John O’Brien
John O’Brien publishes mostly in Electrical and Electronic Engineering, Atomic and Molecular Physics, and Optics and Clinical Psychology, on topics such as Photonic and Optical Devices, Photonic Crystals and Applications and Semiconductor Lasers and Optical Devices.
- World rank
- #217,220 of 1,633,909 ranked researchers
- Rank in United States
- #86,802 of 358,040
- Works
- 49
- Citations
- 117
- Citations per work
- 2.4
What does John O’Brien research?
Shares of their own output, by the field each of their topics belongs to. The grey slice is everything not listed.
- 1Electrical and Electronic Engineering20% of their works
- 2Atomic and Molecular Physics, and Optics9% of their works
- 3Clinical Psychology9% of their works
- 4Nuclear and High Energy Physics4% of their works
- 5Surfaces, Coatings and Films4% of their works
- 6Economics and Econometrics4% of their works
Research topics
Which keywords describe John O’Brien's research?
The keywords of their largest research topics: Photonic Crystals, Optical Modulators, Silicon Photonics, Nanocavities, Slow Light, Adverse Experiences, Antireflective Coatings and Childhood Trauma.
- RNA-Seq
- Pharmaceutical Industry
- Conflict of Interest
- Optical Interconnects
- Childhood Trauma
- Adverse Experiences
- Nanocavities
- Optical Modulators
- Photonic Crystals
- Silicon Photonics
- Slow Light
- Antireflective Coatings
- Nanostructures
- Semiconductor Lasers
- Genetic Structure
- Population Genetics
- sequence alignment
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 17 words, with their numbers
- Photonic Crystals62 topics
- Optical Modulators51 topic
- Silicon Photonics51 topic
- Nanocavities41 topic
- Slow Light41 topic
- Adverse Experiences21 topic
- Antireflective Coatings21 topic
- Childhood Trauma21 topic
- Nanostructures21 topic
- Optical Interconnects21 topic
- Semiconductor Lasers21 topic
- Conflict of Interest11 topic
- Genetic Structure11 topic
- Pharmaceutical Industry11 topic
- Population Genetics11 topic
- RNA-Seq11 topic
- sequence alignment11 topic
Where does John O’Brien work?
John O’Brien's main affiliation in the publication record is University of Southern California, United States.
How many publications and citations does John O’Brien have?
Science Explorer counts 49 works and 117 citations for John O’Brien, ranking #217,220 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 John O’Brien
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