Kota Kumagai, Keisuke Numazawa and Yoshio Hayasaki, "Volumetric cloud display," Optica Vol. 12, Issue 7, pp. 1139-1143 (2025).

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).

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).

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).

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).

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).

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).

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

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]

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).