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In 1919, he became chairman of the physics committee of the
Direction des Inventions intéressant la défense nationale (Directorate of Inventions relevant to National Defense). In 1920 he was named professor of the new chair of theoretical physics and astrophysics at the Faculty of Sciences of the
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capable of producing intense magnetic fields. Work on the magnet finally started in 1924 in the
Service des recherches et inventions at Bellevue, later the Laboratoire du magnétisme at Meudon-Bellevue, and finally the
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on 9 October 1869. His grandfather was director of the École normale (teachers' college) of Bourg, and his father, Eugène Cotton, was a mathematics professor at the college of Bourg, the institution where physicist
394:. His thesis was entitled "Research on the absorption and dispersion of light by substances capable of optical rotation". In 1900, he was appointed assistant professor as a temporary replacement for
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As a graduate student at the physics laboratory of the École normale supérieure, he then prepared his doctoral thesis in physical sciences. In this thesis he studied the interactions of
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as professor and laboratory directory, although he retained the direction of the magneto-optics laboratory at
Bellevue. Also, in 1941 he was imprisoned by the German occupiers at
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for one and a half months and was later awarded the
Rosette de la résistance. At the age of 81 years, 6 months and 7 days, he died on April 16, 1951, at
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in the chair of general physics, and at the same time became director of physics research in the faculty. In 1923 he was elected to the
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Bibliography (in French) of some 20th-century physicists. From the Centre d'initiation à l'Enseignement Supérieur (CIES) of Lyon
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Willard H.H., Merritt L.L., Dean J.A. and Settle F.A. "Instrumental
Methods of Analysis" (van Nostrand, 6th edn 1981) p.415
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262:(9 October 1869 – 16 April 1951) was a French physicist known for his studies of the interaction of light with
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he and Pierre Weiss developed the Cotton–Weiss system, based on an acoustic method, for locating enemy artillery.
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Aimé Cotton attended a lycée (high school) in Bourg and then the special mathematics program at the Lycée
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on circular dichroïsm and optical rotatory dispersion (1914). In 1917 he helped to found the
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Cotton at the Fourth
Conference International Union for Cooperation in Solar Research at
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in 1895, and defended his doctoral thesis in 1896 before the science faculty of the
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in colloïdal solutions of magnetic particles. In 1907 the two discovered the
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During this period his research dealt with the interactions of light and
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274:(ORD), or variation of optical rotation as a function of wavelength (
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in 1889, and won the physical sciences prize on graduating in 1893.
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atom and in 1907 they were able to determine the ratio of the
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of chiral molecules in organic chemistry and in biochemistry.
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bands of these substances, he found large variations of
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or differences of absorption between left and right
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270:of these molecules, he discovered large values of
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499:in his honour. Magnetic fields as high as to 7
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616:Officers of the French Academy of Sciences
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359:as a function of wavelength, now known as
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488:Institut d'optique théorique et appliquée
106:Learn how and when to remove this message
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448:near absorption lines and demonstrated
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444:Cotton then became interested in the
316:was a mathematician and academician.
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450:magnetic circular dichroism
361:optical rotatory dispersion
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497:Laboratoire Aimé-Cotton
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384:maître de conférences
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206:Cotton–Mouton effect
40:improve this article
611:French Esperantists
509:University of Paris
471:In 1913 he married
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260:Aimé Auguste Cotton
235:University of Paris
122:Aimé Auguste Cotton
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369:circular dichroism
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266:molecules. In the
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171:(1951-04-16)
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596:1951 deaths
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563:, 347(1896)
477:World War I
295:Early years
585:Categories
535:References
353:absorption
143:1869-10-09
96:March 2024
66:newspapers
403:magnetism
290:Biography
423:electron
388:Toulouse
525:Fresnes
409:on the
222:Physics
80:scholar
529:Sèvres
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349:chiral
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225:Optics
219:Fields
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