Photonics/Produtos/Fotônica/Kits educacionais/LUHS/PE-0600 Optical Interferometer

PE-0600 Optical Interferometer

In 1881 Albert Michelson used an interferometer to successfully disprove the theory of a universal ether that existed till then. Later on, he determined the length of the basic meter in units of light wavelengths with this set-up. Still, the use of interferometers in performing technical length measurements only reached significance after the discovery of the laser as a coherent light source. Today, high precision length measuring instruments have become an important tool for many areas of the machine building industry.

The Michelson interferometer commonly uses one moveable mirror which is attached to the object for which a path length measurement on nm scale is performed. The Mach-Zehnder interferometer has no moving parts and the  operation is based on the retardation of one beam with respect to the other by changes of the index of refraction of the probe medium.

This experiment provides both, a Michelson and a Mach-Zehnder interferometer. The Mich­elson interferometer is used to demonstrate the classical interference patterns. For the Mach-Zehnder interferometer an evacuable tube is inserted into one of the beam paths and the interference pattern visualizes the changes of the index of refraction. The measurement of the index of refraction of air as a function of the pressure is made by using the vacuum pump.

Entre em contato
Fale conosco
Fale conosco
+ 55 11 2839-3209
SUPORTE TÉCNICO 100% especializado

SUPORTE TÉCNICO

100% especializado

Veja outros produtos

PE-0900 Diffraction Grating

Joseph von Fraunhofer, the investigator of the solar lines, invented the diffraction grating in 1821. This optical element showed a much higher dispersion than any [...]

Mais Detalhes

PE-1600 Iodine Molecular Spectroscopy

Molecular spectroscopy is one of the most important technologies to identify molecules in science, chemistry, biology and even in security applications. Precision [...]

Mais Detalhes

PE-0300 Reflection and Transmission

Reflection of light on surfaces is a familiar phenomenon of daily life. Therefore it is no surprise that the reflection law is one of the well known optical laws [...]

Mais Detalhes

PE-0100 Double Refraction of Light

Double Refraction and Malus’ Law A green laser pointer (3) is used as light source. In a first experiment the polarisation of the probe laser (3) is determined. [...]

Mais Detalhes

Inscreva-se em nossa newsletter

e receba conteúdos especiais da GEP