Michelson Interferometer

Michelson Interferometer

Michelson interferometer is a unique setup for the demonstration of interferometry. Michelson interferometer was used in famous Michelson-Morley experiment to show the constancy of speed of light and evidence of special relativity. The interference pattern is observed by splitting a beam of light into two paths, bouncing the beams back by mirrors and recombining them.
The different paths may be of different lengths or composed of different materials to create alternating interference fringes.The setup can be used with different types of sources like He-Ne LASER, Diode LASER.
Scope of Learning.
Study of understand Two Beam Interferometry using Michelson Interferometer.
Study of generate circular fringe pattern.
Study of calculate the wavelength of the given light source.
Base                             : Machined MS base with rubber sheet attached at bottom to reduce vibration.
Micrometer
Least count                 :  0.001 mm
Range                           :  0-25 mm
Beam Splitter
Type                              :  Cubic
Size (mm)                    :  15 x 15 x 15
R%/T%                          :  50 / 50
Flatness                       :  ë/4(at 632nm)
MirrorType                   :  Circular
Diameter (mm)           :  25 (5 mm thick)
Second Mirror             :  Fixed on Beam Splitter
LASER
Type                              :  Diode LASER (Battery operated)
Wavelength                  :  630nm
Optional
A) He-Ne LASER (630nm) with Power Supply 2mW