40. Akinori Sehoji, Takao Fuji, Tetsuhiro Kudo, in preparation.

39. Adem Dahi, Yuto Shimizu, Takao Fuji, Tetsuhiro Kudo, "Mid-infrared optical tweezers," submitted.

38. Takuma Goto, Yoshua Albert Darmawan, Taiki Yanagishima, Takao Fuji, and Tetsuhiro Kudo, "Enhancement of mid-infrared optical force within the Reststrahlen band," Physical Review A 114, 023508 (2026).

37. Neil Irvin Cabello, Shinta Ozawa, Takao Fuji, Tetsuhiro Kudo, "Background-free absorption spectroscopy with strongly absorption media, " Opt. Continuum 5, 2219-2231 (2026) , selected as Editors' Pick.

36. Tetsuhiro Kudo, “Optical manipulation based on molecular vibrational resonance using mid-infrared lasers,” The Review of Laser Engineering 53 (9), 495-500 (2025).

35. Yoshua Albert Darmawan, Takuma Goto, Taiki Yanagishima, Takao Fuji, and Tetsuhiro Kudo, "Mid-infrared optical force chromatography using evanescent waves for sorting particles by molecular species," Proc. SPIE 13580, Optical Trapping and Optical Micromanipulation XXII, 29-32 (Sept. 2025).

34. Yoshua Albert Darmawan, Taiki Yanagishima, Takao Fuji, and Tetsuhiro Kudo, "Proposed Method for Label-Free Separation and Infrared Spectroscopy of Carbonyl-Containing Micro- and Nanoparticles Using Mid-Infrared Optical Force,"  Anal. Chem. 97, 14658–14665 (2025).

33. Shuichi Toyouchi, Hsuan-Yin Wang, Tetsuhiro Kudo, Hiroshi Masuhara, “Reconfigurable optical matter of polystyrene microparticles fabricated by optical trapping at solution surface,” Photochemical & Photobiological Sciences 24, 693-703 (2025).

32. Roukuya Mamuti, Masaya Shimizu, Takao Fuji, and Tetsuhiro Kudo, "Opto-thermal manipulation with 3 μm mid-infrared Er:ZBLAN fiber laser," Optics Express 32, 12160-12171(2024), first two authors are contributed equally.

31. Chih-Hao Huang, Ya-Chiao Lee, Tetsuhiro Kudo, Teruki Sugiyama, Hiroshi Masuhara, “Two co-propagating trapping laser beams control optical swarming morphology of gold nanoparticles,” Appl. Phys. Express 16, 092003 (2023).

30. Chih-Hao Huang, Ya-Chiao Lee, Tetsuhiro Kudo, Xu Shi, Kosei Ueno, Teruki Sugiyama, Hiroaki Misawa, Hiroshi Masuhara, “Unidirectional Optical Swarming of Gold Nanoparticles on Lithographically Fabricated Gold Nanopatterns,” J. Phys. Chem. C. 127, 19044-19054 (2023).

29. Tetsuhiro Kudo, Boris Louis, Hikaru Sotome, Jim Jui-Kai Chen, Syoji Ito, Hiroshi Miyasaka, Hiroshi Masuhara, Johan Hofkens, Roger Bresolí-Obach, “Gaining control on optical force by the stimulated-emission resonance effect,” Chemical Science 14, 10087-10095 (2023).

28. Yoshua Albert Darmawan, Takuma Goto, Taiki Yanagishima, Takao Fuji, and Tetsuhiro Kudo, "Mid-Infrared Optical Force Chromatography of Microspheres Containing Siloxane Bonds," J. Phys. Chem. Lett. 14, 7306−7312 (2023), selected as Front Cover.

27. Yoshua Albert Darmawan, Takuma Goto, Taiki Yanagishima, Takao Fuji, and Tetsuhiro Kudo, "Midinfrared optical force for sorting materials depending on their chemical structures," in Conference on Lasers and Electro-Optics/Europe (CLEO/Europe 2023) and European Quantum Electronics Conference (EQEC 2023), Technical Digest Series (Optica Publishing Group, 2023), paper eg_6_3.

26. Boris Louis, Chih-Hao Huang, Rafael Camacho, Ivan G Scheblykin, Teruki Sugiyama, Tetsuhiro Kudo, Marc Melendez, Rafael Delgado-Buscalioni, Hiroshi Masuhara, Johan Hofkens, Roger Bresoli-Obach, “Unravelling 3D Dynamics and Hydrodynamics during Incorporation of Dielectric Particles to an Optical Trapping Site,” ACS Nano 17, 3797-3808 (2023).

25. Anna Statsenko, Yoshua Albert Darmawan, Takao Fuji, and Tetsuhiro Kudo, "Midinfrared optical manipulation based on molecular vibrational resonance," Physical Review Applied 18, 054041 (2022). 豊田工業大学のHPからプレスリリースされました。

24.  Roukuya Mamuti, Takao Fuji, and Tetsuhiro Kudo "2μm Tm-doped fiber laser trapping of colloidal particles by temperature gradient,"  Proc. SPIE 12479, Optical Manipulation and Structured Materials Conference (OMC 2022), 124790N (8 December 2022).

23. Chih-Hao Huang, Boris Louis, Roger Bresolí-Obach, Tetsuhiro Kudo, R. Camacho, Ivan G. Scheblykin, Teruki Sugiyama, Johan Hofkens, Hiroshi Masuhara, “The primeval optical evolving matter by optical binding inside and outside the photon beam,” Nature Communications 13, 5325 (2022).

22. Yu-Chia Chang, Roger Bresolí-Obach, Tetsuhiro Kudo, Johan Hofkens, Shuichi Toyouchi, and Hiroshi Masuhara “The Optical Absorption Force Allows Controlling Colloidal Assembly Morphology at an Interface,” Advanced Optical Materials 10, 2200231 (2022).

21. Roukuya Mamuti, Takao Fuji, and Tetsuhiro Kudo "Opto-thermophoretic trapping of micro and nanoparticles with a 2 µm Tm-doped fiber laser," Optics Express 29, 38314-38323 (2021).

20. Chih-Hao Huang, Tetsuhiro Kudo, Teruki Sugiyama, Hiroshi Masuhara, Johan Hofkens, Roger Bresolí-Obach, “Photon Momentum Dictates the Shape of Swarming Gold Nanoparticles in Optical Trapping at an Interface,” J. Phys. Chem. C 125, 19013-19021 (2021).

19. Po-Wei Yi, Wei-Hsiang Chiu, Tetsuhiro Kudo, Teruki Sugiyama, Roger Bresolí-Obach, Johan Hofkens, Eri Chatani, Ryohei Yasukuni, Yoichiroh Hosokawa, Shuichi Toyouchi, Hiroshi Masuhara, “Cooperative Optical Trapping of Polystyrene Microparticle and Protein Forming a Submillimeter Linear Assembly of Microparticle,” J. Phys. Chem. C 125, 18988-18999 (2021).

18. Abdullah Kamit, Ching-Shiang Tseng, Tetsuhiro Kudo, Teruki Sugiyama, Johan Hofkens, Roger Bresolí-Obach, Hiroshi Masuhara, “Unraveling the three-dimensional morphology and dynamics of the optically evolving polystyrene nanoparticle assembly using dual-objective lens microscopy,” J. Chin. Chem. Soc. 1 (2021).

17. Roger Bresolí-Obach, Tetsuhiro Kudo, Boris Louis, Yu-Chia Chang, Ivan G. Scheblykin, Hiroshi Masuhara, Johan Hofkens, “Resonantly Enhanced Optical Trapping of Single Dye-Doped Particles at an Interface,” ACS Photonics 8, 1832-1839 (2021).　

16. Jim Jui-Kai Chen, Wei-Yi Chiang, Tetsuhiro Kudo, Anwar Usman, Hiroshi Masuhara, “Nanoparticle Assembling Dynamics Induced by Pulsed Optical Force,” The Chemical Record 21, 1-17 (2021).

15. Jia-Syun Lu, Tetsuhiro Kudo, Boris Louis, Roger Bresolí-Obach, Ivan G. Scheblykin, Johan Hofkens, Hiroshi Masuhara, “Optical Force-Induced Dynamics of Assembling, Rearrangement, and Three-Dimensional Pistol-like Ejection of Microparticles at the Solution Surface,” The Journal of Physics Chemistry C 124, 27107-27117 (2020).

14. Chi-Lung Wu, Shun-Fa Wang, Tetsuhiro Kudo, Ken-ichi Yuyama, Teruki Sugiyama and Hiroshi Masuhara, “Anomalously Large Assembly Formation of Polystyrene Nanoparticles by Optical Trapping at the Solution Surface,” Langmuir 36, 14234-14242 (2020).

13. Boris Louis, Rafael Camacho, Roger Bresolí-Obach, Sergey Abakumov, Johannes Vandaele, Tetsuhiro Kudo, Hiroshi Masuhara, Ivan G. Scheblykin, Johan Hofkens, Susana Rocha “Fast-tracking of single emitters in large volumes with nanometer precision,” Optics Express 28, 28656-28671 (2020).

12. Chih-Hao Huang, Tetsuhiro Kudo, Roger Bresolí-Obach, Johan Hofkens, Teruki Sugiyama, Hiroshi Masuhara, “Surface plasmon resonance effect on laser trapping and swarming of gold nanoparticles at an interface,” Optics Express 28, 27727-27735 (2020).

11. Jia-Syun Lu, Hsuan-Yin Wang, Tetsuhiro Kudo, Hiroshi Masuhara, “Large Submillimeter Assembly of Microparticles with Necklace-like Patterns Formed by Laser Trapping at Solution Surface,” The Journal of Physical Chemistry Letters 11, 6057-6062 (2020).

10. Issei Aibara, Chih-Hao Huang, Tetsuhiro Kudo, Roger Bresolí-Obach, Johan Hofkens, Akihiro Furube, Hiroshi Masuhara, “Dynamic coupling of optically evolved assembling of gold nanoparticles with photothermal local phase transition of polymer solution,” The Journal of Physical Chemistry C 124, 16604-16615 (2020), selected as Cover Arts.

9. Wei-Yi Chiang, Jim Jui-Kai Chen, Anwar Usman, Tetsuhiro Kudo, Kangwei Xia, Jia Su, Teruki Sugiyama, Johan Hofkens and Hiroshi Masuhara, “Formation Mechanism and Fluorescence Characterization of a Transient Assembly of Nanoparticles Generated by Femtosecond Laser Trapping,” The Journal of Physical Chemistry C 123, 27823-27833 (2019).

8. Tetsuhiro Kudo, Shang-Jan Yang and Hiroshi Masuhara, “A Single Large Assembly with Dynamically Fluctuating Swarms of Gold Nanoparticles Formed by Trapping Laser,” Nano Letters, 18, 5846-5853 (2018).

7. Tetsuhiro Kudo, Hajime Ishihara and Hiroshi Masuhara “Resonance optical trapping of individual dye-doped polystyrene particles with blue- and red-detuned lasers,” Optics Express 25, 4655-4664 (2017).

6. Shun-Fa Wang, Tetsuhiro Kudo, Ken-ichi Yuyama, Teruki Sugiyama and Hiroshi Masuhara “Optically evolved assembly formation in laser trapping of polystyrene nanoparticles at solution surface,” Langmuir 32, 12488-12496 (2016).

5. Tetsuhiro Kudo, Shun-Fa Wang, Ken-ichi Yuyama and Hiroshi Masuhara “Optical trapping-formed colloidal assembly with horns extended to the outside of a focus through light propagation,” Nano Letters 16, 3058-3062 (2016), highlighted in web-article of Advances in Engineering,https://advanceseng.com/optical-trapping-formed-colloidal-assembly-horns-extended-outside-focus-light-propagation/

4. Tetsuhiro Kudo and Hajime Ishihara “Two-color laser manipulation of single organic molecules based on nonlinear optical response,” European Physical Journal B 86, 98 (2013).

3. Tetsuhiro Kudo and Hajime Ishihara “Resonance optical manipulation of nano-objects based on nonlinear optical response,” Physical Chemistry Chemical Physics 15, 14595-14610, (2013), invited as perspective paper.

2. Tetsuhiro Kudo and Hajime Ishihara, “Proposed nonlinear resonance laser technique for manipulating nanoparticles,” Physical Review Letters 109, 087402 (2012), highlighted as, Focus: How to Manipulate Nanoparticles with Lasers, American Physical Society, Physics 5, 95 (2012). https://physics.aps.org/articles/v5/95

1. Tetsuhiro Kudo and Hajime Ishihara, “Theory of radiation force exerted on dye-doped molecules irradiated by resonant laser,” physica status solidi (c) 8, 66-69 (2011).

1. Home-made inverted optical microscope with home-made infrared fiber lasers

2. Home-made 3D motorized inverted optical microscope with a 1064 nm CW laser and 1030 nm ultrafast pulsed Yb doped fiber laser

3. Home-made upright ATR optical microscope with Mid-IR light sources

4. Tunable mid-infrared quantum cascade lasers(Daylight solutions)

5. IR detectors (power meter, beam profiler, spectrometer) and related optics for Mid-IR region

6. UV-Visible and FTIR(ATR) spectrometers

7. Optical tables in Clean booths

8. Tabletop SEM

9. Fundamental tools for preparing samples (colloidal suspensions, glass substrates, DI water, spacers, pipets, vortex mixer, sonication, electronic balance, magnetic stirrer with heat control, and other fundamental tools)

10. Computer softs we use for data analysis are typically ImageJ, Micromanager, Python, MATLAB, Fortran90, Ansys Lumerical FDTD