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Kota Kumagai, Ph.D.
Assistant Prof.

Utsunomiya University,
Center for Optical Research and Education (CORE)
Information Photonics Lab. (Hayasaki Lab.)

7-1-2, Yoto, Utsunomiya, Tochigi 321-8585, Japan
kumagai(at)a.utsunomiya-u.ac.jp

OPTICA(OSA), SPIE, 日本光学会, 応用物理学会

researchmap, Google Scholor, 宇都宮大学研究者総覧,
youtube


 

Experience
4/'20-  Assistant Prof., CORE, Utsunomiya Univ.
4/'19 - 3/'20   R&D Center, Sony Corp.
9/'17 - 11/'17 Research intern, Swinburne Univ. of Tech.
4/'16 - 3/'19 Research fellow (DC1), JSPS
4/'16 - 3/'19 Ph.D. student in Engineering, Utsunomiya Univ.
2/'92  Miyako, Iwate


 

Projects
Volumetric cloud display
[paper]
Dual-path holographic laser drawing -Demo-
[proc]
Grating art -書-
Sequential light source arrays
[paper]
Drawing space separation
[paper]
[movie]
GNP-Containing Glycerin Screen
[paper]
Three-Dimensionally Structured Voxels
[paper]
Volumetric Bubble Display
[paper]
[movie]
Cross-Fields Aerial Haptics
[proc]
[movie]
Fairy Lights in Femtoseconds
[paper]
[movie] [art movie]
Multilayer Fluorescent Screen
[paper]
[movie]


Journal
2025

Kota Kumagai, Keisuke Numazawa and Yoshio Hayasaki, "Volumetric cloud display," (2025). [Accepted]

Kota Kumagai, Tatsuki Mori, and Yoshio Hayasaki, "Fist-sized aerial volumetric display with femtosecond laser drawing," Journal of the Society for Information Display Vol.33, 3, pp.168-174 (2025).

2024

Hsin-Hui Huang, Takeshi Nagashima, Kota Kumagai, Yoshio Hayasaki, Vygantas Mizeikis, Saulius Juodkazis, Vladimir T. Tikhonchuk, Koji Hatanaka, "THz Radiation from Subwavelength Volumes on Water Surfaces and in Air: Effects of Mass Density Gradients and External Magnetic Fields," The Journal of Physical Chemistry C Vol.128, 35, pp.14776–14783 (2024).

Hsin-hui Huang, Takeshi Nagashima, Kota Kumagai, Yoshio Hayasaki, Saulius Juodkazis, Vladimir T. Tikhonchuk, and Koji Hatanaka "Fine 3D control of THz emission in air with dual femtosecond laser pre-pulses at tunnelling ionisation regime," Light: Advanced Manufacturing Vol.5, 3, pp.342-354 (2024).

2023

Kota Kumagai, Hsin-hui Huang, Koji Hatanaka and Yoshio Hayasaki, "Computational broadband imaging with laser-driven sequential light source arrays on water film," Optics Express Vol. 31, Issue 6, pp.9554-9562 (2023).

Yoshio Hayasaki, Ryo Onodeara, Kota Kumagai, and Satoshi Hasegawa, "Automatic generation of a holographically shaped beam in an actual optical system for use in material laser processing," Optics Express Vol. 31, Issue 2, pp. 1982-1991 (2023).

2021

Kota Kumagai, Shun Miura and Yoshio Hayasaki, "Colour volumetric display based on holographic-laser-excited graphics using drawing space separation," Scientific Reports Vol. 11, Article number: 22728 (2021).

2020

Kota Kumagai, Taisei Chiba and Yoshio Hayasaki, "Volumetric bubble display with gold-nanoparticle-containing glycerin screen," Optics Express Vol.28 , Issue 23, pp.33911-33920 (2020).

2018

Stefania Castelletto, Ahmed Almutairi, Kota Kumagai, Tomas Katkus, Yoshio Hayasaki, Brett C. Johnson and Saulius Juodkazis, "Photoluminescence in Hexagonal Silicon Carbide by direct femtosecond laser writing," Optics Letters Vol. 43, Issue 14, pp. 3341-3344 (2018).

Kota Kumagai, Ibuki Yamaguchi and Yoshio Hayasaki, "Three-dimensionally structured voxels for volumetric display," Optics Letters Vol. 43, Issue 14, pp. 3341-3344 (2018).

2017

Kota Kumagai, Satoshi Hasegawa and Yoshio Hayasaki, "Volumetric bubble display," Optica Vol. 4, No. 3, pp. 298-302 (2017).

2016

Yoichi Ochiai*, Kota Kumagai*, Takayuki Hoshi, Jun Rekimoto, Satoshi Hasegawa, Yoshio Hayasaki, "Fairy Lights in Femtoseconds: Aerial and Volumetric Graphics Rendered by Focused Femtosecond Laser Combined with Computational Holographic Fields," ACM Transactions on Graphics Vol. 35, Issue 2, No. 17 (2016). [* Joint First Author]

2015

Kota Kumagai, Daichi Suzuki, Satoshi Hasegawa and Yoshio Hayasaki, "Volumetric display with holographic parallel optical access and multilayer fluorescent screen," Optics Letters Vol. 40, Issue 14, pp. 3356-3359 (2015).

 

Award
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Presentation
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Misc
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Grant
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