World's Best Scientists 2026 revealed!

D-Index & Metrics

Physics

D-Index
76
Citations
29214
World Ranking
3289
National Ranking
1556

Leo W. Hollberg publication distribution in Physics in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Physics in 2026. The highlighted bar marks where Leo W. Hollberg sits on this spectrum.

103–122 publications: 7 scientists 123–142 publications: 10 scientists 143–162 publications: 31 scientists 163–182 publications: 35 scientists 183–202 publications: 53 scientists 203–222 publications: 81 scientists 223–242 publications: 85 scientists 243–262 publications: 112 scientists 263–282 publications: 114 scientists 283–302 publications: 126 scientists 303–322 publications: 136 scientists 323–342 publications: 162 scientists 343–362 publications: 155 scientists 363–382 publications: 156 scientists 383–402 publications: 134 scientists 403–422 publications: 145 scientists 423–442 publications: 147 scientists 443–462 publications: 131 scientists 463–482 publications: 131 scientists 483–502 publications: 116 scientists 503–522 publications: 106 scientists 523–542 publications: 103 scientists 543–562 publications: 87 scientists 563–582 publications: 84 scientists 583–602 publications: 94 scientists 603–622 publications: 70 scientists 623–642 publications: 76 scientists 643–662 publications: 60 scientists 663–682 publications: 54 scientists 683–702 publications: 60 scientists 703–722 publications: 48 scientists 723–742 publications: 64 scientists 743–762 publications: 48 scientists 763–782 publications: 37 scientists 783–802 publications: 43 scientists 803–822 publications: 34 scientists 823–842 publications: 36 scientists 843–862 publications: 32 scientists 863–882 publications: 32 scientists 883–902 publications: 31 scientists 903–922 publications: 25 scientists 923–942 publications: 15 scientists 943–962 publications: 24 scientists 963–982 publications: 13 scientists 983–1,002 publications: 21 scientists 1,003–1,022 publications: 21 scientists 1,023–1,042 publications: 16 scientists 1,043–1,062 publications: 9 scientists 1,063–1,082 publications: 19 scientists 1,083–1,102 publications: 11 scientists 1,103–1,122 publications: 17 scientists 1,123–1,142 publications: 11 scientists 1,143–1,162 publications: 7 scientists 1,163–1,182 publications: 4 scientists 1,183–1,202 publications: 10 scientists 1,203–1,222 publications: 8 scientists 1,223–1,242 publications: 16 scientists 1,243–1,262 publications: 4 scientists 1,263–1,282 publications: 10 scientists 1,283–1,302 publications: 5 scientists 1,303–1,322 publications: 7 scientists 1,323–1,342 publications: 4 scientists 1,343–1,362 publications: 8 scientists 1,363–1,382 publications: 6 scientists 1,383–1,402 publications: 7 scientists 1,403–1,422 publications: 3 scientists 1,423–1,442 publications: 4 scientists 1,443–1,462 publications: 4 scientists 1,463–1,468 publications: 3 scientists 1,469+ publications: 100 scientists
103 publications 1,469+

This scientist: 480 publications — 53rd percentile

53% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,469 publications or more.

Leo W. Hollberg D-index placement in Physics in 2026

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

70–71 D-Index: 76 scientists 72–73 D-Index: 110 scientists 74–75 D-Index: 143 scientists 76–77 D-Index: 153 scientists 78–79 D-Index: 144 scientists 80–81 D-Index: 167 scientists 82–83 D-Index: 167 scientists 84–85 D-Index: 166 scientists 86–87 D-Index: 132 scientists 88–89 D-Index: 155 scientists 90–91 D-Index: 134 scientists 92–93 D-Index: 137 scientists 94–95 D-Index: 102 scientists 96–97 D-Index: 112 scientists 98–99 D-Index: 110 scientists 100–101 D-Index: 116 scientists 102–103 D-Index: 97 scientists 104–105 D-Index: 103 scientists 106–107 D-Index: 87 scientists 108–109 D-Index: 90 scientists 110–111 D-Index: 67 scientists 112–113 D-Index: 78 scientists 114–115 D-Index: 75 scientists 116–117 D-Index: 67 scientists 118–119 D-Index: 69 scientists 120–121 D-Index: 60 scientists 122–123 D-Index: 59 scientists 124–125 D-Index: 53 scientists 126–127 D-Index: 42 scientists 128–129 D-Index: 41 scientists 130–131 D-Index: 33 scientists 132–133 D-Index: 32 scientists 134–135 D-Index: 45 scientists 136–137 D-Index: 19 scientists 138–139 D-Index: 24 scientists 140–141 D-Index: 28 scientists 142–143 D-Index: 31 scientists 144–145 D-Index: 22 scientists 146–147 D-Index: 20 scientists 148–149 D-Index: 12 scientists 150–151 D-Index: 16 scientists 152–153 D-Index: 24 scientists 154–155 D-Index: 23 scientists 156–157 D-Index: 15 scientists 158–159 D-Index: 15 scientists 160–161 D-Index: 11 scientists 162–163 D-Index: 17 scientists 164–165 D-Index: 12 scientists 166–167 D-Index: 11 scientists 168–169 D-Index: 9 scientists 170–171 D-Index: 9 scientists 172–173 D-Index: 11 scientists 174–175 D-Index: 4 scientists 176–177 D-Index: 8 scientists 178–179 D-Index: 5 scientists 180–181 D-Index: 3 scientists 182–183 D-Index: 4 scientists 184 D-Index: 4 scientists 185+ D-Index: 99 scientists
70 D-Index 185+

This scientist: 76 D-Index — 11th percentile

11% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 185 D-Index or more.

Research.com Recognitions

  • 2003 - OSA Fellows For groundbreaking contributions in using stabilized diode lasers for precision laser spectroscopy and frequency measurement, including the enabling impact of his work on the whole of optical physics.
  • 2003 - Fellow of American Physical Society (APS) Citation For seminal work in the development and application of ultrastable diode lasers, especially as applied to spectroscopy and precision measurements

Overview

What is he best known for?

The fields of study he is best known for:

  • Quantum mechanics
  • Laser
  • Optics

His primary areas of investigation include Laser, Optics, Atomic clock, Atomic physics and Femtosecond. Leo W. Hollberg combines subjects such as Spectroscopy, Optoelectronics, Frequency standard and Phase noise with his study of Laser. His Optics study incorporates themes from Phase and Electromagnetic field.

His Atomic clock study integrates concerns from other disciplines, such as Ion, Optical fiber and Metrology. His research in Atomic physics intersects with topics in Resonance, Quantum mechanics, Magnetic field, Excitation and Optical lattice. His Femtosecond research includes themes of Ultrashort pulse, Frequency comb, Bandwidth, Terahertz radiation and Microwave.

His most cited work include:

  • Observation of squeezed states generated by four-wave mixing in an optical cavity. (1192 citations)
  • ULTRASLOW GROUP VELOCITY AND ENHANCED NONLINEAR OPTICAL EFFECTS IN A COHERENTLY DRIVEN HOT ATOMIC GAS (912 citations)
  • Using diode lasers for atomic physics (672 citations)

What are the main themes of his work throughout his whole career to date?

His primary areas of study are Optics, Laser, Atomic clock, Optoelectronics and Atomic physics. His studies deal with areas such as Spectroscopy and Microwave as well as Optics. His study in Diode extends to Laser with its themes.

Leo W. Hollberg interconnects Atom optics, Electrical engineering and Microelectromechanical systems in the investigation of issues within Atomic clock. His Optoelectronics study combines topics in areas such as Vertical-cavity surface-emitting laser and Nonlinear optics. His research integrates issues of Laser cooling, Optical lattice, Excitation and Magnetic field in his study of Atomic physics.

He most often published in these fields:

  • Optics (57.93%)
  • Laser (45.45%)
  • Atomic clock (27.48%)

What were the highlights of his more recent work (between 2005-2021)?

  • Optics (57.93%)
  • Atomic clock (27.48%)
  • Laser (45.45%)

In recent papers he was focusing on the following fields of study:

Leo W. Hollberg mostly deals with Optics, Atomic clock, Laser, Atomic physics and Spectroscopy. Optics is frequently linked to Optoelectronics in his study. Within one scientific family, Leo W. Hollberg focuses on topics pertaining to Optical frequency comb under Optoelectronics, and may sometimes address concerns connected to Bandwidth.

His Atomic clock research incorporates themes from Ytterbium, Atom optics and Microelectromechanical systems. In Laser, Leo W. Hollberg works on issues like Spectrometer, which are connected to Absorption spectroscopy. His work deals with themes such as Energetic neutral atom, Optical lattice, Excitation, Magnetic field and Coupling, which intersect with Atomic physics.

Between 2005 and 2021, his most popular works were:

  • Molecular fingerprinting with the resolved modes of a femtosecond laser frequency comb (546 citations)
  • Single-Atom Optical Clock with High Accuracy (239 citations)
  • Direct excitation of the forbidden clock transition in neutral 174Yb atoms confined to an optical lattice. (189 citations)

In his most recent research, the most cited papers focused on:

  • Quantum mechanics
  • Laser
  • Optics

Leo W. Hollberg focuses on Optics, Laser, Atomic clock, Atomic physics and Spectroscopy. His work blends Optics and Population studies together. He combines subjects such as Phase noise, Optoelectronics, Diode and Spectrometer with his study of Laser.

The concepts of his Atomic clock study are interwoven with issues in Ytterbium, Ion, Resonance and Local oscillator. His Atomic physics research is multidisciplinary, incorporating perspectives in Absolute frequency, Optical lattice and Excitation. In the subject of general Spectroscopy, his work in Tunable diode laser absorption spectroscopy is often linked to Fine-structure constant, thereby combining diverse domains of study.

Best Publications

  • Observation of squeezed states generated by four-wave mixing in an optical cavity

    R. E. Slusher;L. W. Hollberg;B. Yurke;J. C. Mertz

  • Three-dimensional viscous confinement and cooling of atoms by resonance radiation pressure

    Steven Chu;L. Hollberg;J. E. Bjorkholm;Alex Cable

  • ULTRASLOW GROUP VELOCITY AND ENHANCED NONLINEAR OPTICAL EFFECTS IN A COHERENTLY DRIVEN HOT ATOMIC GAS

    Michael M. Kash;Michael M. Kash;Vladimir A. Sautenkov;Alexander S. Zibrov;Alexander S. Zibrov;L. Hollberg

  • Using diode lasers for atomic physics

    Carl E. Wieman;Leo Hollberg

  • An Optical Clock Based on a Single Trapped 199Hg+ Ion

    S. A. Diddams;Th. Udem;J. C. Bergquist;E. A. Curtis;E. A. Curtis

  • Molecular fingerprinting with the resolved modes of a femtosecond laser frequency comb

    Scott A. Diddams;Leo W. Hollberg;Vela Mbele;Vela Mbele;Vela Mbele

  • A microfabricated atomic clock

    Svenja Knappe;Vishal Shah;Peter D. D. Schwindt;Leo Hollberg

  • Frequency stabilization of semiconductor lasers by resonant optical feedback

    B. Dahmani;Leo W. Hollberg;R. E. Drullinger

  • Experimental demonstration of laser oscillation without population inversion via quantum interference in Rb

    A S. Zibrov;M D. Lukin;M D. Lukin;M D. Lukin;D E. Nikonov;D E. Nikonov;D E. Nikonov;Leo W. Hollberg

  • Architecture for the photonic integration of an optical atomic clock

    Zachary L. Newman;Vincent N. Maurice;Tara E. Drake;Jordan R. Stone

  • Chip-scale atomic magnetometer

    Peter D. D. Schwindt;Svenja Knappe;Vishal Shah;Leo Hollberg

  • Optical heterodyne saturation spectroscopy

    J. L. Hall;L. Hollberg;T. Baer;H. G. Robinson

  • Optical Frequency Synthesis and Comparison with Uncertainty at the 10-19 Level

    Long-Sheng Ma;Long-Sheng Ma;Zhiyi Bi;Albrecht Bartels;Lennart Robertsson

  • Absolute frequency measurements of the Hg+ and Ca optical clock transitions with a femtosecond laser.

    Th. Udem;S. A. Diddams;K. R. Vogel;C. W. Oates

  • Single-Atom Optical Clock with High Accuracy

    W. H. Oskay;S. A. Diddams;E. A. Donley;T. M. Fortier

  • Experimental demonstration of enhanced index of refraction via quantum coherence in Rb.

    A S. Zibrov;M D. Lukin;M D. Lukin;M D. Lukin;Leo W. Hollberg;D E. Nikonov;D E. Nikonov;D E. Nikonov

  • Microfabricated alkali atom vapor cells

    Li-Anne Liew;Svenja A. Knappe;John Moreland;Hugh Robinson

  • Spectroscopy in Dense Coherent Media: Line Narrowing and Interference Effects

    M D. Lukin;M D. Lukin;M Fleischhauer;M Fleischhauer;A S. Zibrov;A S. Zibrov;Hugh Robinson

  • Precision atomic spectroscopy for improved limits on variation of the fine structure constant and local position invariance.

    T. M. Fortier;T. M. Fortier;N. Ashby;J. C. Bergquist;M. J. Delaney

  • A chip-scale atomic clock based on 87Rb with improved frequency stability.

    Svenja A. Knappe;P Schwindt;V Shah;Leo W. Hollberg

Frequent Co-Authors

Scott A. Diddams
Scott A. Diddams University of Colorado Boulder
Marlan O. Scully
Marlan O. Scully Texas A&M University
John L. Hall
John L. Hall University of Colorado Boulder
Zoya Popovic
Zoya Popovic University of Colorado Boulder
Dmitri E. Nikonov
Dmitri E. Nikonov Intel (United States)
David J. Wineland
David J. Wineland University of Oregon
Frank K. Tittel
Frank K. Tittel Rice University
Andrew M. Weiner
Andrew M. Weiner Purdue University West Lafayette

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