John J. Hopfield (spectroscopist)

John Joseph Hopfield (8 August 1891 – 8 January 1953) was a Polish-American spectroscopist, discoverer of the Hopfield bands of oxygen and co-discoverer of the Lyman-Birge-Hopfield bands of nitrogen. Hopfield's major research pursuits included vacuum ultraviolet spectroscopy and solar ultraviolet spectroscopy. He was well known in these disciplines. Hopfield published frequently and produced several patents.

John J. Hopfield (spectroscopist)

John Joseph Hopfield (8 August 1891 – 8 January 1953) was a Polish-American spectroscopist, discoverer of the Hopfield bands of oxygen and co-discoverer of the Lyman-Birge-Hopfield bands of nitrogen. Hopfield's major research pursuits included vacuum ultraviolet spectroscopy and solar ultraviolet spectroscopy. He was well known in these disciplines. Hopfield published frequently and produced several patents.