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White Light Interference Fringes with a Thick Glass Plate in One Path

Birchby, W. N. (1924) White Light Interference Fringes with a Thick Glass Plate in One Path. Proceedings of the National Academy of Sciences of the United States of America, 10 (11). pp. 452-457. ISSN 0027-8424. https://resolver.caltech.edu/CaltechAUTHORS:20131122-103956234

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Abstract

The object of this paper is to describe and account for certain interference phenomena which are observed with white light, when a thick plate of glass, or other dispersive medium, is placed in the path of one of the beams in the Michelson interferometer. The mirrors are adjusted in sodium light for circular fringes, and the paths made equal. The glass plate is then inserted in one of the paths, and that path is shortened, or the other path lengthened, by moving the mirror, till the sharpest sodium maximum is reached. The path containing the glass plate will be shorter than the other by about one-half the thickness of the plate. If white light is now substituted, the fringes should be in the field. It is better before throwing on the white light, to re-adjust the mirrors for perfect parallelism of the two beams, which may be known by the almost startling distinctness of the sodium fringes in this position. It will be easier if the first trials are made with a plate not more than 5 mm. thick.


Item Type:Article
Related URLs:
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http://www.jstor.org/stable/84594PublisherArticle
Additional Information:© 1924 National Academy of Sciences. Published November 15, 1924; Communicated September 10, 1924. A brief abstract of this paper was presented to the American Physical Society, September 1923. In the meantime Sethi (Phys. Rev., Jan. 1924, pp. 69-74) observed the same phenomenon independently, though his theory is different from mine. The writer wishes to acknowledge the kindness and patience of Dr. Paul S. Epstein in reading the manuscript critically and making many valuable suggestions.
Issue or Number:11
Record Number:CaltechAUTHORS:20131122-103956234
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20131122-103956234
Official Citation:White Light Interference Fringes with a Thick Glass Plate in One Path W. N. Birchby Proceedings of the National Academy of Sciences of the United States of America , Vol. 10, No. 11 (Nov. 15, 1924), pp. 452-457 Published by: National Academy of Sciences Article Stable URL: http://www.jstor.org/stable/84594
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:42652
Collection:CaltechAUTHORS
Deposited By: John Wade
Deposited On:22 Nov 2013 19:14
Last Modified:03 Oct 2019 06:00

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