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Researcher · University of Missouri–St. Louis · United States

James J. O’Brien

James J. O’Brien publishes mostly in Atomic and Molecular Physics, and Optics, Spectroscopy and Electrical and Electronic Engineering, on topics such as Spectroscopy and Laser Applications, Advanced Chemical Physics Studies and Laser Design and Applications.

ORCID 0000-0002-8913-6646 OpenAlex
World rank
#563,566
of 1,633,909 ranked researchers
Rank in United States
#181,037
of 358,040
Works
61
Citations
137
Citations per work
2.2

What does James J. O’Brien research?

Atomic and Molecular Physics, and Optics: 20.5%Spectroscopy: 19.2%Electrical and Electronic Engineering: 6.4%Media Technology: 5.1%other fields: 48.8%20%top field
Atomic and Molecular Physics, and Optics20.5%Spectroscopy19.2%Electrical and Electronic Engineering6.4%Media Technology5.1%other fields48.8%

Shares of their own output, by the field each of their topics belongs to. The grey slice is everything not listed.

  1. 1Atomic and Molecular Physics, and Optics20% of their works
  2. 2Spectroscopy19% of their works
  3. 3Electrical and Electronic Engineering6% of their works
  4. 4Media Technology5% of their works
  5. 5Atmospheric Science4% of their works
  6. 6Civil and Structural Engineering4% of their works

Research topics

Which keywords describe James J. O’Brien's research?

The keywords of their largest research topics: Spectroscopic Databases, Terahertz Quantum-Cascade Lasers, Density Functional Theory, Dispersion Correction, Electric Discharge, Laser Oscillation, DNA Strand Breaks and Low-Energy Electrons.

Size is their works in the topics tagged with each word, from their 8 largest topics. Each links to the topic it comes from most.

All 16 words, with their numbers
  1. Spectroscopic Databases121 topic
  2. Terahertz Quantum-Cascade Lasers121 topic
  3. Density Functional Theory81 topic
  4. Dispersion Correction81 topic
  5. Electric Discharge51 topic
  6. Laser Oscillation51 topic
  7. DNA Strand Breaks41 topic
  8. Low-Energy Electrons41 topic
  9. Ozone Depletion31 topic
  10. Photosynthesis31 topic
  11. Quantum Coherence31 topic
  12. Stratospheric Water Vapor31 topic
  13. Curriculum Development21 topic
  14. Engineering Education21 topic
  15. Ionization21 topic
  16. Mass Spectrometry21 topic

Where does James J. O’Brien work?

James J. O’Brien's main affiliation in the publication record is University of Missouri–St. Louis, United States.

How many publications and citations does James J. O’Brien have?

Science Explorer counts 61 works and 137 citations for James J. O’Brien, ranking #563,566 of 1,633,909 researchers worldwide on the composite score.

Ranked on field-normalised excellence (50%), output (30%) and citations (20%). Counts come from OpenAlex author records, which occasionally merge different people who share a name or split one person into several.

Other researchers named James J. O’Brien

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