2026

1. Apr 2026Paper

   Ultrastrong Light–Matter Coupling in Near-Field Coupled Split-Ring Resonators Revealed by Photocurrent Spectroscopy

   ACS Photonics
   Jing Huang; Jinkwan Kwoen; Yasuhiko Arakawa; Kazuhiko Hirakawa; Kazuyuki Kuroyama

2. Apr 2026 – PresentCareer

   Senior Researcher

   Optical Access Technology Laboratory
   Photonic ICT Research Center
   Network Research Institute
   National Institute of Information and Communications Technology (NICT)

3. Feb 2026Paper

   Ultrastrong coupling between magnetoplasmons and cyclotron harmonics in terahertz resonator-quantum point contact integrated systems

   Communications Physics
   Kazuyuki Kuroyama; Motoaki Bamba; Jinkwan Kwoen; Yasuhiko Arakawa; Kazuhiko Hirakawa

2025

1. Dec 2025Paper

   Growth and application of quantum dot lasers for silicon photonic integrated circuits

   Japanese Journal of Applied Physics
   Jinkwan Kwoen; Yasuhiko Arakawa

2. May 2025Paper

   C-band All III-Arsenide InAs Quantum Dot Lasers on InP using Low Indium Composition Partial Capping

   Electronics Letters
   Jinkwan Kwoen; Jihye Jung; Masahiro Kakuda; Yasuhiko Arakawa

3. Apr 2025Paper

   Wide-range Emission Wavelength Control of InAs Quantum Dots by Changing Indium Composition in InAlGaAs Capping Layer

   Optical Materials Express
   Jinkwan Kwoen; Masahiro Kakuda; Yasuhiko Arakawa

4. Apr 2025 – Mar 2026Career

   Associate Professor (Project)

   Department of Applied Physics and Physico-Informatics
   Faculty of Science and Technology
   Keio University

5. Mar 2025Paper

   Chiral terahertz photocurrent in quantum point contact–split ring resonator coupled systems in the quantum Hall regime

   Physical Review B
   Jing Huang; Jinkwan Kwoen; Yasuhiko Arakawa; Kazuhiko Hirakawa; Kazuyuki Kuroyama

2024

1. Oct 2024Paper

   In situ monitoring of quantum dot growth using a magnification inferred curvature method

   Applied Physics Letters
   Jinkwan Kwoen; Yasuhiko Arakawa

2. Feb 2024Paper

   Coherent Interaction of a Few-Electron Quantum Dot with a Terahertz Optical Resonator

   Physical Review Letters
   Kazuyuki Kuroyama; Jinkwan Kwoen; Yasuhiko Arakawa; Kazuhiko Hirakawa

3. Jan 2024Paper

   Hybrid distributed Bragg reflector laser on Si with a transfer printed InAs/GaAs quantum dot amplifier

   Optics Express
   Natalia Morais; Junichi Fujikata; Jinkwan Kwoen; Takahiro Nakamura; Yasutomo Ota; Yasuhiko Arakawa

2023

1. Nov 2023Paper

   Electrical Detection of Ultrastrong Coherent Interaction between Terahertz Fields and Electrons Using Quantum Point Contacts

   Nano Letters
   Kazuyuki Kuroyama; Jinkwan Kwoen; Yasuhiko Arakawa; Kazuhiko Hirakawa

2. Sep 2023Paper

   Enhanced temperature stability of threshold current of InAs/GaAs quantum dot lasers by AlGaAs lateral potential barrier layers

   Optics Express
   Masahiro Kakuda; Natalia Morais; Jinkwan Kwoen; Yasuhiko Arakawa

3. Aug 2023Paper

   All III‐arsenide low threshold InAs quantum dot lasers on InP(001)

   Electronics Letters
   Jinkwan Kwoen; Natália Morais; Wenbo Zhan; Satoshi Iwamoto; Yasuhiko Arakawa

2022

1. Sep 2022Paper

   Multiclass classification of reflection high-energy electron diffraction patterns using deep learning

   Journal of Crystal Growth
   Jinkwan Kwoen; Yasuhiko Arakawa

2. Apr 2022 – Mar 2025Career

   Associate Professor (Project)

   Institute for Nano Quantum Information Electronics
   The University of Tokyo

2021

1. Oct 2021Paper

   E‐Band InAs/GaAs Trilayer Quantum Dot Lasers

   physica status solidi (a)
   Wenbo Zhan; Jinkwan Kwoen; Takaya Imoto; Satoshi Iwamoto; Yasuhiko Arakawa

2. Aug 2021Paper

   InAs/InGaAs Quantum Dot Lasers on Multi-Functional Metamorphic Buffer Layers

   Optics Express
   Jinkwan Kwoen; Takaya Imoto; Yasuhiko Arakawa

3. Apr 2021Paper

   E‐band InAs quantum dot laser on InGaAs metamorphic buffer layer with filter layer

   Electronics Letters
   J. Kwoen; W. Zhan; Y. Arakawa

2020

1. May 2020Paper

   Classification of Reflection High-Energy Electron Diffraction Pattern Using Machine Learning

   Crystal Growth & Design
   Jinkwan Kwoen; Yasuhiko Arakawa

2. Apr 2020Paper

   The 1200 nm‐Band InAs/GaAs Quantum Dot Intermixing by Dry Etching and Ion Implantation

   physica status solidi (a)
   Yu Hiraishi; Tomohiro Shirai; Jinkwan Kwoen; Taisei Ito; Yuichi Matsushima; Hiroshi Ishikawa; Yasuhiko Arakawa; Katsuyuki Utaka

2019

1. Oct 2019Paper

   Emission at 1.6 μm from InAs Quantum Dots in Metamorphic InGaAs Matrix

   physica status solidi (b)
   Wenbo Zhan; Satomi Ishida; Jinkwan Kwoen; Katsuyuki Watanabe; Satoshi Iwamoto; Yasuhiko Arakawa

2. Apr 2019 – Mar 2022Career

   Lecturer (Project)

   Institute for Nano Quantum Information Electronics
   The University of Tokyo

3. Mar 2019Paper

   Elimination of anti-phase boundaries in a GaAs layer directly-grown on an on-axis Si(001) substrate by optimizing an AlGaAs nucleation layer

   Japanese Journal of Applied Physics
   Jinkwan Kwoen; Joohang Lee; Katsuyuki Watanabe; Yasuhiko Arakawa

4. Jan 2019Paper

   High-temperature continuous-wave operation of directly grown InAs/GaAs quantum dot lasers on on-axis Si (001)

   Optics Express
   Jinkwan Kwoen; Bongyong Jang; Katsuyuki Watanabe; Yasuhiko Arakawa

2018

1. Nov 2018Paper

   InAs/GaAs quantum dot infrared photodetectors on on-axis Si (100) substrates

   Electronics Letters
   H. Yoshikawa; J. Kwoen; T. Doe; M. Izumi; S. Iwamoto; Y. Arakawa

2. Apr 2018Paper

   All MBE grown InAs/GaAs quantum dot lasers on on-axis Si (001)

   Optics Express
   Jinkwan Kwoen; Bongyong Jang; Joohang Lee; Takeo Kageyama; Katsuyuki Watanabe; Yasuhiko Arakawa

2015

1. Apr 2015 – Mar 2019Career

   Assistant Professor (Project)

   Institute for Nano Quantum Information Electronics
   The University of Tokyo

2013

1. Oct 2013Paper

   Growth of high‐quality InAs quantum dots embedded in GaAs nanowire structures on Si substrates

   physica status solidi (c)
   Jinkwan Kwoen; Katsuyuki Watanabe; Yasutomo Ota; Satoshi Iwamoto; Yasuhiko Arakawa

2. Sep 2013Paper

   Non-VLS growth of GaAs nanowires on silicon by a gallium pre-deposition technique

   Journal of Crystal Growth
   Jinkwan Kwoen; Katsuyuki Watanabe; Satoshi Iwamoto; Yasuhiko Arakawa

2012

1. Apr 2012 – Mar 2015Education

   Ph.D. Student

   Department of Electrical Engineering and Information Systems
   Graduate School of Engineering
   The University of Tokyo

2010

1. Apr 2010 – Mar 2012Education

   M.E. Student

   Department of Electrical Engineering and Information Systems
   Graduate School of Engineering
   The University of Tokyo

2006

1. Apr 2006 – Mar 2010Education

   B.E. Student

   Department of Applied Physics
   Faculty of Engineering
   Tokyo University of Agriculture and Technology