This preview shows pages 1–2. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.View Full Document
Unformatted text preview: 1 Lab 4 The Michelson Interferometer Introduction There are, in general, a number of types of optical instruments that produce optical interference. These instruments are grouped under the generic name of interferometers. The Michelson interferometer causes interference by splitting a beam of light into two parts. Each part is made to travel a different path and brought back together where they interfere according to their path length difference. You will build a Michelson interferometer and use it to observe the interference of light from a diode laser. Background- see Pedrotti^3, Sections 8-1 to 8-3, as well as Chapters 5 and 7. The Michelson Interferometer The Michelson interferometer is a device that produces interference between two beams of light. A diagram of the apparatus is shown in Fig.1. The basic operation of the interferometer is as follows. Light from a light source is split into two parts. One part of the light travels a different path length than the other. After traversing these different path lengths, the two parts of the light are brought together to interfere with each other. The interference pattern can be seen on a screen. Light from the source strikes the beam splitter (designated by S). The beam splitter allows 50 % of the radiation to be transmitted to the translatable mirror M 1...
View Full Document
- Spring '11