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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 67 7120 6452 56 55 181 11718

Kopin Liu publications per year

The chart shows the history of publications by Kopin Liu between 1976 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Kopin Liu published across 50 years, from 1976 to 2025, averaging 4.3 papers a year. Output peaked at 24 publications in 2021. 6 of the 213 publications appeared in the last two years.

No. of publications
5 10 15 20
Bar chart. Horizontal axis: year, 1976 to 2025. Vertical axis: number of publications, 0 to 24. Peak 24 publications in 2021. 1976: 1 publication 1977: 1 publication 1978: 2 publications 1979: 1 publication 1980: 0 publications 1981: 3 publications 1982: 1 publication 1983: 3 publications 1984: 2 publications 1985: 4 publications 1986: 3 publications 1987: 1 publication 1988: 3 publications 1989: 3 publications 1990: 4 publications 1991: 3 publications 1992: 2 publications 1993: 2 publications 1994: 1 publication 1995: 3 publications 1996: 7 publications 1997: 5 publications 1998: 4 publications 1999: 7 publications 2000: 7 publications 2001: 4 publications 2002: 2 publications 2003: 5 publications 2004: 8 publications 2005: 8 publications 2006: 7 publications 2007: 7 publications 2008: 6 publications 2009: 6 publications 2010: 4 publications 2011: 4 publications 2012: 6 publications 2013: 4 publications 2014: 6 publications 2015: 3 publications 2016: 6 publications 2017: 4 publications 2018: 3 publications 2019: 3 publications 2020: 5 publications 2021: 24 publications 2022: 6 publications 2023: 3 publications 2024: 3 publications 2025: 3 publications
1976 2025

213 publications in total across all disciplines

View publications per year as a table
Kopin Liu: publications per year, 1976 to 2025
Year Publications
1976 1
1977 1
1978 2
1979 1
1980 0
1981 3
1982 1
1983 3
1984 2
1985 4
1986 3
1987 1
1988 3
1989 3
1990 4
1991 3
1992 2
1993 2
1994 1
1995 3
1996 7
1997 5
1998 4
1999 7
2000 7
2001 4
2002 2
2003 5
2004 8
2005 8
2006 7
2007 7
2008 6
2009 6
2010 4
2011 4
2012 6
2013 4
2014 6
2015 3
2016 6
2017 4
2018 3
2019 3
2020 5
2021 24
2022 6
2023 3
2024 3
2025 3
Total 213
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Kopin Liu publication distribution in Chemistry in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Chemistry in 2026. The highlighted bar marks where Kopin Liu sits on this spectrum.

No. of scientists
250 500 750 1,000 1,250
Bar chart with 63 bars. Horizontal axis: publications, 61–80 to 1,295+. Vertical axis: number of scientists, 0 to 1,350. Most scientists, 1,350, have 161–180 publications. The last bar groups every scientist with 1,295 publications or more. The highlighted bar, 181–200 publications, is where this scientist sits. 61–80 publications: 66 scientists 81–100 publications: 302 scientists 101–120 publications: 623 scientists 121–140 publications: 918 scientists 141–160 publications: 1,218 scientists 161–180 publications: 1,350 scientists 181–200 publications: 1,344 scientists 201–220 publications: 1,281 scientists 221–240 publications: 1,216 scientists 241–260 publications: 1,100 scientists 261–280 publications: 979 scientists 281–300 publications: 939 scientists 301–320 publications: 764 scientists 321–340 publications: 643 scientists 341–360 publications: 628 scientists 361–380 publications: 522 scientists 381–400 publications: 459 scientists 401–420 publications: 397 scientists 421–440 publications: 327 scientists 441–460 publications: 270 scientists 461–480 publications: 265 scientists 481–500 publications: 252 scientists 501–520 publications: 201 scientists 521–540 publications: 185 scientists 541–560 publications: 148 scientists 561–580 publications: 148 scientists 581–600 publications: 132 scientists 601–620 publications: 114 scientists 621–640 publications: 104 scientists 641–660 publications: 91 scientists 661–680 publications: 92 scientists 681–700 publications: 73 scientists 701–720 publications: 57 scientists 721–740 publications: 54 scientists 741–760 publications: 67 scientists 761–780 publications: 45 scientists 781–800 publications: 46 scientists 801–820 publications: 39 scientists 821–840 publications: 32 scientists 841–860 publications: 36 scientists 861–880 publications: 29 scientists 881–900 publications: 26 scientists 901–920 publications: 24 scientists 921–940 publications: 14 scientists 941–960 publications: 23 scientists 961–980 publications: 28 scientists 981–1,000 publications: 15 scientists 1,001–1,020 publications: 29 scientists 1,021–1,040 publications: 12 scientists 1,041–1,060 publications: 19 scientists 1,061–1,080 publications: 12 scientists 1,081–1,100 publications: 6 scientists 1,101–1,120 publications: 8 scientists 1,121–1,140 publications: 12 scientists 1,141–1,160 publications: 5 scientists 1,161–1,180 publications: 6 scientists 1,181–1,200 publications: 14 scientists 1,201–1,220 publications: 7 scientists 1,221–1,240 publications: 2 scientists 1,241–1,260 publications: 6 scientists 1,261–1,280 publications: 4 scientists 1,281–1,294 publications: 6 scientists 1,295+ publications: 100 scientists
61–80 publications 1,295+

This scientist: 181 publications — 25th percentile

25% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,295 publications or more.

View publications distribution as a table
Number of Chemistry scientists by publication count, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
Publications Scientists This scientist
61–80 66
81–100 302
101–120 623
121–140 918
141–160 1,218
161–180 1,350
181–200 1,344 181
201–220 1,281
221–240 1,216
241–260 1,100
261–280 979
281–300 939
301–320 764
321–340 643
341–360 628
361–380 522
381–400 459
401–420 397
421–440 327
441–460 270
461–480 265
481–500 252
501–520 201
521–540 185
541–560 148
561–580 148
581–600 132
601–620 114
621–640 104
641–660 91
661–680 92
681–700 73
701–720 57
721–740 54
741–760 67
761–780 45
781–800 46
801–820 39
821–840 32
841–860 36
861–880 29
881–900 26
901–920 24
921–940 14
941–960 23
961–980 28
981–1,000 15
1,001–1,020 29
1,021–1,040 12
1,041–1,060 19
1,061–1,080 12
1,081–1,100 6
1,101–1,120 8
1,121–1,140 12
1,141–1,160 5
1,161–1,180 6
1,181–1,200 14
1,201–1,220 7
1,221–1,240 2
1,241–1,260 6
1,261–1,280 4
1,281–1,294 6
1,295+ 100
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Kopin Liu D-index placement in Chemistry in 2026

The chart shows the D-index (discipline H-index) distribution of Chemistry scientists ranked by Research.com in 2026. The highlighted bar marks where Kopin Liu sits on this spectrum.

No. of scientists
250 500 750 1,000
Bar chart with 61 bars. Horizontal axis: D-Index, 40–41 to 159+. Vertical axis: number of scientists, 0 to 1,051. Most scientists, 1,051, have 56–57 D-Index. The last bar groups every scientist with 159 D-Index or more. The highlighted bar, 66–67 D-Index, is where this scientist sits. 40–41 D-Index: 289 scientists 42–43 D-Index: 612 scientists 44–45 D-Index: 808 scientists 46–47 D-Index: 776 scientists 48–49 D-Index: 835 scientists 50–51 D-Index: 861 scientists 52–53 D-Index: 872 scientists 54–55 D-Index: 933 scientists 56–57 D-Index: 1,051 scientists 58–59 D-Index: 930 scientists 60–61 D-Index: 882 scientists 62–63 D-Index: 834 scientists 64–65 D-Index: 731 scientists 66–67 D-Index: 775 scientists 68–69 D-Index: 683 scientists 70–71 D-Index: 646 scientists 72–73 D-Index: 561 scientists 74–75 D-Index: 501 scientists 76–77 D-Index: 437 scientists 78–79 D-Index: 388 scientists 80–81 D-Index: 354 scientists 82–83 D-Index: 292 scientists 84–85 D-Index: 275 scientists 86–87 D-Index: 254 scientists 88–89 D-Index: 235 scientists 90–91 D-Index: 185 scientists 92–93 D-Index: 192 scientists 94–95 D-Index: 155 scientists 96–97 D-Index: 163 scientists 98–99 D-Index: 125 scientists 100–101 D-Index: 105 scientists 102–103 D-Index: 105 scientists 104–105 D-Index: 112 scientists 106–107 D-Index: 88 scientists 108–109 D-Index: 68 scientists 110–111 D-Index: 69 scientists 112–113 D-Index: 65 scientists 114–115 D-Index: 79 scientists 116–117 D-Index: 61 scientists 118–119 D-Index: 44 scientists 120–121 D-Index: 37 scientists 122–123 D-Index: 40 scientists 124–125 D-Index: 33 scientists 126–127 D-Index: 26 scientists 128–129 D-Index: 34 scientists 130–131 D-Index: 35 scientists 132–133 D-Index: 25 scientists 134–135 D-Index: 27 scientists 136–137 D-Index: 17 scientists 138–139 D-Index: 16 scientists 140–141 D-Index: 20 scientists 142–143 D-Index: 20 scientists 144–145 D-Index: 15 scientists 146–147 D-Index: 9 scientists 148–149 D-Index: 9 scientists 150–151 D-Index: 16 scientists 152–153 D-Index: 11 scientists 154–155 D-Index: 9 scientists 156–157 D-Index: 3 scientists 158 D-Index: 3 scientists 159+ D-Index: 98 scientists
40–41 D-Index 159+

This scientist: 67 D-Index — 62nd percentile

62% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 159 D-Index or more.

View D-Index distribution as a table
Number of Chemistry scientists by D-index, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
D-Index Scientists This scientist
40–41 289
42–43 612
44–45 808
46–47 776
48–49 835
50–51 861
52–53 872
54–55 933
56–57 1,051
58–59 930
60–61 882
62–63 834
64–65 731
66–67 775 67
68–69 683
70–71 646
72–73 561
74–75 501
76–77 437
78–79 388
80–81 354
82–83 292
84–85 275
86–87 254
88–89 235
90–91 185
92–93 192
94–95 155
96–97 163
98–99 125
100–101 105
102–103 105
104–105 112
106–107 88
108–109 68
110–111 69
112–113 65
114–115 79
116–117 61
118–119 44
120–121 37
122–123 40
124–125 33
126–127 26
128–129 34
130–131 35
132–133 25
134–135 27
136–137 17
138–139 16
140–141 20
142–143 20
144–145 15
146–147 9
148–149 9
150–151 16
152–153 11
154–155 9
156–157 3
158 3
159+ 98
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Research.com Recognitions

  • 2005 - Fellow, The World Academy of Sciences
  • 1998 - Fellow of American Physical Society (APS) Citation For major contributions in the study of state and angleresolved reaction and energy transfer dynamics using molecular beam techniques, in particular, the Doppler selected timeofflight technique

Overview

Kopin Liu is affiliated with Academia Sinica in Taiwan and has an extensive research portfolio primarily in the fields of Physics and Astronomy as well as Chemistry. Their research emphasizes Atomic and Molecular Physics, and Optics, with significant contributions to Spectroscopy.

Their work is represented heavily in advanced chemical physics and spectroscopy applications, including several studies involving spectroscopy and quantum chemical techniques. The main topics of their publications include:

  • Advanced Chemical Physics Studies
  • Spectroscopy and Laser Applications
  • Spectroscopy and Quantum Chemical Studies
  • Molecular Spectroscopy and Structure
  • Quantum, superfluid, helium dynamics
  • Mass Spectrometry Techniques and Applications
  • Innovative Microfluidic and Catalytic Techniques Innovation

Liu's recent scholarly contributions encompass a range of studies published in notable venues. Recent papers include:

  • "Real-time tracking of the entangled pathways in the multichannel photodissociation of acetaldehyde" (2020) published in Chemical Science
  • "Fermi-phase-induced interference in the reaction between Cl and vibrationally excited CH3D" (2022) published in Nature Chemistry
  • "State-to-State Dynamics in Mode-Selective Polyatomic Reactions" (2023) published in The Journal of Physical Chemistry Letters
  • "Multifaceted Stereoselectivity in Polyatomic Reactions" (2020) published in The Journal of Physical Chemistry A
  • "Active stereo-control of the Cl + CH4(ν3 = 1) reaction: a three-dimensional perspective" (2020) published in Physical Chemistry Chemical Physics

Publications are frequently featured in journals such as:

  • The Journal of Physical Chemistry A
  • The Journal of Physical Chemistry Letters
  • Physical Chemistry Chemical Physics
  • Chemical Science
  • Zenodo (CERN European Organization for Nuclear Research)

Collaboration is a notable part of Liu's research, working repeatedly with several co-authors. Frequent collaborators include:

  • Huilin Pan
  • Surjendu Bhattacharyya
  • Sohidul Mondal
  • Chung-Hsin Yang
  • Dong H. Zhang

In recognition of their work, Liu was named a Fellow of the American Physical Society in 1998, with a citation acknowledging contributions to the study of state- and angle-resolved reaction and energy transfer dynamics using molecular beam techniques. Additionally, Liu was awarded Fellowship of The World Academy of Sciences in 2005.

Best Publications

  • Observation of Gravitational Waves from Two Neutron Star–Black Hole Coalescences

    R. Abbott;T. D. Abbott;S. Abraham;F. Acernese

  • Application of time-sliced ion velocity imaging to crossed molecular beam experiments

    Jim J. Lin;Jingang Zhou;Weicheng Shiu;Kopin Liu

  • Do Vibrational Excitations of CHD3 Preferentially Promote Reactivity Toward the Chlorine Atom

    Shannon Yan;Shannon Yan;Yen-Tien Wu;Yen-Tien Wu;Bailin Zhang;Bailin Zhang;Xian-Fang Yue;Xian-Fang Yue

  • Resonance-mediated chemical reaction: F+HD-->HF+D

    Rex T. Skodje;Rex T. Skodje;Dimitris Skouteris;David E. Manolopoulos;Shih-Huang Lee

  • van der waals interactions in the Cl + HD reaction

    Dimitris Skouteris;David E. Manolopoulos;Wensheng Bian;Hans-Joachim Werner

  • Gas phase reactions of iron clusters with hydrogen. I. Kinetics

    S. C. Richtsmeier;E. K. Parks;K. Liu;L. G. Pobo

  • Crossed-beam studies of neutral reactions: state-specific differential cross sections.

    Kopin Liu

  • State-specific correlation of coincident product pairs in the F + CD4 reaction.

    Jim J. Lin;Jingang Zhou;Weicheng Shiu;Kopin Liu;Kopin Liu

  • Observation of a transition state resonance in the integral cross section of the F+HD reaction

    Rex T. Skodje;Dimitris Skouteris;David E. Manolopoulos;Shih-Huang Lee

  • CH Stretching Excitation in the Early Barrier F + CHD3 Reaction Inhibits CH Bond Cleavage

    Weiqing Zhang;Weiqing Zhang;Hiroshi Kawamata;Kopin Liu

  • The Chemical Dynamics and Kinetics of Small Radicals: Part 1

    Kopin Liu;Albert Wagner

  • Quantum-state resolved bimolecular collisions of velocity-controlled OH with NO radicals.

    Moritz Kirste;Xingan Wang;H. Christian Schewe;Gerard Meijer

  • The inelastic scattering of 2Π [case (b)] molecules and an understanding of the differing Λ doublet propensities for molecules of π vs π3 orbital occupancy

    Paul J. Dagdigian;Millard H. Alexander;Kopin Liu

  • Reactive Resonance in a Polyatomic Reaction

    Weicheng Shiu;Jim J. Lin;Kopin Liu

  • Steric control of the reaction of CH stretch-excited CHD3 with chlorine atom.

    Fengyan Wang;Jui-San Lin;Kopin Liu;Kopin Liu

  • The dynamics of ethylene dimer infrared photodissociation in pulsed molecular beamsa)

    Mark A. Hoffbauer;Kopin Liu;Clayton F. Giese;W. Ronald Gentry

  • Reaction dynamics of O(1D)+H2, D2, and HD: Direct evidence for the elusive abstraction pathway and the estimation of its branching

    Yen Tsung Hsu;Jeng Han Wang;Jeng Han Wang;Kopin Liu

  • Imaging a reactive resonance in the Cl+CH4 reaction

    Bailin Zhang;Kopin Liu

  • Reactive excitation functions for F+p-H2/n-H2/D2 and the vibrational branching for F+HD

    Feng Dong;Shih-Huang Lee;Kopin Liu

  • State‐to‐state integral cross sections for the inelastic scattering of CH(X 2Π)+He: Rotational rainbow and orbital alignment

    R. Glen Macdonald;Kopin Liu

  • The Chemical Dynamics and Kinetics of Small Radicals: Part 2

    Kopin Liu;Albert Wagner

Frequent Co-Authors

Jim J. Lin
Jim J. Lin National Taiwan University
George C. Schatz
George C. Schatz Northwestern University
Gábor Czakó
Gábor Czakó University of Szeged
David E. Manolopoulos
David E. Manolopoulos University of Oxford
Albert F. Wagner
Albert F. Wagner Argonne National Laboratory
John C. Polanyi
John C. Polanyi University of Toronto
Hua Guo
Hua Guo University of New Mexico
Gerard Meijer
Gerard Meijer Fritz Haber Institute of the Max Planck Society
Joel M. Bowman
Joel M. Bowman Emory University
Sean C. Smith
Sean C. Smith Australian National University

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