D-Index & Metrics Best Publications

D-Index & Metrics

Discipline name D-index D-index (Discipline H-index) only includes papers and citation values for an examined discipline in contrast to General H-index which accounts for publications across all disciplines. Citations Publications World Ranking National Ranking
Electronics and Electrical Engineering D-index 52 Citations 10,529 529 World Ranking 1019 National Ranking 38

Research.com Recognitions

Awards & Achievements

2020 - OSA Fellows Fumio Koyama Tokyo Institute of Technology, Japan For seminal contributions to VCSEL photonics and integration

Overview

What is he best known for?

The fields of study he is best known for:

  • Optics
  • Laser
  • Optoelectronics

Optoelectronics, Laser, Optics, Semiconductor laser theory and Vertical-cavity surface-emitting laser are his primary areas of study. His research links Quantum well with Optoelectronics. His study looks at the intersection of Laser and topics like Chemical vapor deposition with Metalorganic vapour phase epitaxy, Wafer and Layer.

His Semiconductor laser theory research is multidisciplinary, incorporating elements of Molecular beam epitaxy, Heterojunction, Continuous wave, Dielectric and Superlattice. The various areas that Fumio Koyama examines in his Vertical-cavity surface-emitting laser study include Longitudinal mode, Extinction ratio and Bandwidth. His Distributed Bragg reflector research is multidisciplinary, incorporating perspectives in Reactive-ion etching and Active layer.

His most cited work include:

  • Surface emitting semiconductor lasers (528 citations)
  • Frequency chirping in external modulators (412 citations)
  • Recent Advances of VCSEL Photonics (313 citations)

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

Fumio Koyama mainly investigates Optoelectronics, Optics, Laser, Vertical-cavity surface-emitting laser and Wavelength. His Optoelectronics study often links to related topics such as Quantum well. His work carried out in the field of Quantum well brings together such families of science as Chemical beam epitaxy and Photoluminescence.

Fumio Koyama focuses mostly in the field of Laser, narrowing it down to topics relating to Metalorganic vapour phase epitaxy and, in certain cases, Chemical vapor deposition. As part of one scientific family, Fumio Koyama deals mainly with the area of Vertical-cavity surface-emitting laser, narrowing it down to issues related to the Beam, and often Scanner. His Wavelength-division multiplexing study in the realm of Wavelength connects with subjects such as Cantilever.

He most often published in these fields:

  • Optoelectronics (80.94%)
  • Optics (67.32%)
  • Laser (39.65%)

What were the highlights of his more recent work (between 2013-2021)?

  • Optics (67.32%)
  • Optoelectronics (80.94%)
  • Vertical-cavity surface-emitting laser (38.01%)

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

His primary areas of investigation include Optics, Optoelectronics, Vertical-cavity surface-emitting laser, Slow light and Wavelength. In his papers, Fumio Koyama integrates diverse fields, such as Optics and Transverse plane. His studies deal with areas such as Bandwidth, Laser and Voltage as well as Optoelectronics.

His Vertical-cavity surface-emitting laser study also includes fields such as

  • Modulation and related Radio over fiber,
  • Laser beam quality, which have a strong connection to Beam diameter. His Slow light research incorporates themes from Semiconductor and Waveguide. His Wavelength research incorporates elements of Polarization and Mechanical resonance.

Between 2013 and 2021, his most popular works were:

  • High-speed operation of bow-tie-shaped oxide aperture VCSELs with photon–photon resonance (44 citations)
  • High-speed operation of bow-tie-shaped oxide aperture VCSELs with photon–photon resonance (44 citations)
  • Highly angular dependent high-contrast grating mirror and its application for transverse-mode control of VCSELs (30 citations)

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

  • Optics
  • Laser
  • Optoelectronics

His scientific interests lie mostly in Optics, Optoelectronics, Vertical-cavity surface-emitting laser, Laser and Wavelength. His work on Distributed Bragg reflector, Slow light, Waveguide and Beam is typically connected to Transverse plane as part of general Optics study, connecting several disciplines of science. Fumio Koyama has researched Optoelectronics in several fields, including Laser beam quality and Bandwidth.

Fumio Koyama has included themes like Modulation, Optical amplifier, Oscillation, Electro-absorption modulator and Amplifier in his Vertical-cavity surface-emitting laser study. The various areas that he examines in his Laser study include Substrate, Detector, Insertion loss and Gigabit. His research investigates the connection between Wavelength and topics such as Polarization that intersect with issues in Diffraction, Multi-mode optical fiber, Hollow waveguide and Optical coupler.

This overview was generated by a machine learning system which analysed the scientist’s body of work. If you have any feedback, you can contact us here.

Best Publications

Surface emitting semiconductor lasers

K. Iga;F. Koyama;S. Kinoshita.
IEEE Journal of Quantum Electronics (1988)

944 Citations

Frequency chirping in external modulators

F. Koyama;K. Iga.
Journal of Lightwave Technology (1988)

590 Citations

Recent Advances of VCSEL Photonics

F. Koyama.
Journal of Lightwave Technology (2006)

448 Citations

Room-temperature continuous wave lasing characteristics of a GaAs vertical cavity surface-emitting laser

Fumio Koyama;Susumu Kinoshita;Kenichi Iga.
Applied Physics Letters (1989)

403 Citations

Spontaneous emission factor of a microcavity DBR surface-emitting laser

T. Baba;T. Hamano;F. Koyama;K. Iga.
IEEE Journal of Quantum Electronics (1991)

317 Citations

Electron reflectance of multiquantum barrier (MQB)

K. Iga;H. Uenohara;F. Koyama.
Electronics Letters (1986)

229 Citations

Record low-threshold index-guided InGaAs/GaAlAs vertical-cavity surface-emitting laser with a native oxide confinement structure

Y. Hayashi;T. Mukaihara;N. Hatori;N. Ohnoki.
Electronics Letters (1995)

213 Citations

1.5 μm phase-shifted DFB lasers for single-mode operation

K. Sekartedjo;N. Eda;K. Furuya;Y. Suematsu.
Electronics Letters (1984)

198 Citations

Microcavity GalaAs/GaAs surface-emitting laser with Ith = 6 mA

K. Iga;S. Kinoshita;F. Koyama.
Electronics Letters (1987)

149 Citations

1.5-1.6 µm GaInAsP/InP dynamic-single-mode (DSM) lasers with distributed Bragg reflector

F. Koyama;Y. Suematsu;S. Arai;T. Tawee.
IEEE Journal of Quantum Electronics (1983)

146 Citations

Best Scientists Citing Fumio Koyama

Kenichi Iga

Kenichi Iga

Tokyo Institute of Technology

Publications: 70

Kent D. Choquette

Kent D. Choquette

University of Illinois at Urbana-Champaign

Publications: 67

Toshihiko Baba

Toshihiko Baba

Yokohama National University

Publications: 61

Connie J. Chang-Hasnain

Connie J. Chang-Hasnain

University of California, Berkeley

Publications: 58

Larry A. Coldren

Larry A. Coldren

University of California, Santa Barbara

Publications: 58

Shigehisa Arai

Shigehisa Arai

Tokyo Institute of Technology

Publications: 55

John E. Bowers

John E. Bowers

University of California, Santa Barbara

Publications: 40

James S. Harris

James S. Harris

Australian Nuclear Science and Technology Organisation

Publications: 40

Anders Larsson

Anders Larsson

Uppsala University

Publications: 35

Karl Joachim Ebeling

Karl Joachim Ebeling

University of Ulm

Publications: 33

Alfred Forchel

Alfred Forchel

University of Würzburg

Publications: 31

Dennis G. Deppe

Dennis G. Deppe

University of Central Florida

Publications: 29

Dieter Bimberg

Dieter Bimberg

Chinese Academy of Sciences

Publications: 29

Nelson Tansu

Nelson Tansu

University of Adelaide

Publications: 27

Markus-Christian Amann

Markus-Christian Amann

Technical University of Munich

Publications: 26

Hao-Chung Kuo

Hao-Chung Kuo

National Yang Ming Chiao Tung University

Publications: 25

Profile was last updated on December 6th, 2021.
Research.com Ranking is based on data retrieved from the Microsoft Academic Graph (MAG).
The ranking d-index is inferred from publications deemed to belong to the considered discipline.

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