World's Best Scientists 2026 revealed!
Yoshitomo Okawachi

Yoshitomo Okawachi

D-Index & Metrics

Engineering and Technology

D-Index
60
Citations
15239
World Ranking
2157
National Ranking
684

Yoshitomo Okawachi publication distribution in Engineering and Technology in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Engineering and Technology in 2026. The highlighted bar marks where Yoshitomo Okawachi sits on this spectrum.

38–47 publications: 20 scientists 48–57 publications: 35 scientists 58–67 publications: 96 scientists 68–77 publications: 135 scientists 78–87 publications: 190 scientists 88–97 publications: 259 scientists 98–107 publications: 283 scientists 108–117 publications: 369 scientists 118–127 publications: 341 scientists 128–137 publications: 386 scientists 138–147 publications: 372 scientists 148–157 publications: 457 scientists 158–167 publications: 415 scientists 168–177 publications: 407 scientists 178–187 publications: 421 scientists 188–197 publications: 378 scientists 198–207 publications: 403 scientists 208–217 publications: 317 scientists 218–227 publications: 346 scientists 228–237 publications: 321 scientists 238–247 publications: 260 scientists 248–257 publications: 280 scientists 258–267 publications: 240 scientists 268–277 publications: 214 scientists 278–287 publications: 242 scientists 288–297 publications: 203 scientists 298–307 publications: 166 scientists 308–317 publications: 154 scientists 318–327 publications: 175 scientists 328–337 publications: 159 scientists 338–347 publications: 99 scientists 348–357 publications: 131 scientists 358–367 publications: 106 scientists 368–377 publications: 118 scientists 378–387 publications: 97 scientists 388–397 publications: 108 scientists 398–407 publications: 82 scientists 408–417 publications: 71 scientists 418–427 publications: 64 scientists 428–437 publications: 55 scientists 438–447 publications: 54 scientists 448–457 publications: 60 scientists 458–467 publications: 47 scientists 468–477 publications: 40 scientists 478–487 publications: 30 scientists 488–497 publications: 29 scientists 498–507 publications: 38 scientists 508–517 publications: 40 scientists 518–527 publications: 32 scientists 528–537 publications: 23 scientists 538–547 publications: 28 scientists 548–557 publications: 23 scientists 558–567 publications: 19 scientists 568–577 publications: 16 scientists 578–587 publications: 17 scientists 588–597 publications: 18 scientists 598–607 publications: 22 scientists 608–617 publications: 15 scientists 618–627 publications: 9 scientists 628–637 publications: 11 scientists 638–647 publications: 21 scientists 648–657 publications: 12 scientists 658–667 publications: 9 scientists 668–677 publications: 11 scientists 678–687 publications: 9 scientists 688–697 publications: 6 scientists 698–707 publications: 14 scientists 708–717 publications: 7 scientists 718–727 publications: 8 scientists 728–737 publications: 10 scientists 738–747 publications: 9 scientists 748–757 publications: 5 scientists 758–767 publications: 5 scientists 768–777 publications: 11 scientists 778–787 publications: 7 scientists 788–797 publications: 2 scientists 798–803 publications: 4 scientists 804+ publications: 100 scientists
38 publications 804+

This scientist: 254 publications — 65th percentile

65% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 804 publications or more.

Yoshitomo Okawachi D-index placement in Engineering and Technology in 2026

The chart shows the D-index (discipline H-index) distribution of Engineering and Technology scientists ranked by Research.com in 2026. The highlighted bar marks where Yoshitomo Okawachi sits on this spectrum.

30 D-Index: 59 scientists 31 D-Index: 114 scientists 32 D-Index: 129 scientists 33 D-Index: 189 scientists 34 D-Index: 200 scientists 35 D-Index: 262 scientists 36 D-Index: 311 scientists 37 D-Index: 312 scientists 38 D-Index: 350 scientists 39 D-Index: 385 scientists 40 D-Index: 348 scientists 41 D-Index: 362 scientists 42 D-Index: 426 scientists 43 D-Index: 380 scientists 44 D-Index: 310 scientists 45 D-Index: 341 scientists 46 D-Index: 301 scientists 47 D-Index: 306 scientists 48 D-Index: 271 scientists 49 D-Index: 246 scientists 50 D-Index: 210 scientists 51 D-Index: 253 scientists 52 D-Index: 213 scientists 53 D-Index: 221 scientists 54 D-Index: 195 scientists 55 D-Index: 186 scientists 56 D-Index: 170 scientists 57 D-Index: 167 scientists 58 D-Index: 166 scientists 59 D-Index: 144 scientists 60 D-Index: 152 scientists 61 D-Index: 141 scientists 62 D-Index: 138 scientists 63 D-Index: 131 scientists 64 D-Index: 118 scientists 65 D-Index: 114 scientists 66 D-Index: 119 scientists 67 D-Index: 95 scientists 68 D-Index: 87 scientists 69 D-Index: 77 scientists 70 D-Index: 89 scientists 71 D-Index: 69 scientists 72 D-Index: 54 scientists 73 D-Index: 46 scientists 74 D-Index: 55 scientists 75 D-Index: 54 scientists 76 D-Index: 49 scientists 77 D-Index: 53 scientists 78 D-Index: 46 scientists 79 D-Index: 28 scientists 80 D-Index: 39 scientists 81 D-Index: 36 scientists 82 D-Index: 24 scientists 83 D-Index: 26 scientists 84 D-Index: 36 scientists 85 D-Index: 18 scientists 86 D-Index: 25 scientists 87 D-Index: 19 scientists 88 D-Index: 26 scientists 89 D-Index: 27 scientists 90 D-Index: 23 scientists 91 D-Index: 15 scientists 92 D-Index: 12 scientists 93 D-Index: 9 scientists 94 D-Index: 15 scientists 95 D-Index: 10 scientists 96 D-Index: 13 scientists 97 D-Index: 13 scientists 98 D-Index: 9 scientists 99 D-Index: 7 scientists 100 D-Index: 7 scientists 101 D-Index: 8 scientists 102 D-Index: 7 scientists 103 D-Index: 7 scientists 104 D-Index: 9 scientists 105 D-Index: 6 scientists 106 D-Index: 9 scientists 107+ D-Index: 99 scientists
30 D-Index 107+

This scientist: 60 D-Index — 78th percentile

78% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 107 D-Index or more.

Research.com Recognitions

  • 2021 - OSA Fellows Yoshitomo Okawachi Columbia University, USA For pioneering contributions to slow light based on stimulated scattering and chip-based optical frequency combs

Overview

Yoshitomo Okawachi is affiliated with Columbia University in the United States. Their research primarily spans the fields of Engineering and Physics and Astronomy, specializing in Atomic and Molecular Physics, and Optics as well as Electrical and Electronic Engineering. They also have contributions in Artificial Intelligence, Biomedical Engineering, and Biophysics.

Their work covers a range of topics including advanced fiber laser technologies, photonic and optical devices, mechanical and optical resonators, optical network technologies, laser-matter interactions and applications, photonic crystal and fiber optics, and advanced photonic communication systems.

Okawachi has contributed to multiple publications in notable scientific venues. Frequent publication venues include:

  • Conference on Lasers and Electro-Optics
  • arXiv (Cornell University)
  • Optica
  • Optics Letters
  • Nature

Selected recent papers highlight their involvement in cutting-edge photonics and optics research:

  • "Integrated femtosecond pulse generator on thin-film lithium niobate" (2022, Nature)
  • "Near-Degenerate Quadrature-Squeezed Vacuum Generation on a Silicon-Nitride Chip" (2020, Physical Review Letters)
  • "Massively scalable Kerr comb-driven silicon photonic link" (2023, Nature Photonics)
  • "Raman lasing and soliton mode-locking in lithium niobate microresonators" (2020, Light Science & Applications)
  • "Chip-based self-referencing using integrated lithium niobate waveguides" (2020, Optica)

Frequent collaborators in Okawachi's research include Alexander L. Gaeta, Michal Lipson, Xingchen Ji, Bok Young Kim, and Jae K. Jang. The volume of joint publications suggests ongoing and significant cooperative work within the photonics community.

Okawachi has been recognized as an OSA Fellow in 2021 for pioneering contributions to slow light based on stimulated scattering and chip-based optical frequency combs. This award acknowledges their specific advances within optical science and engineering disciplines.

Best Publications

  • Tunable all-optical delays via Brillouin slow light in an optical fiber.

    Yoshitomo Okawachi;Matthew S. Bigelow;Jay E. Sharping;Zhaoming Zhu

  • Battery-operated integrated frequency comb generator.

    Brian Stern;Xingchen Ji;Xingchen Ji;Yoshitomo Okawachi;Alexander L. Gaeta

  • Broadband mid-infrared frequency comb generation in a Si(3)N(4) microresonator.

    Kevin Luke;Yoshitomo Okawachi;Michael R E Lamont;Alexander L Gaeta

  • Octave-spanning frequency comb generation in a silicon nitride chip.

    Yoshitomo Okawachi;Kasturi Saha;Jacob S Levy;Y Henry Wen

  • Ultra-low-loss on-chip resonators with sub-milliwatt parametric oscillation threshold

    Xingchen Ji;Felippe A. S. Barbosa;Samantha P. Roberts;Avik Dutt

  • Silicon-chip mid-infrared frequency comb generation

    Austin G. Griffith;Ryan K.W. Lau;Jaime Cardenas;Yoshitomo Okawachi

  • Wide bandwidth slow light using a Raman fiber amplifier

    Jay E. Sharping;Yoshitomo Okawachi;Alexander L. Gaeta

  • On-chip dual-comb source for spectroscopy

    Avik Dutt;Avik Dutt;Chaitanya Joshi;Chaitanya Joshi;Xingchen Ji;Xingchen Ji;Jaime Cardenas

  • Thermally controlled comb generation and soliton modelocking in microresonators.

    Chaitanya Joshi;Jae K Jang;Kevin Luke;Xingchen Ji

  • Silicon-chip-based mid-infrared dual-comb spectroscopy.

    Mengjie Yu;Yoshitomo Okawachi;Austin G. Griffith;Nathalie Picqué

  • Fully integrated ultra-low power Kerr comb generation

    Brian Stern;Xingchen Ji;Yoshitomo Okawachi;Alexander L. Gaeta

  • Breaking the Loss Limitation of On-chip High-confinement Resonators

    Xingchen Ji;Felippe A. S. Barbosa;Samantha P. Roberts;Avik Dutt

  • Modelocking and femtosecond pulse generation in chip-based frequency combs.

    Kasturi Saha;Yoshitomo Okawachi;Bonggu Shim;Jacob S. Levy

  • Demonstration of temporal cloaking

    Moti Fridman;Alessandro Farsi;Yoshitomo Okawachi;Alexander L. Gaeta

  • Ultrabroadband supercontinuum generation in a CMOS-compatible platform

    R. Halir;Y. Okawachi;J. S. Levy;M. A. Foster

  • Route to stabilized ultrabroadband microresonator-based frequency combs

    Michael R. E. Lamont;Yoshitomo Okawachi;Alexander L. Gaeta

  • Mode-locked mid-infrared frequency combs in a silicon microresonator

    Mengjie Yu;Yoshitomo Okawachi;Austin G. Griffith;Michal Lipson

  • All-optical slow-light on a photonic chip

    Yoshitomo Okawachi;Mark A. Foster;Jay E. Sharping;Alexander L. Gaeta

  • All-optical, wavelength and bandwidth preserving, pulse delay based on parametric wavelength conversion and dispersion.

    Jay E. Sharping;Yoshitomo Okawachi;James van Howe;Chris Xu

  • Octave-spanning coherent supercontinuum generation in a silicon nitride waveguide

    Adrea R. Johnson;Aline S. Mayer;Alexander Klenner;Kevin Luke

  • Silicon-Chip Mid-Infrared Frequency Comb Generation

    Austin G. Griffith;Ryan K. W. Lau;Jaime Cardenas;Yoshitomo Okawachi

  • Diamond Nonlinear Photonics

    Marko Loncar;Pawel Latawiec;Vivek Venkataraman;Michael Burek

Frequent Co-Authors

Alexander L. Gaeta
Alexander L. Gaeta Columbia University
Michal Lipson
Michal Lipson Columbia University
Mark A. Foster
Mark A. Foster Johns Hopkins University
Marko Loncar
Marko Loncar Harvard University
Ursula Keller
Ursula Keller ETH Zurich
Chris Xu
Chris Xu Cornell University
Keren Bergman
Keren Bergman Columbia University
Robert W. Boyd
Robert W. Boyd University of Ottawa
Carsten Langrock
Carsten Langrock Keysight Technologies (United States)
Martin M. Fejer
Martin M. Fejer Stanford University

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