John J. Hopfield (spectroscopist)

John J. Hopfield
Born
Jan Józef Chmielewski

(1891-07-08)July 8, 1891
DiedJanuary 8, 1953(1953-01-08) (aged 61)
Maryland, United States
Alma materSyracuse University (A.B. 1917)
University of California, Berkeley (Ph.D. 1923)
Scientific career
Doctoral advisorE. P. Lewis
Raymond Thayer Birge

John Joseph Hopfield (born Jan Józef Chmielewski; July 8, 1891 – January 8, 1953) was a Polish-American physicist. Hopfield's published research included vacuum ultraviolet spectroscopy and solar ultraviolet spectroscopy. He was the discoverer of the "Hopfield bands" of oxygen and co-discoverer of the "Lyman–Birge–Hopfield bands" of nitrogen. For about a decade he was an industrial physicist working with technologies for fabricating glass windows, and was the inventor listed on several related patents.[1][2][3][4]

  1. ^ Birge, Raymond Thayer (1966). History of the Physics Department. University of California, Berkeley. pp. 15–18. OCLC 6494379. Birge devoted several pages of this manuscript to Hopfield.
  2. ^ Krupenie, Paul H. (1972). "The Spectrum of Molecular Oxygen". Journal of Physical and Chemical Reference Data. 1 (2): 423. Bibcode:1972JPCRD...1..423K. doi:10.1063/1.3253101.
  3. ^ Ajello, Joseph M. (March 2020). "The UV Spectrum of the Lyman-Birge-Hopfield Band System of N2 Induced by Cascading from Electron Impact". Journal of Geophysical Research: Space Physics. 125 (3). Bibcode:2020JGRA..12527546A. doi:10.1029/2019JA027546. S2CID 213340934.
  4. ^ "John Simon Guggenheim Memorial Foundation". John Simon Guggenheim Memorial Foundation. Archived from the original on 6 August 2014. Retrieved 2 August 2014.