your own simple holograms without the use of lasers. Try this out!



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Physics: Principles and Problems