Article | REF: R1850 V2

Mechanical measurements using optical methods

Authors: Fabrice BRÉMAND, Mario COTTRON, Pascal DOUMALIN, Jean-Christophe DUPRÉ, Arnaud GERMANEAU, Valéry VALLE

Publication date: June 10, 2011

You do not have access to this resource.
Click here to request your free trial access!

Already subscribed? Log in!


Français

6. Interferometry

6.1 Interference phenomenon

Light interference is characterized by the observation of alternately dark and bright bangs in the area common to two beams. This phenomenon is only visible under certain conditions when the light waves are coherent in time and space. In practice, this means using a laser source that is considered coherent. To take advantage of this phenomenon, a beam of wavelength λ is split in two. By recombining these beams at an angle α, the bangs observed are a function of the optical path difference between the two (figure 29 ).

You do not have access to this resource.

Exclusive to subscribers. 97% yet to be discovered!

You do not have access to this resource.
Click here to request your free trial access!

Already subscribed? Log in!


The Ultimate Scientific and Technical Reference

A Comprehensive Knowledge Base, with over 1,200 authors and 100 scientific advisors
+ More than 10,000 articles and 1,000 how-to sheets, over 800 new or updated articles every year
From design to prototyping, right through to industrialization, the reference for securing the development of your industrial projects

This article is included in

Mechanical and dimensional measurements

This offer includes:

Knowledge Base

Updated and enriched with articles validated by our scientific committees

Services

A set of exclusive tools to complement the resources

Practical Path

Operational and didactic, to guarantee the acquisition of transversal skills

Doc & Quiz

Interactive articles with quizzes, for constructive reading

Subscribe now!

Ongoing reading
Interferometry