# John J. Hopfield

> John Joseph Hopfield 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.

*Polish-American spectroscopist (1891-1953)*

**Canonical URL:** https://fame.am/person/john-j-hopfield

## Identity
- **Profile type:** Scientist ([Wikidata](https://www.wikidata.org/entity/Q39631))
- **Category:** Scientists
- **Country:** United States
- **Born:** 1891-08-08
- **Died:** 1953-01-08
- **Status:** deceased
- **Gender:** male

## Fame
- **Popularity score:** 39.0 / 100
- **Momentum:** 1.5 / 100  (trend: STABLE)
- **Historical depth:** 2.4 / 100
- **Attention shift:** 0.0 / 100
- **Source confidence:** 15.0 / 100
- **Profile completeness:** 51.0 / 100

## Sources
- [John J. Hopfield (spectroscopist)](https://en.wikipedia.org/wiki/John_J._Hopfield_(spectroscopist))
- [约翰·J·霍普菲尔德](https://zh.wikipedia.org/wiki/%E7%BA%A6%E7%BF%B0%C2%B7J%C2%B7%E9%9C%8D%E6%99%AE%E8%8F%B2%E5%B0%94%E5%BE%B7)
- [Wikidata](https://www.wikidata.org/wiki/Q17626833)

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