World's Best Scientists 2026 revealed!
Akihisa Tomita

Akihisa Tomita

D-Index & Metrics

Engineering and Technology

D-Index
43
Citations
12284
World Ranking
6005
National Ranking
110

Akihisa Tomita 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 Akihisa Tomita 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: 284 publications — 73rd percentile

73% of scientists in this discipline score the same or lower.

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

Akihisa Tomita 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 Akihisa Tomita 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: 43 D-Index — 39th percentile

39% of scientists in this discipline score the same or lower.

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

Overview

What is he best known for?

The fields of study he is best known for:

  • Quantum mechanics
  • Optics
  • Photon

His scientific interests lie mostly in Optics, Quantum key distribution, Optoelectronics, Quantum cryptography and Photonic crystal. Optics and Condensed matter physics are commonly linked in his work. The Condensed matter physics study combines topics in areas such as Negative refraction, Photonic metamaterial and Order of magnitude.

His Quantum key distribution study integrates concerns from other disciplines, such as Computer network and Provisioning. His Quantum cryptography research is multidisciplinary, incorporating perspectives in Network architecture, Quantum network, Quantum sensor, Interference and Key. His Dispersion study combines topics from a wide range of disciplines, such as Four-wave mixing and Laser.

His most cited work include:

  • Superprism Phenomena in Photonic Crystals (811 citations)
  • Field test of quantum key distribution in the Tokyo QKD Network (642 citations)
  • Self-collimating phenomena in photonic crystals (602 citations)

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

The scientist’s investigation covers issues in Optics, Quantum key distribution, Optoelectronics, Photon and Quantum cryptography. Many of his studies on Optics involve topics that are commonly interrelated, such as Multiplexing. His Quantum key distribution research also works with subjects such as

  • Electronic engineering that connect with fields like Photonics,
  • Quantum network most often made with reference to Quantum channel.

The concepts of his Optoelectronics study are interwoven with issues in Avalanche photodiode, Detector and Quantum well. His Photon research focuses on subjects like Quantum information science, which are linked to Quantum information. His Quantum cryptography study incorporates themes from Interference and Cryptography.

He most often published in these fields:

  • Optics (51.05%)
  • Quantum key distribution (24.69%)
  • Optoelectronics (25.10%)

What were the highlights of his more recent work (between 2011-2021)?

  • Optics (51.05%)
  • Quantum key distribution (24.69%)
  • Multiplexing (8.37%)

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

His primary scientific interests are in Optics, Quantum key distribution, Multiplexing, Holography and Phase conjugation. His work in Optics is not limited to one particular discipline; it also encompasses Mode. He interconnects Quantum cryptography, BB84, Electronic engineering and Computer network in the investigation of issues within Quantum key distribution.

His work in Computer network tackles topics such as Term which are related to areas like Quantum channel. His studies examine the connections between Multiplexing and genetics, as well as such issues in Signal processing, with regards to Transmission quality, Computer simulation and Superposition principle. His Holography study combines topics in areas such as Spatial light modulator, Multiplexer, Signal and Transmission.

Between 2011 and 2021, his most popular works were:

  • High-Speed Quantum Key Distribution System for 1-Mbps Real-Time Key Generation (75 citations)
  • High-speed wavelength-division multiplexing quantum key distribution system (61 citations)
  • Evaluation of the phase randomness of a light source in quantum-key-distribution systems with an attenuated laser (22 citations)

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

  • Quantum mechanics
  • Optics
  • Photon

His primary areas of investigation include Optics, Quantum key distribution, Multiplexing, Wavelength-division multiplexing and Holography. The various areas that Akihisa Tomita examines in his Optics study include Phase detector and Phase modulation. His Quantum key distribution research incorporates elements of Quantum cryptography, BB84, Avalanche photodiode and Quantum efficiency.

His studies deal with areas such as Optoelectronics, Noise and Quantum information science as well as Avalanche photodiode. His work carried out in the field of Holography brings together such families of science as Wavelength, Demultiplexer and Mode. His Key research incorporates themes from Quantum and Computer network, Encryption.

Best Publications

  • Superprism Phenomena in Photonic Crystals

    Hideo Kosaka;Takayuki Kawashima;Akihisa Tomita;Masaya Notomi

  • Field test of quantum key distribution in the Tokyo QKD Network

    Sasaki M;Fujiwara M;Ishizuka H;Klaus W

  • Observation of modulational instability in optical fibers.

    K. Tai;A. Hasegawa;A. Tomita

  • Self-collimating phenomena in photonic crystals

    Hideo Kosaka;Takayuki Kawashima;Akihisa Tomita;Masaya Notomi;Masaya Notomi

  • Field test of quantum key distribution in the Tokyo QKD Network

    M. Sasaki;M. Fujiwara;H. Ishizuka;W. Klaus

  • Quantum information with Gaussian states

    Xiang-Bin Wang;Tohya Hiroshima;Akihisa Tomita;Masahito Hayashi

  • Photonic crystals for micro lightwave circuits using wavelength-dependent angular beam steering

    Hideo Kosaka;Takayuki Kawashima;Akihisa Tomita;Masaya Notomi;Masaya Notomi

  • Superprism phenomena in photonic crystals: toward microscale lightwave circuits

    H. Kosaka;T. Kawashima;A. Tomita;M. Notomi

  • Lightwave propagation through a 120° sharply bent single-line-defect photonic crystal waveguide

    Masatoshi Tokushima;Hideo Kosaka;Akihisa Tomita;Hirohito Yamada

  • Teleportation of an unknown state by W state

    Bao-Sen Shi;Akihisa Tomita

  • High-Threshold Fault-Tolerant Quantum Computation with Analog Quantum Error Correction

    Kosuke Fukui;Akihisa Tomita;Atsushi Okamoto;Keisuke Fujii

  • Balanced, gated-mode photon detector for quantum-bit discrimination at 1550 nm

    Akihisa Tomita;Kazuo Nakamura

  • Single-photon interference over 150 km transmission using silica-based integrated-optic interferometers for quantum cryptography

    Tadamasa Kimura;Yoshihiro Nambu;Takaaki Hatanaka;Akihisa Tomita

  • Single-photon interference experiment over 100 km for quantum cryptography system using balanced gated-mode photon detector

    H. Kosaka;A. Tomita;Y. Nambu;T. Kimura

  • Quantum key distribution with an efficient countermeasure against correlated intensity fluctuations in optical pulses

    Ken Ichiro Yoshino;Mikio Fujiwara;Kensuke Nakata;Tatsuya Sumiya

  • Ultra fast quantum key distribution over a 97 km installed telecom fiber with wavelength division multiplexing clock synchronization

    Akihiro Tanaka;Mikio Fujiwara;Sae Woo Nam;Yoshihiro Nambu

  • High-Speed Quantum Key Distribution System for 1-Mbps Real-Time Key Generation

    A. Tanaka;M. Fujiwara;K. Yoshino;S. Takahashi

  • THz optical-frequency conversion of 1 Gb/s-signals using highly nondegenerate four-wave mixing in an InGaAsP semiconductor laser

    S. Murata;A. Tomita;J. Shimizu;A. Suzuki

  • Analog Quantum Error Correction with Encoding a Qubit into an Oscillator.

    Kosuke Fukui;Akihisa Tomita;Atsushi Okamoto

  • Security in Photonic Networks: Threats and Security Enhancement

    K-I Kitayama;M. Sasaki;S. Araki;M. Tsubokawa

  • Remote state preparation of an entangled state

    Bao-Sen Shi;Akihisa Tomita

  • High-speed wavelength-division multiplexing quantum key distribution system

    Ken-ichiro Yoshino;Mikio Fujiwara;Akihiro Tanaka;Seigo Takahashi

Frequent Co-Authors

Mikio Fujiwara
Mikio Fujiwara National Institute of Information and Communications Technology
Masahide Sasaki
Masahide Sasaki National Institute of Information and Communications Technology
Shigehito Miki
Shigehito Miki National Institute of Information and Communications Technology
Masahito Hayashi
Masahito Hayashi Chinese University of Hong Kong, Shenzhen
Masaya Notomi
Masaya Notomi NTT (Japan)
Taro Yamashita
Taro Yamashita Tohoku University
Toshiaki Tamamura
Toshiaki Tamamura NTT Electronics
Kenichi Nishi
Kenichi Nishi NEC (Japan)
Yasuhiro Tokura
Yasuhiro Tokura University of Tsukuba
Jagdeep Shah
Jagdeep Shah Defense Advanced Research Projects Agency

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