Welcome to Tonouchi lab!

Through use of cutting-edge THz/nano technology, exploring Terahertz (THz) science in advanced electronic materials and developing novel THz devices and systems for sensing, imaging, and other applications are our main area of interest. The materials and devices include quantum/nano semiconductors, strongly correlated electron systems, superconductors,bio-molecules, etc.
Tonouchi Lab has been establised in 2000, May, to explore and open the filed of "Superconductor Photonics", which harmonizes superconductive electronics and optoelectronics. As a unique project at Osaka University, Research Center for Superconductor Photonics has been established in 2000 with a mission to form new research field as “Superconductor Photonics”. The center and Institute of Laser Engineering has been unified 1st, July, 2004. Our “Terahertz Photonics” laboratory succeeds the mission and, further, extends it to a new direction.

As for the original mission, we specializes development of superconductive photonic devices. High-Tc superconductors (HTSs) are indispensable materials for such optical application. Thus we study, first of all, their optical properties such as optically excited terahertz emission effect. Then we apply the new functionality to the applications. We have chosen one of research targets to develop optical interface to single quantum flux quantum (SFQ) circuits. We also examine basics for sub-THz wireless communication using HTS Josephson junctions.

As for the new direction, we explore material science and optical functionalities of various electronic materials, especially perovskites oxides such as manganites, multiferroics, ferroelectrics and extend the research field to terahertz science and technology of strongly correlated electron systems. Furthermore, we develop several experimental tools especially for superconductor photonics and terahertz science.

Prof. Masayoshi Tonouchi


Prof. Masayoshi Tonouchi
World Scientist Ranking: 21,570th among 8,547,891
Baas, Jeroen; Boyack, Kevin; Ioannidis, John P.A. (2021), Mendeley Data, V3, doi: 10.17632/btchxktzyw.3

Research topics

(1) Cultivation of Terahertz Biotechnology
(2) Frontier of Terahertz Nanoscience
(3) Ultrafast Semiconductor Spatio-Temporal Analysis
(4) Industry-Academia Collaboration


●Jun 2022:Paper has published as Journal of Physics: Photonics.
Press Release : https://resou.osaka-u.ac.jp/en/research/2022/20220628_2

● "The international workshop on Terahertz Nanoscience" will be held on June 9th, at Osaka University, Institute of Laser Engineering.

●May 2022:Paper has published as
Journal of Applied Physics

●April 2022:Paper has published as Photonics.

●March 2022 : Paper has published as Optics Continuum, selected as Editor's Pick.

●December 2021 : Paper has published as AIP Advances.

●October 2021 : Prof. Tonouchi's book has been published.

●September 2021 : Paper has published as Journal of Applied Physics (IF 2.5)

●August 2021 : Paper has published as Journal of Applied Physics (IF 2.5)

●June 2021:Paper has published as
Journal of Infrared, Millimeter
Appl. Phys. Express
J. Appl. Phys. 129, 245702 (2021)

●May 2021:Paper has published as
Advanced Optical Materials (IF9.9)
Photonics 2021, 8(5), 151

●Apr.2021 : Paper has published as Applied Physics Letters (IF3.8)

●Mar.2021:Paper has published as Nature Electronics(IF27.5)

●Feb.2021:Dr. Kazunori Serita's research proposal was granted in Fusion Oriented REsearch for disruptive Science and Technology (FOREST) supported by Japan Science and Technology Agency (JST).

●Jan.2021:Paper has published as Scientific Reports 11, 498 (2021)

●Nov.2020:Paper has published as Biophysical Journal 119, 1-14, December 15, 2020

●Oct. 2020:Paper has been published as
Journal of Physics: Photonics, 2(4), 044008 - 044008(2020)
Press Release:https://resou.osaka-u.ac.jp/en/research/2020/20201022_2

●Sept. 2020: Paper has been published as
Scientific Reports 10, 14633 (2020)
Photonics 2020, 7, 73

●Aug. 2020: Paper has been published as Photonics Research 8, 1448-1456 (2020)


●Jun. 2020: Paper has been published as Journal of Applied Physics 127, 245703 (2020)

●May 2020: Paper has been published as Nano Letters 20(5), 3098-3105(2020).
Press Release:https://resou.osaka-u.ac.jp/en/research/2020/20200430_3

●Mar. 2020 Papers have been published as
Advanced Optical Materials 8(3) 1900958(2020).
Advanced Optical Materials 8(3) 1900892(2020).

●Please check the Special issues on “Real-World Applications of THz Systems”(Journal of Infrared, Millimeter, and Terahertz Waves)DOI: https://doi.org/10.1007/s10762-020-00687-1 and “Terahertz Photonics” (MDPI) DOI: https://www.mdpi.com/journal/photonics/special_issues/THzP ; Guest Editor of Masayoshi Tonouchi.

●Our research papers are published as follows.
- D. S. Rana, Masayoshi Tonouchi
"Terahertz Emission Functionality of High-Temperature Superconductors and Similar Complex Systems. "
Advanced Optical Materials, 2019

- Kadakuntla Santhosh Kumar, Gulloo Lal Prajapati, Rahul Dagar, Megha Vagadia, Dhanvir Singh Rana, Masayoshi Tonouchi
"Terahertz Electrodynamics in Transition Metal Oxides”
Advanced Optical Materials, 2019

- Kosuke Okada, Kazunori Serita, Zirui Zang, Hironaru Murakami, Iwao Kawayama1 Quentin Cassar, Gaëtan Macgrogan, Jean-Paul Guillet, Patrick Mounaix and Masayoshi Tonouchi
“Scanning laser terahertz near-field reflection imaging system"
Applied Physics Express, 12 122005, 2019.


●Our research is shown on the Journal of Applied Physics Editors-Pick. April 2019


●Our research collaborated with University of Hyogo is shown on the Applied Physics Letters as Editor's Pick. July 2018


●Our resaerch is shown on the APL Photonics online Feb. 2018

 This study was introduced in the world.


Workshop/Lecture Information