Magnetostriction with the Michelson interferometer
With the aid of two mirrors in a Michelson arrangement, light is brought to interference. Due to the magnetostrictive effect, one of the mirrors is shifted by variation in the magnetic field applied to a sample and the change in the interference pattern is observed.
- See that magnetic fields can change the geometry of objects
- Use a Michelson interferometer to measure quantitatively this most subtle effect
- Set up the instrument by yourself from separate components
Lens, mounted, f +20 mm
Optical base plate with rubber feet
He/Ne Laser, 5 mW with holder
Magnetic foot for optical base plate
Adjusting support 35 x 35 mm
Surface mirror 30 x 30 mm
Holder for diaphragms and beam splitters
Lensholder for optical base plate
Faraday modulator for optical base plate
Rods for magnetostriction,set
Beam splitter 1/1, non polarizing
Screen, white, 150×150 mm
Digital multimeter 2005
Connecting cord, 32 A, 500 mm, blue
Flat cell battery, 9 V
PHYWE power supply, universal DC: 0…18 V, 0…5 A / AC: 2/4/6/8/10/12/15 V, 5 A
- Construction of a Michelson interferometer using separate optical components.
- Testing various ferromagnetic materials (iron and nickel) as well as a non-ferromagnetic material (copper), with regard to their magnetostrictive properties.
- Interference
- Wavelength
- Diffraction index
- Speed of light
- Phase
- Virtual light source
- Ferromagnetic material
- Weiss molecular magnetic fields
- Spin-orbit coupling