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Adding local short description: "American physicist", overriding Wikidata description "American physicist, spectroscopy" |
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{{Short description|American physicist}}
{{Infobox scientist
| name = August Herman Pfund
| image =
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| caption =
| birth_date = {{Birth date|1879|12|28|mf=y}}
| birth_place = [[Madison,
| death_date = {{death date and age|1949|1|4|1879|12|28|mf=y}}
| death_place =
| residence =
| citizenship =
| nationality =
| ethnicity =
| field = {{hlist|[[Physics]]
| work_institution = [[Johns Hopkins University]]
| alma_mater = {{hlist|[[Johns Hopkins University]]
| doctoral_advisor = [[Robert W. Wood]]
| doctoral_students =
| known_for = {{hlist|[[Pfund line]]
| author_abbreviation_bot =
| author_abbreviation_zoo =
| prizes = {{ubl|[[The Franklin Institute Awards|Edward Longstreth Medal]] (1922)|[[Frederic Ives Medal]] (1939)}}
| footnotes =
}}
'''August Herman Pfund'''
==Early life==
Pfund was born in [[Madison,
==Career==
Both Wood and Pfund left Wisconsin for [[Johns Hopkins University]] in 1903. From 1903 to 1905 Pfund was a Carnegie research assistant and continued to work under Wood. In 1906 Pfund earned his Ph.D. in physics and was a Johnston scholar from 1907 to 1909. He remained at Hopkins for the remainder of his career, eventually becoming a full professor and later chair of the physics department. From 1943 to 1944 Pfund served as the president of the [[Optical Society of America]].
Within the [[hydrogen spectral series]] Pfund discovered the fifth series, where an electron jumps up from or drops down to the fifth fundamental level. This Series is known as the "[[hydrogen spectral series#Series|Pfund series]]
==See also==
*[[Optical Society of America#OSA presidents|Current and past presidents of the Optical Society of America]]
*[[Medieval sunstone]]
== References ==
<references />
==
* Dr. John Andraos, [https://web.archive.org/web/20170808210417/http://www.chem.yorku.ca/NAMED/PDF-FILES/con2.pdf ''Named Concepts in Chemistry (L-Z)''], [[York University]], 2001▼
* [http://www.opticsinfobase.org/josa/journal/josa/20prez.cfm Articles Published by early OSA Presidents] Journal of the Optical Society of America▼
▲* Dr. John Andraos, [http://www.chem.yorku.ca/NAMED/PDF-FILES/con2.pdf ''Named Concepts in Chemistry (L-Z)''], [[York University]], 2001
* Pelletier, Paul A. (ed.), Prominent Scientists: An index to collective biographies, 2nd ed., Neal-Schuman Publishing, Inc.: New York, 1985 (citations only)
* Cattell, J.M.; Cattell, J. American Men of Science, 6th ed., The Science Press: New York, 1938
* Journal of the Optical Society of America, 39:4 (April, 1949) 325. Obit.
==External links==
▲* [http://www.opticsinfobase.org/josa/journal/josa/20prez.cfm Articles Published by early OSA Presidents] {{Webarchive|url=https://web.archive.org/web/20150320010027/http://www.opticsinfobase.org/josa/journal/josa/20prez.cfm |date=2015-03-20 }} Journal of the Optical Society of America
{{Authority control}}
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[[Category:1949 deaths]]
[[Category:American physicists]]
[[Category:University of Wisconsin–Madison College of Letters and Science alumni]]
[[Category:Spectroscopists]]
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