University, Subject, Country, Region, World
University of California Santa Barbara 1.327 Scientists Subject Rankings - 2025
The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 211 sub-branches at global, national, and regional levels. These analyses are based on indicators such as the H-index, i10-index, and citation count, including their values from the last 6 years. As of May 20, 2025, the rankings are determined according to the Total H Index. BETA VERSION: The subject field rankings for the world, regions, countries, and universities are currently in their Beta phase. This is due to the exclusion of (1.121.241) scientists categorized under ‘Others’, whose profiles have yet to be determined, edited, or classified. As updates are made to these fields, the rankings will be adjusted accordingly. Note: Please keep this in mind while reviewing the rankings. For further details, explore our [University Subject Rankings].
* Total H IndexRankings
Ranking Based On Selection: 1
solid state physics
semiconductor quantum materials and device
Metrics
H-Index
i10 Index
Citation Counts
221
1,384
216,410
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* Total H IndexRankings
Ranking Based On Selection: 2
Educational psycholog
Metrics
H-Index
i10 Index
Citation Counts
190
578
247,904
* Total H IndexRankings
Ranking Based On Selection: 3
Metrics
H-Index
i10 Index
Citation Counts
171
780
150,584
* Total H IndexRankings
Ranking Based On Selection: 4
Chemistry
Polymer Science
Materials
Polymers
Polymer Chemistr
Metrics
H-Index
i10 Index
Citation Counts
170
659
108,077
* Total H IndexRankings
Ranking Based On Selection: 5
Solid State Lighting
LEDs
Power Switching
Energy Efficiency
Metrics
H-Index
i10 Index
Citation Counts
157
1,043
99,635
* Total H IndexRankings
Ranking Based On Selection: 6
surface force
Metrics
H-Index
i10 Index
Citation Counts
153
477
140,039
* Total H IndexRankings
Ranking Based On Selection: 7
semiconductor
Metrics
H-Index
i10 Index
Citation Counts
143
1,001
88,366
* Total H IndexRankings
Ranking Based On Selection: 8
Photonics
optoelectronics
optical switching
MEMS
silicon photonic
Metrics
H-Index
i10 Index
Citation Counts
142
1,043
83,950
* Total H IndexRankings
Ranking Based On Selection: 9
Condensed Matter Physics
Materials Scienc
Metrics
H-Index
i10 Index
Citation Counts
137
462
90,893
* Total H IndexRankings
Ranking Based On Selection: 10
Metrics
H-Index
i10 Index
Citation Counts
134
889
82,853
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* Total H IndexRankings
Ranking Based On Selection: 11
Parallel and distributed systems
Internet search
high performance computin
Metrics
H-Index
i10 Index
Citation Counts
133
1,596
93,688
* Total H IndexRankings
Ranking Based On Selection: 12
Metrics
H-Index
i10 Index
Citation Counts
125
305
58,059
* Total H IndexRankings
Ranking Based On Selection: 13
Marine ecology
conservation biolog
Metrics
H-Index
i10 Index
Citation Counts
119
267
84,754
* Total H IndexRankings
Ranking Based On Selection: 14
Computer Security
Securit
Metrics
H-Index
i10 Index
Citation Counts
119
264
53,473
* Total H IndexRankings
Ranking Based On Selection: 15
Cognitive Neuroscienc
Metrics
H-Index
i10 Index
Citation Counts
117
414
64,471
* Total H IndexRankings
Ranking Based On Selection: 16
Building useful gadgets
Gratefulnes
Metrics
H-Index
i10 Index
Citation Counts
117
333
55,846
* Total H IndexRankings
Ranking Based On Selection: 17
soil science
ecology
arctic science
microbial ecolog
Metrics
H-Index
i10 Index
Citation Counts
112
198
53,884
* Total H IndexRankings
Ranking Based On Selection: 18
Conservation Science
Marine Ecology
Marine Science
Sustainability Scienc
Metrics
H-Index
i10 Index
Citation Counts
110
252
51,564
* Total H IndexRankings
Ranking Based On Selection: 19
Neuroscience of Goal Oriented Behavior
Learning
Action
Functional Reorganizatio
Metrics
H-Index
i10 Index
Citation Counts
110
270
57,082
* Total H IndexRankings
Ranking Based On Selection: 20
Limnolog
Metrics
H-Index
i10 Index
Citation Counts
109
339
49,871
* Total H IndexRankings
Ranking Based On Selection: 21
Computer Architecture
VLSI
EDA
CAD
Embedded System
Metrics
H-Index
i10 Index
Citation Counts
106
569
47,341
* Total H IndexRankings
Ranking Based On Selection: 22
Computer Security
Network Security
Web Security
Binary Analysis
Malwar
Metrics
H-Index
i10 Index
Citation Counts
106
261
43,930
* Total H IndexRankings
Ranking Based On Selection: 23
Organic synthesis
green chemistr
Metrics
H-Index
i10 Index
Citation Counts
106
415
39,739
* Total H IndexRankings
Ranking Based On Selection: 24
group-III nitride crystal growth
characterization
and device application
Metrics
H-Index
i10 Index
Citation Counts
106
497
45,388
* Total H IndexRankings
Ranking Based On Selection: 25
fairness
diversity
stigma
resilience
coping with stres
Metrics
H-Index
i10 Index
Citation Counts
104
185
60,736
Pierre Petroff
University of California Santa Barbara
Santa Barbara, United States
Metrics
H-Index
i10-Index
Citation Counts
221
1,384
216,410
solid state physics
semiconductor quantum materials and device
Richard E Mayer
University of California Santa Barbara
Santa Barbara, United States
Metrics
H-Index
i10-Index
Citation Counts
190
578
247,904
Galen Stucky
University of California Santa Barbara
Santa Barbara, United States
Metrics
H-Index
i10-Index
Citation Counts
171
780
150,584
Craig Hawker
University of California Santa Barbara
Santa Barbara, United States
Metrics
H-Index
i10-Index
Citation Counts
170
659
108,077
Chemistry
Polymer Science
Materials
Polymers
Polymer Chemistr
Steven DenBaars
University of California Santa Barbara
Santa Barbara, United States
Metrics
H-Index
i10-Index
Citation Counts
157
1,043
99,635
Jacob Israelachvili
University of California Santa Barbara
Santa Barbara, United States
Metrics
H-Index
i10-Index
Citation Counts
153
477
140,039
Jim Speck
University of California Santa Barbara
Santa Barbara, United States
Metrics
H-Index
i10-Index
Citation Counts
143
1,001
88,366
John Bowers
University of California Santa Barbara
Santa Barbara, United States
Metrics
H-Index
i10-Index
Citation Counts
142
1,043
83,950
Photonics
optoelectronics
optical switching
MEMS
silicon photonic
Chris G Van De Walle
University of California Santa Barbara
Santa Barbara, United States
Metrics
H-Index
i10-Index
Citation Counts
137
462
90,893
Condensed Matter Physics
Materials Scienc
Umesh Mishra
University of California Santa Barbara
Santa Barbara, United States
Metrics
H-Index
i10-Index
Citation Counts
134
889
82,853
Is Your University Ready for the Future?
Compare your institution’s global, national, and city-level ranking with its 20 closest competitors and set strategic goals.
Gain insights from detailed performance analyses of scientists across 13 major disciplines, identify your strengths, improve weaknesses, and gain a competitive edge.. Check Your Free Sample Performance Analysis
Tao Yang
University of California Santa Barbara
Santa Barbara, United States
Metrics
H-Index
i10-Index
Citation Counts
133
1,596
93,688
Parallel and distributed systems
Internet search
high performance computin
Kenneth S Kosik
University of California Santa Barbara
Santa Barbara, United States
Metrics
H-Index
i10-Index
Citation Counts
125
305
58,059
Benjamin S Halpern
University of California Santa Barbara
Santa Barbara, United States
Metrics
H-Index
i10-Index
Citation Counts
119
267
84,754
Marine ecology
conservation biolog
Christopher Kruegel
University of California Santa Barbara
Santa Barbara, United States
Metrics
H-Index
i10-Index
Citation Counts
119
264
53,473
Computer Security
Securit
Michael S Gazzaniga
University of California Santa Barbara
Santa Barbara, United States
Metrics
H-Index
i10-Index
Citation Counts
117
414
64,471
Paul Hansma
University of California Santa Barbara
Santa Barbara, United States
Metrics
H-Index
i10-Index
Citation Counts
117
333
55,846
Joshua P Schimel
University of California Santa Barbara
Santa Barbara, United States
Metrics
H-Index
i10-Index
Citation Counts
112
198
53,884
soil science
ecology
arctic science
microbial ecolog
Steven Gaines
University of California Santa Barbara
Santa Barbara, United States
Metrics
H-Index
i10-Index
Citation Counts
110
252
51,564
Conservation Science
Marine Ecology
Marine Science
Sustainability Scienc
Scott Grafton
University of California Santa Barbara
Santa Barbara, United States
Metrics
H-Index
i10-Index
Citation Counts
110
270
57,082
Neuroscience of Goal Oriented Behavior
Learning
Action
Functional Reorganizatio
John Melack
University of California Santa Barbara
Santa Barbara, United States
Metrics
H-Index
i10-Index
Citation Counts
109
339
49,871
Yuan Xie
University of California Santa Barbara
Santa Barbara, United States
Metrics
H-Index
i10-Index
Citation Counts
106
569
47,341
Computer Architecture
VLSI
EDA
CAD
Embedded System
Giovanni Vigna
University of California Santa Barbara
Santa Barbara, United States
Metrics
H-Index
i10-Index
Citation Counts
106
261
43,930
Computer Security
Network Security
Web Security
Binary Analysis
Malwar
Bruce H Lipshutz
University of California Santa Barbara
Santa Barbara, United States
Metrics
H-Index
i10-Index
Citation Counts
106
415
39,739
Organic synthesis
green chemistr
Stacia Keller
University of California Santa Barbara
Santa Barbara, United States
Metrics
H-Index
i10-Index
Citation Counts
106
497
45,388
group-III nitride crystal growth
characterization
and device application
Brenda Major
University of California Santa Barbara
Santa Barbara, United States
Metrics
H-Index
i10-Index
Citation Counts
104
185
60,736
fairness
diversity
stigma
resilience
coping with stres