Lecture-room interference demo using a glass plate and a laser beam focused on it

We describe a simple case of non-localized interference produced with a glass plate and a laser beam focused on it. The proposed setup for observing interference is compact when semiconductor lasers are employed, and it is well suited for demonstration and comparison of interference in reflected and...

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Bibliographic Details
Published in:European journal of physics 2010-07, Vol.31 (4), p.801-809
Main Authors: Ageev, Leonid A, Yegorenkov, Vladimir D
Format: Article
Language:English
Subjects:
College Science
Communication, education, history, and philosophy
Demonstrations (Educational)
Exact sciences and technology
General physics
Graduate Students
Lasers
Optics
Physics
Physics literature and publications
Science Activities
Science Instruction
Surveys and tutorial papers, resource letters
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Summary:We describe a simple case of non-localized interference produced with a glass plate and a laser beam focused on it. The proposed setup for observing interference is compact when semiconductor lasers are employed, and it is well suited for demonstration and comparison of interference in reflected and transmitted light in a large lecture-room. This paper is intended for graduate students as well as for those who teach courses in optics accompanied with cost-effective demos. (Contains 5 figures.)
ISSN:0143-0807
1361-6404
DOI:10.1088/0143-0807/31/4/009