K. Fujioka, Y. Matsumoto, Y. Tamaru, H. Yoshida, J. Ogino, S. Tokita, K. Tsubakimoto, K. Yamamoto, A. Yogo, J. Kawanaka, and N. Miyanaga, "Fabrication, spectroscopic characteristics, and lasing performance of Nd,La:CaF2 transparent ceramics," Opt. Mater. Express 15, 890-902 (Apr 2025). https://doi.org/10.1364/OME.558733

K. Goya, S. Noda, G. Ishida, K. Tachibana, H. Uehara, S. Tokita, "Mid-infrared refractometer based on side-polished indium fluoride fiber for monitoring relative humidity," Appl. Phys. Express 18, 032009 (Mar 2025). https://doi.org/10.35848/1882-0786/adbc7a

H. Furuse, D. Ueno, K. Omata, M. Imai, S. Tokita, "Mid-infrared fine-grained Er:Y2O3 laser ceramics fabricated by spark plasma sintering," Ceram. Int. 50, 46925 (2024). https://doi.org/10.1016/j.ceramint.2024.09.044

E. Li, H. Uehara, S. Tokita, M. Zhao, R. Yasuhara, "High-power, single-frequency mid-infrared laser based on a hybrid Fe:ZnSe amplifier," Infrared Physics & Technology 136, 105071 (2024). https://doi.org/10.1016/j.infrared.2023.105071

I Ogawa, T Hiraiwa, J Nakajima, R Yuhaku, M Tozawa, H Niki, S Tokita, N Miyanaga, M Uemukai, A Rittirong, S Umehara, K Matsuoka, S Yoshida, "Laser isotope separation to study for the neutrino-less double beta decay of 48Ca," J. Phys.: Conf. Ser. 2586, 012136 (2023). https://doi.org/10.1088/1742-6596/2586/1/012136

K. Goya, H. Sasanuma, G. Ishida, H. Uehara, S. Tokita, "Fusion splicing of plastic optical fibers using a mid-IR fiber laser," Appl. Phys. Express 16, 052006 (2023). https://doi.org/10.35848/1882-0786/acd491

K. Homma, O. Tesileanu, Y. Nakamiya, Y. Kirita, C. Chiochiu, M. Cuciuc, G. Giubega, T. Hasada, M. Hashida, F. Ishibashi, T. Kanai, A. Kodama, S. Masuno, T. Miyamaru, L. Neagu, V. R. M. Rodrigues, M. M. Rosu, S. Sakabe, J. Tamlyn, S. V. Tazlauanu, S. Tokita, "Challenge of search for cosmological dark components with high-intensity lasers and beyond," Eur. Phys. J. A 59, 109 (2023). https://doi.org/10.1140/epja/s10050-023-01001-y

M. Fujiwara, S. Inoue, S. Masuno, H. Fu, S. Tokita, M. Hashida, N. Mizuochi, "Creation of NV centers over a millimeter-sized region by intense single-shot ultrashort laser irradiation," APL Photonics 8, 036108 (2023). https://doi.org/10.1063/5.0137093

F. Ishibashi, T. Hasada, K. Homma, Y. Kirita, T. Kanai, S. Masuno, S. Tokita, M. Hashida, "Pilot Search for Axion-Like Particles by a Three-Beam Stimulated Resonant Photon Collider with Short Pulse Lasers," Universe 9, 123 (2023). https://doi.org/10.3390/universe9030123

T. Ozaki, Y. Abe, Y. Arikawa, Y. Sentoku, J. Kawanaka, S. Tokita, N. Miyanaga, T. Jitsuno, Y. Nakata, K. Tsubakimoto, A. Sunahara, T. Jhozaki, E. Miura, O. Komeda, A. Iwamoto, H. Sakagami, S. Okihara, K. Ishii, R. Hanayama, Y. Mori and Y. Kitagawa, "Hot electron and ion spectra on blow-off plasma free target in GXII-LFEX direct fast ignition experiment," Nucl. Fusion 63, 036009 (2023). https://doi.org/10.1088/1741-4326/acb44d

E. Li, H. Uehara, S. Tokita, W. Yao, R. Yasuhara, "A hybrid quantum cascade laser/Fe:ZnSe amplifier system for power scaling of CW lasers at 4.0–4.6 µm," Optics & Laser Technology 157, 108783 (2023). https://doi.org/10.1016/j.optlastec.2022.108783

T. Sekine, T. Kurita, Y. Hatano, Y. Muramatsu, M. Kurata, T. Morita, T. Watari, T. Iguchi, R. Yoshimura, Y. Tamaoki, Y. Takeuchi, K. Kawai, Y. Zheng, Y. Kato, Norio Kurita, T. Kawashima, S. Tokita, J. Kawanaka, and R. Kodama, "253 J at 0.2 Hz, LD pumped cryogenic helium gas cooled Yb:YAG ceramics laser," Opt. Express 30, 44385-44394 (2022). https://doi.org/10.1364/OE.470815

N. Yokoyama, Y. Morioka, T. Murata, H. Honda, K. Serita, H. Murakami, M. Tonouchi, S. Tokita, S. Ichikawa, Y. Fujiwara, T. Hikosaka, M. Uemukai, T. Tanikawa, and R. Katayama, "Second harmonic generation in GaN transverse quasi-phase-matched waveguide pumped with femtosecond laser," Appl. Phys. Express 15, 112002 (2022). https://doi.org/10.35848/1882-0786/ac9511

J. Ogino, S. Tokita, S. Kitajima, H. Yoshida, Z. Li, S. Motokoshi, N. Morio, K. Tsubakimoto, K. Fujioka, R. Kodama, and J. Kawanaka, "10-J, 100-Hz conduction-cooled active-mirror laser," Opt. Continuum 1, 1270–1277 (2022). https://doi.org/10.1364/OPTCON.456554

A. Morace, Y. Abe, J.J. Honrubia, N. Iwata, Y. Arikawa, Y. Nakata, T. Johzaki, A.Yogo, Y. Sentoku, K. Mima, T. Ma, D.Mariscal, H. Sakagami, T.Norimatsu, K. Tsubakimoto, J. Kawanaka, S. Tokita, N. Miyanaga, H. Shiraga, Y. Sakawa, M. Nakai, H. Azechi, S. Fujioka, R. Kodama, "Super-strong magnetic field-dominated ion beam dynamics in focusing plasma devices," Sci. Rep. 12, 6876 (2022). https://doi.org/10.1038/s41598-022-10829-1 

I. Ogawa, Y. Kawashima, T. Hiraiwa, M. Tozawa, H. Niki, S. Tokita, B. Han, H. Okuda, N. Miyanaga, S. Umehara, “Development of the laser isotope separation method to study for the neutrino-less double beta decay of 48Ca,” J. Phys.: Conf. Ser. 2147, 012012 (2022). https://doi.org/10.1088/1742-6596/2147/1/012012

K. Goya, Y. Koyama, Y. Nishijima, S. Tokita, R. Yasuhara, and H. Uehara, “A fluoride fiber optics in-line sensor for mid-IR spectroscopy based on a side-polished structure,” Sens. Actuators B Chem. 351, 130904 (2022). https://doi.org/10.1016/j.snb.2021.130904

E. Li, H. Uehara, W. Yao, S. Tokita, F. Potemkin, and R. Yasuhara, “High-efficiency, continuous-wave Fe:ZnSe mid-IR laser end pumped by an Er:YAP laser,” Opt. Express 29, 44118–44128 (2021). https://doi.org/10.1364/OE.444625

K. Goya, A. Mori, S. Tokita, R. Yasuhara, T. Kishi, Y. Nishijima, S. Tanabe, and H. Uehara, “Broadband mid-infrared amplified spontaneous emission from Er/Dy co-doped fluoride fiber with a simple diode-pumped configuration,” Sci. Rep. 11, 5432 (2021). https://doi.org/10.1038/s41598-021-84950-y

J. Ogino, L. Zhaoyang, S. Tokita, K. Tsubakimoto, N. Miyanaga, and J. Kawanaka, “Development two-stage frequency domain optical parametric amplification,” High Energy Density Phys. 38, 100906 (2021). https://doi.org/10.1016/j.hedp.2020.100906

J. Ogino, S. Tokita, S. Kitajima, H. Yoshida, Z. Li, S. Motokoshi, N. Morio, K. Tsubakimoto, K. Fujioka, R. Kodama, and J. Kawanaka, “10 J operation of a conductive-cooled Yb:YAG active-mirror amplifier and prospects for 100 Hz operation,” Opt. Lett. 46, 621–624 (2021). https://doi.org/10.1364/OL.414926

K. Hamamoto, M. Nishio, S. Tokita, H. Uehara, T. Yanagitani, K. Fujioka, R. Yasuhara, and J. Kawanaka, “Properties of TAG ceramics at room and cryogenic temperatures and performance estimations as a Faraday isolator,” Opt. Mater. Express 11, 434–441 (2021). https://doi.org/10.1364/OME.412938

吉田英次，時田茂樹，椿本孝治，河仲準二，“TGGセラミックスを用いた高平均出力レーザー用大口径ファラデー回転装置の開発”, レーザー研究 49，61–66 (2021).

T. Ozaki, Y. Abe, Y. Arikawa, S. Okihara, E. Miura, A. Sunahara, K. Ishii, R. Hanayama, O. Komeda, Y. Sentoku, A. Iwamoto, H. Sakagami, T. Johzaki, J. Kawanaka, S. Tokita, N. Miyanaga, T. Jitsuno, Y. Nakata, K. Tsubakimoto, Y. Mori, Y. Kitagawa, "Hot Electron and Ion Spectra in Axial and Transverse Laser Irradiation in the GXII-LFEX Direct Fast Ignition Experiment," Plasma and Fusion Research 16, 2404076 (2021). https://doi.org/10.1585/pfr.16.2404076

W. Yao, H. Uehara, S. Tokita, H. Chen, D. Konishi, M. Murakami, and R. Yasuhara, “LD-pumped 2.8 μm Er:Lu2O3 ceramic laser with 6.7 W output power and >30% slope efficiency,” Appl. Phys. Express 14, 012001 (2020). https://doi.org/10.35848/1882-0786/abce9a

R. Yasuhara, H. Uehara, W. Yao, H. Chen, S. Tokita, and H. Furuse, “Dy-doped Y2O3 transparent ceramics as a mid-infrared laser medium and saturable absorber,” Opt. Mater. Express 10, 2998–3006 (2020).

T. Sekine, T. Kurita, M. Kurata, T. Morita, Y. Hatano, Y. Muramatsu, T. Watari, Y. Kabeya, T. Iguchi, R. Yoshimura, Y. Tamaoki, Y. Takeuchi, Y. Mizuta, K. Kawai, Y. Zheng, Y. Kato, T. Suzuki, N. Kurita, T. Kawashima, S. Tokita, J. Kawanaka, N. Ozaki, Y. Hironaka, K. Shigemori, R. Kodama, R. Kuroda, and E. Miura, “Development of a 100-J DPSSL as a laser processing platform in the TACMI consortium,” High Energy Density Phys. 36, 100800 (2020).

K. Hamamoto, R. Yasuhara, S. Tokita, M. Chyla, and J. Kawanaka, “Measurement of the piezooptic coefficient of ceramic YAG and analysis of depolarization,” Opt. Mater. Express 10, 891–898 (2020).

H. Uehara, T. Tsunai, B. Han, K. Goya, R. Yasuhara, F. Potemkin, J. Kawanaka, and S. Tokita, “40 kHz, 20 ns acousto-optically Q-switched 4 µm Fe:ZnSe laser pumped by a fluoride fiber laser,” Opt. Lett. 45, 2788–2791 (2020).

A. V. Pushkin, E. A. Migal, S. Tokita, Yu. V. Korostelin, and F. V. Potemkin, “Femtosecond graphene mode-locked Fe:ZnSe laser at 4.4  µm,” Opt. Lett. 45, 738-741 (2020).

K. Matsuo, N. Higashi, N. Iwata, S. Sakata, S. Lee, T. Johzaki, H. Sawada, Y. Iwasa, K. F. F. Law, H. Morita, Y. Ochiai, S. Kojima, Y. Abe, M. Hata, T. Sano, H. Nagatomo, A. Sunahara, A. Morace, A. Yogo, M. Nakai, H. Sakagami, T. Ozaki, K. Yamanoi, T. Norimatsu, Y. Nakata, S. Tokita, J. Kawanaka, H. Shiraga, K. Mima, H. Azechi, R. Kodama, Y. Arikawa, Y. Sentoku, and S. Fujioka, “Petapascal Pressure Driven by Fast Isochoric Heating with a Multipicosecond Intense Laser Pulse,” Phys. Rev. Lett. 124, 035001 (2020).

K. Goya, H. Uehara, D. Konishi, R. Sahara, M. Murakami, and S. Tokita, “Stable 35-W Er: ZBLAN fiber laser with CaF2 end caps,” Appl. Phys. Express 12, 102007 (2019).

H. Uehara, D. Konishi, K. Goya, R. Sahara, M. Murakami, and S. Tokita, “Power scalable 30-W mid-infrared fluoride fiber amplifier,” Opt. Lett. 44, 4777–4780 (2019).

X. Guo, S. Tokita, and J. Kawanaka, “Highly efficient femtosecond second-harmonic generation from Yb:CaF2-regenerative amplifier,” Appl. Phys. B 125, 143 (2019).

S. Kojima, M. Hata, N. Iwata, Y. Arikawa, A. Morace, S. Sakata, S. Lee, K. Matsuo, K. F. F. Law, H. Morita, Y. Ochiai, A. Yogo, H. Nagatomo, T. Ozaki, T. Johzaki, A. Sunahara, H. Sakagami, Z. Zhang, S. Tosaki, Y. Abe, J. Kawanaka, S. Tokita, M. Nakai, H. Nishimura, H. Shiraga, H. Azechi, Y. Sentoku, and S. Fujioka, “Electromagnetic field growth triggering super-ponderomotive electron acceleration during multi-picosecond laser-plasma interaction,” Commun. Phys. 2, 99 (2019).

A. Morace, N. Iwata, Y. Sentoku, K. Mima, Y. Arikawa, A. Yogo, A. Andreev, S. Tosaki, X. Vaisseau, Y. Abe, S. Kojima, S. Sakata, M. Hata, S. Lee, K. Matsuo, N. Kamitsukasa, T. Norimatsu, J. Kawanaka, S. Tokita, N. Miyanaga, H. Shiraga, Y. Sakawa, M. Nakai, H. Nishimura, H. Azechi, S. Fujioka, and R. Kodama, “Enhancing laser beam performance by interfering intense laser beamlets,” Nat. Commun. 10, 2995 (2019).

Z. Li, J. Ogino, S. Tokita, and J. Kawanaka, “Arbitrarily distorted 2-dimensional pulse-front measurement and reliability analysis,” Opt. Express 27, 13292–13306 (2019).

H. Uehara, S. Tokita, J. Kawanaka, D. Konishi, M. Murakami, and R. Yasuhara, “A passively Q-switched compact Er:Lu2O3 ceramics laser at 2.8 μm with a graphene saturable absorber,” Appl. Phys. Express 12, 022002 (2019).

X. Guo, S. Tokita, and J. Kawanaka, “High beam quality and high peak power Yb:YAG/Cr:YAG microchip laser,” Opt. Express 27, 45–54 (2019).

S. Sakata, S. Lee, H. Morita, T. Johzaki, H. Sawada, Y. Iwasa, K. Matsuo, K. F. F. Law, A. Yao, M. Hata, A. Sunahara, S. Kojima, Y. Abe, H. Kishimoto, A. Syuhada, T. Shiroto, A. Morace, A. Yogo, N. Iwata, M. Nakai, H. Sakagami, T. Ozaki, K. Yamanoi, T. Norimatsu, Y. Nakata, S. Tokita, N. Miyanaga, J. Kawanaka, H. Shiraga, K. Mima, H. Nishimura, M. Bailly-Grandvaux, J. J. Santos, H. Nagatomo, H. Azechi, R. Kodama, Y. Arikawa, Y. Sentoku, and S. Fujioka, “Magnetized fast isochoric laser heating for efficient creation of ultra-high-energy-density states,” Nat. Commun. 9, 3937 (2018).

Z. Li, K. Tsubakimoto, J. Ogino, X. Guo, S. Tokita, N. Miyanaga, and J. Kawanaka, “Stable ultra-broadband gain spectrum with wide-angle non-collinear optical parametric amplification,” Opt. Express 26, 28848–28860 (2018).

A. V. Pushkin, E. A. Migal, H. Uehara, K. Goya, S. Tokita, M. P. Frolov, Yu. V. Korostelin, V. I. Kozlovsky, Ya. K. Skasyrsky, and F. V. Potemkin, “Compact, highly efficient, 2.1-W continuous-wave mid-infrared Fe:ZnSe coherent source, pumped by an Er:ZBLAN fiber laser,” Opt. Lett. 43, 5941–5944 (2018).

K. Goya, H. Matsukuma, H. Uehara, S. Hattori, C. Schäfer, D. Konishi, M. Murakami, and S. Tokita, “Plane-by-plane femtosecond laser inscription of first-order fiber Bragg gratings in fluoride glass fiber for in situ monitoring of lasing evolution,” Opt. Express 26, 33305–33313 (2018).

K. Teramoto, S. Tokita, T. Terao, S. Inoue, R. Yasuhara, Y. Nakamiya, T. Nagashima, S. Kojima, J. Kawanaka, K. Mori, M. Hashida, and S. Sakabe, “Half-cycle terahertz surface waves with MV/cm field strengths generated on metal wires,” Appl. Phys. Lett. 113, 051101 (2018).

K. Teramoto, S. Inoue, S. Tokita, R. Yasuhara, Y. Nakamiya, T. Nagashima, K. Mori, M. Hashida, and S. Sakabe, “Induction of subterahertz surface waves on a metal wire by intense laser interaction with a foil,” Phys. Rev. E 97, 023204 (2018).

X. Guo, K. Hamamoto, S. Tokita and J. Kawanaka, “160 ps Yb:YAG/Cr:YAG microchip laser,” Laser Phys. Lett. 15, 105001 (2018).

K. Hamamoto, S. Tokita, H. Yoshida, N. Miyanaga, and J. Kawanaka, “Temperature-dependent absorption assessment of YAG ceramics as cladding material,” Opt. Mater. Express 8, 2378–2386 (2018).

X. Guo, S. Tokita, K. Hirose, T. Sugiyama, A. Watanabe, K. Ishizaki, S. Noda, N. Miyanaga, and J. Kawanaka, “PCSEL pumped coupling optics free Yb:YAG/Cr:YAG microchip laser,” Appl. Opt. 57, 5295–5298 (2018).

N. Bawden, H. Matsukuma, O. Henderson-Sapir, E. Klantsataya, S. Tokita, and D. J. Ottaway, “Actively Q-switched dual-wavelength pumped Er3+:ZBLAN fiber laser at 3.47 µm,” Opt. Lett 43, 2724–2727, (2018).

C. A. Schäfer, H. Uehara, D. Konishi, S. Hattori, H. Matsukuma, M. Murakami, S. Shimizu, and S. Tokita, “Fluoride-fiber-based side-pump coupler for high-power fiber lasers at 2.8 μm,” Opt. Lett. 43, 2340–2343, (2018).

H. Uehara, S. Tokita, J. Kawanaka, D. Konishi, M. Murakami, S. Shimizu, and R. Yasuhara, “Optimization of laser emission at 2.8 μm by Er:Lu2O3 ceramics,” Opt. Express 26, 3497–3507, (2018).

X. Guo, S. Tokita, and J. Kawanaka, “12 mJ Yb:YAG/Cr:YAG microchip laser,” Opt. Lett. 43, 459–461 (2018).

A. Yogo, K. Mima, N. Iwata, S. Tosaki, A. Morace, Y. Arikawa, S. Fujioka, T. Johzaki, Y. Sentoku, H. Nishimura, A. Sagisaka, K. Matsuo, N. Kamitsukasa, S. Kojima, H. Nagatomo, M. Nakai, H. Shiraga, M. Murakami, S. Tokita, J. Kawanaka, N. Miyanaga, K. Yamanoi, T. Norimatsu, H. Sakagami, S. V. Bulanov, K. Kondo, and H. Azechi, “Boosting laser-ion acceleration with multi-picosecond pulses,” Sci. Rep. 7, 42451 (2017).

X. Guo, S. Tokita, K. Yoshii, H. Nishioka, and J. Kawanaka, “Generation of 300 nm bandwidth 0.5 mJ pulses near 1 μm in a single stage gas filled hollow core fiber,” Opt. Express 25, 21171–21179 (2017).

H. Uehara, R. Yasuhara, S. Tokita, J. Kawanaka, M. Murakami, and S. Shimizu, “Efficient continuous wave and quasi-continuous wave operation of a 2.8 μm Er:Lu2O3 ceramic laser,” Opt. Express 25, 18677 (2017).

X. Guo, S. Tokita, K. Fujioka, H. Nishida, K. Hirose, T. Sugiyama, A. Watanabe, K. Ishizaki, S. Noda, N. Miyanaga, and J. Kawanaka, “High-beam-quality, efficient operation of passively Q-switched Yb:YAG/Cr:YAG laser pumped by photonic-crystal surface-emitting laser,” Appl. Phys. B 123, 194 (2017).

X. Guo, S. Tokita, X. Tu, Y. Zheng and J. Kawanaka, “Prospects of obtaining terawatt class infrared pulses using standard optical parametric amplification,” Laser Phys. 27, 025403 (2017).

Y. Arikawa, S. Kojima, A. Morace, M. Hata, S. Sakata, S. Fujioka, T. Kawashima, Y. Hironaka, K. Shigemori, Y. Abe, Z. Zhang, X. Vaisseau, S. Lee, T. Gawa, K. Matsuo, K. F. F. Law, Y. Kato, S. Matsubara, S. Tosaki, A. Yogo, H. Nagatomo, S. Tokita, Y. Nakata, T. Jitsuno, N. Miyanaga, J. Kawanaka, Y. Fujimoto, K. Yamanoi, T. Norimatsu, M. Nakai, H. Nishimura, H. Shiraga, H. Azechi, A. Sunahara, T. Johzaki, T. Ozaki, and H. Sakagami, “Improvement in the heating efficiency of fast ignition inertial confinement fusion through suppression of the preformed plasma,” Nucl. Fusion 57, 066022 (2017).

A. Starobor, E. Mironov, I. Snetkov, O. Palashov, H. Furuse, S. Tokita, and R. Yasuhara, “Cryogenically cooled CeF3 crystal as media for high-power magneto-optical devices,” Opt. Lett. 42, 1864–1866 (2017).

E. A. Mironov, A. V. Starobor, I. L. Snetkov, O. V. Palashov, H. Furuse, S. Tokita, and R. Yasuhara, “Thermo-optical and magneto-optical characteristics of CeF3 crystal,” Opt. Mater. 69, 196–201 (2017).

Z. Li, S. Tokita, S. Matsuo, K. Sueda, T. Kurita, T. Kawashima, and N. Miyanaga, “Scattering pulse-induced temporal contrast degradation in chirped-pulse amplification lasers,” Opt. Express 25, 21201–21215 (2017).

S. Hwang, S. Tokita, T. Kawashima, H. Nishioka and J. Kawanaka, “Hundred-picosecond narrowband chirped-pulse generation in an Yb:YAG regenerative amplifier using transmission gratings,” Jpn. J. Appl. Phys. 55, 122702 (2016).

Y. Arikawa, S. Kojima, A. Morace, S. Sakata, T. Gawa, Y. Taguchi, Y. Abe, Z. Zhang, X. Vaisseau, S. H. Lee, K. Matsuo, S. Tosaki, M. Hata, K. Kawabata, Y. Kawakami, M. Ishida, K. Tsuji, S. Matsuo, N. Morio, T. Kawasaki, S. Tokita, Y. Nakata, T. Jitsuno, N. Miyanaga, J. Kawanaka, H. Nagatomo, A. Yogo, M. Nakai, H. Nishimura, H. Shiraga, S. Fujioka, H. Azechi, A. Sunahara, T. Johzaki, T. Ozaki, H. Sakagami, A. Sagisaka, K. Ogura, A. S Pirozhkov, M. Nishikino, K. Kondo, S. Inoue, K. Teramoto, M. Hashida, S. Sakabe, FIREX Group, and LFEX Group，“Ultrahigh-contrast kilojoule-class petawatt LFEX laser using a plasma mirror,” Appl. Opt. 55, 6850–6857 (2016).

X. Guo, S. Tokita, K. Hirose, T. Sugiyama, A. Watanabe, K. Ishizaki, S. Noda, N. Miyanaga, and J. Kawanaka, “Demonstration of a photonic crystal surface-emitting laser pumped Yb:YAG laser”, Opt. Lett. 41, 4653–4655 (2016).

S. Inoue, K. Maeda, S. Tokita, K. Mori, K. Teramoto, M. Hashida, and S. Sakabe, “Single plasma mirror providing 104 contrast enhancement and 70% reflectivity for intense femtosecond lasers,” Appl. Opt. 55, 6435–6435 (2016).

Y. Arikawa, S. Fujioka, A. Morace, Z. Zhang, T. Nagai, M. Taga, Y. Abe, S. Kojima, S. Sakata, H. Inoue, M. Utsugi, S. Hattori, S. H. Lee, T. Ikenouchi, T. Hosoda, A. Sunahara, T. Ozaki, T. Johzaki, H. Nagatomo, K. Yamanoi, T. Shimizu, S. Tokita, Y. Fujimoto, J. Kawanaka, Y. Nakata, M. Nakai, H. Shiraga, H. Jitsuno, N. Sarukura, N. Miyanaga, T. Norimatsu, H. Nishimura, and H. Azechi, “The diagnostics of the energy coupling efficiency in the Fast Ignition integrated experiment,” J. Phys.: Conf. Ser. 688, 012004 (2016).

阪部周二、橋田昌樹、時田茂樹、井上峻介、寺本研介、渡邉浩太、“高強度フェムト秒レーザー生成・加速電子源を用いた超高速電子回折と偏向法”，顕微鏡 50、164–169 (2015).

S. Fujioka, Y. Arikawa, S. Kojima, T. Johzaki, H. Nagatomo, H. Sawada, S. H. Lee, T. Shiroto, N. Ohnishi, A. Morace, X. Vaisseau, S. Sakata, Y. Abe, K. Matsuo, K. F. Farley Law, S. Tosaki, A. Yogo, K. Shigemori, Y. Hironaka, Z. Zhang, A. Sunahara, T. Ozaki, H. Sakagami, K. Mima, Y. Fujimoto, K. Yamanoi, T. Norimatsu, S. Tokita, Y. Nakata, J. Kawanaka, T. Jitsuno, N. Miyanaga, M. Nakai, H. Nishimura, H. Shiraga, K. Kondo, M. Bailly-Grandvaux, C. Bellei, J. J. Santos, and H. Azechi, Phys. Plasmas 23, 056308 (2015).

M. Divoky, S. Tokita, S. Hwang, T. Kawashima, H. Kan, A. Lucianetti, T. Mocek, and J. Kawanaka, “1-J operation of monolithic composite ceramics with Yb:YAG thin layers: multi-TRAM at 10-Hz repetition rate and prospects for 100-Hz operation,” Opt. Lett. 40, 855 (2015).

S. Tokita, S. Sakabe, T. Nagashima, M. Hashida, and S. Inoue, “Strong sub-terahertz surface waves generated on a metal wire by high-intensity laser pulses,” Sci. Rep. 5, 8268 (2015).

S. Inoue, S. Tokita, M. Hashida, and S. Sakabe, “Transient changes in electric fields induced by interaction of ultraintense laser pulses with insulator and metal foils: Sustainable fields spanning several millimeters,” Phys. Rev. E 91, 043101 (2015).

L. Gemini, M. Hashida, M. Shimizu, Y. Miyasaka, S. Inoue, S. Tokita, J. Limpouch, T. Mocek, and S. Sakabe, “Periodic surface structures on Titanium self-organized upon double femtosecond pulse exposures,” Appl. Surf. Sci. 336, 349–353 (2015).

S. Tokita, M. Divoky, H. Furuse, K. Matsumoto, Y. Nakamura, M. Yoshida, T. Kawashima, and J. Kawanaka, “Generation of 500-mJ nanosecond pulses from a diode-pumped Yb:YAG TRAM laser amplifier,” Opt. Mater. Express 4, 2122 (2014).

L. Gemini, M. Hashida, M. Shimizu, Y. Miyasaka, S. Inoue, S. Tokita, J. Limpouch, T. Mocek, and S. Sakabe, “Periodic nanostructures self-formed on silicon and silicon carbide by femtosecond laser irradiation,” Appl. Phys. A 117, 49–54(2014).

L. Gemini, M. Hashida, M. Shimizu, Y. Miyasaka, S. Inoue, S. Tokita, J. Limpouch, T. Mocek, and S. Sakabe, “Metal-like self-organization of periodic nanostructures on silicon and silicon carbide under femtosecond laser pulses,” J. Appl. Phys. 114, 194903 (2013).

M. Shimizu, M. Hashida, Y. Miyasaka, S. Tokita and S. Sakabe, “Unidirectionally oriented nanocracks on metal surfaces irradiated by low-fluence femtosecond laser pulses,” Appl. Phys. Lett. 103, 174106 (2013).

H. Nakajima, S. Tokita, S. Inoue, M. Hashida, and S. Sakabe, “Divergence-free transport of laser-produced fast electrons along a meter-long wire target,” Phys. Rev. Lett. 110, 155001 (2013).

M. Hashida, Y. Ikuta, Y. Miyasaka, S. Tokita, and S. Sakabe “Simple formula for the interspaces of periodic grating structures self-organized on metal surfaces by femtosecond laser ablation,” Appl. Phys. Lett. 102, 174106 (2013).

F. Jahangiri, M. Hashida, S. Tokita, T. Nagashima, M. Hangyo, and S. Sakabe, “Enhancing the energy of terahertz radiation from plasma produced by intense femtosecond laser pulses,” Appl. Phys. Lett. 102, 191106 (2013).

S. Inoue, S. Tokita, K. Otani, M. Hashida, M. Hata, H. Sakagami, Taguchi, and S. Sakabe, “Autocorrelation measurement of fast electron pulses emitted through the interaction of femtosecond laser pulses with a solid target,” Phys. Rev. Lett. 109, 185001 (2012).

M. Hashida, Y. Miyasaka, Y. Ikuta, K. Otani, S. Tokita, and S. Sakabe, “Periodic nao-grating structures produced by femtosecond laser pulses for metals with low- and high-melting points,” J. Laser Micro Nanoeng. 7, 194–197(2012) .

Y. Miyasaka, M. Hashida, Y. Ikuta, K. Otani, S. Tokita, and S. Sakabe, “Nonthermal emission of energetic ions from a metal surface irradiated by extremely low-fluence femtosecond laser pulses,” Phys. Rev. B 86, 075431 (2012).

F. Jahangiri, M. Hashida, S. Tokita, T. Nagashima, K. Otani, M. Hangyo, and S. Sakabe, “Directional terahertz emission from air plasma generated by linearly polarized intense femtosecond laser pulses,” Appl. Phys. Express 5, 026201 (2012).

F. Jahangiri, M. Hashida, T. Nagashima, S. Tokita, M. Hangyo, and S. Sakabe, “Intense terahertz emission from atomic cluster plasma produced by intense femtosecond laser pulses,” Appl. Phys. Lett. 99, 261503 (2011).

F. Jahangiri, M. Hashida, S. Tokita, T. Nagashima, M. Hangyo, and S. Sakabe, “Directional elliptically polarized terahertz emission from air plasma produced by circularly polarized intense femtosecond laser pulses,” Appl. Phys. Lett. 99, 161505 (2011).

K. Otani, S. Tokita, T. Nishoji, S. Inoue, M. Hashida, and S. Sakabe, “Efficient laser-proton acceleration from an insulating foil with an attached small metal disk,” Appl. Phys. Lett. 99, 161501 (2011).

S. Inoue, S. Tokita, K. Otani, M. Hashida, and S. Sakabe, “Femtosecond electron deflectometry for measuring transient fields generated by laser-accelerated fast electrons,” Appl. Phys. Lett. 99, 31501 (2011).

S. Tokita, M. Murakami, S. Shimizu, M. Hashida, and S. Sakabe, “12 W Q-switched Er:ZBLAN fiber laser at 2.8 μm,” Opt. Lett. 36, 2812–2814 (2011).

S. Tokita, K. Otani, T. Nishoji, S. Inoue, M. Hashida, and S. Sakabe, “Collimated fast electron emission from long wires irradiated by intense femtosecond laser pulses,” Phys. Rev. Lett. 106, 255001 (2011).

M. Hashida, Y. Miyasaka, Y. Ikuta, S. Tokita, and S. Sakabe, “Crystal structures on a copper thin film with a surface of periodic self-organized nanostructures induced by femtosecond laser pulses,” Phys. Rev. B 83, 235413 (2011).

S. Inoue, S. Tokita, T. Nishoji, S. Masuno, K. Otani, M. Hashida, and S. Sakabe, “Single-shot microscopic electron imaging of intense femtosecond laser-produced plasmas,” Rev. Sci. Instrum. 81, 123302 (2010).

S. Tokita, M. Hirokane, M. Murakami, S. Shimizu, M. Hashida, and S. Sakabe, “Stable 10 W Er:ZBLAN fiber laser operating at 2.71–2.88 μm,” Opt. Lett. 35, 3943–3945 (2010).

S. Tokita, M. Hashida, S. Inoue, T. Nishoji, K. Otani, and S. Sakabe, “Single-shot femtosecond electron diffraction with laser-accelerated electrons: Experimental demonstration of electron pulse compression,” Phys. Rev. Lett. 105, 215004 (2010).

K. Okamuro, M. Hashida, Y. Miyasaka, Y. Ikuta, S. Tokita, and S. Sakabe, “Laser fluence dependence of periodic grating structures formed on metal surfaces under femtosecond laser pulse irradiation,” Phys. Rev. B 82, 165417 (2010).

M. Hashida, S. Namba, K. Okamuro, S. Tokita, and S. Sakabe, “Ion emission from a metal surface through a multiphoton process and optical feld ionization,” Phys. Rev. B 81, 115442 (2010).

S. Tokita, M. Murakami, S. Shimizu, M. Hashida, and S. Sakabe, “Liquid-cooled 24 W mid-infrared Er:ZBLAN fiber laser,” Opt. Lett. 34, 3062–3064 (2009).

S. Tokita, S. Inoue, S. Masuno, M. Hashida, and S. Sakabe, “Single-shot ultrafast electron diffraction with a laser-accelerated sub-MeV electron pulse,” Appl. Phys. Lett. 95, 111911 (2009).

長島健，橋田昌樹，時田茂樹，阪部周二，“高強度フェムト秒光パルス励起原子クラスタからのテラヘルツ波放射”， 電気学会論文誌A 129, 776–780 (2009).

S. Sakabe, M. Hashida, S. Tokita, and K. Otani, “Laser Energy Scaling Law for the Yield of Neutrons Generated by Intense Femtosecond Laser-Cluster Interactions,” J. Plasma Fusion Res. 4, 041 (2009).

M. Hashida, H. Mishima, S. Tokita, and S. Sakabe, “Non-thermal ablation of expanded polytetrafluoroethylene with an intense femtosecond-pulse laser,” Opt. Express 17, 13116–13121 (2009).

T. Nagashima, H. Hirayama, K. Shibuya, M. Hangyo, M. Hashida, S. Tokita, and S. Sakabe, “Terahertz pulse radiation from argon clusters irradiated with intense femtosecond laser pulses,” Opt. Express 17, 8907–8912 (2009).

S. Sakabe, M. Hashida, S. Tokita, S. Namba, and K. Okamuro, “Mechanism for self-formation of periodic grating structures on a metal surface by a femtosecond laser pulse,” Phys. Rev. B 79, 033409 (2009).

H. Niki, T. Kuroyanagi, Y. Horiuchi, S. Tokita, “Laser Isotope Separation of Zirconium for Nuclear Transmutation Process,” J. Nucl. Sci. Technol. 5, 101-104 (2008).

S. Tokita, M. Hashida, S. Masuno, S. Namba, and S. Sakabe, “0.3% energy stability, 100-millijoule-class, Ti:sapphire chirped-pulse eight-pass amplification system,” Opt. Express 16, 14875–14881 (2008).

安原亮，時田茂樹，河仲準二，川嶋利幸，菅博文，八木秀喜，野沢星輝，柳谷高公，藤本靖，吉田英次，中塚正大，“高出力レーザー用ファラデー材料：低温冷却TGGセラミックスの磁気光学定数及び熱伝導率の測定”，レーザー研究35，806–810 (2007)．

R. Yasuhara, S. Tokita, J. Kawanaka, T. Kawashima, H. Kan, H. Yagi, H. Nozawa, T. Yanagitani, Y. Fujimoto, H. Yoshida, M. Nakatsuka, “Cryogenic temperature characteristics of Verdet constant on terbium gallium garnet ceramics,” Opt. Express 15, 11255–11261 (2007).

Y. Akahane, M. Aoyama, K. Ogawa, K. Tsuji, S. Tokita, J. Kawanaka, H. Nishioka, and K. Yamakawa, “High-energy, diode-pumped, picosecond Yb:YAG chirped-pulse regenerative amplifier for pumping optical parametric chirped-pulse amplification,” Opt. Lett. 32, 1899–1901 (2007).

K. Ogawa, Y. Akahane, M. Aoyama, K. Tsuji, S. Tokita, J. Kawanaka, H. Nishioka, and K. Yamakawa, “Multi-millijoule, diode-pumped, cryogenically-cooled Yb:KY(WO4)2 chirped-pulse regenerative amplifier,” Opt. Express 15, 8598–8602 (2007).

S. Tokita, J. Kawanaka, Y. Izawa, M. Fujita, and T. Kawashima, “23.7-W picosecond cryogenic-Yb:YAG multipass amplifier,” Opt. Express 15, 3955–3961 (2007).

井澤友策，時田茂樹，橋田昌樹，藤田雅之，井澤靖和，“フェムト秒レーザーと単結晶Siの超高速相互作用”，レーザー研究 34, 773–778 (2006).

H. Niki, K. Motoki, M. Yasui, Y. Horiuchi, S. Tokita and Y. Izawa, “Selectivity and efficiency of laser isotope separation processes of gadolinium,” J. Nucl. Sci. Tech. 43, 427–431 (2006).

S. Tokita, J. Kawanaka, M. Fujita, T. Kawashima, and Y. Izawa, “Efficient high-average-power operation of Q-switched cryogenic Yb:YAG laser oscillator,” Jpn. J. Appl. Phys. 44, L1529–L1531 (2005).

J. Kawanaka, S. Tokita, H. Nishioka, M. Fujita, K. Yamakawa, K. Ueda, and Y. Izawa, “Dramatically improved laser characteristics of diode-pumped Yb-doped materials at low temperature,” Laser Phys. 15, 1306–1312 (2005).

H. Niki, T. Tanikawa, S. Tokita, and Y. Izawa, “Measurement of hyperfine structure and isotope shift of transitions in gadolinium using blue diode laser,” Jpn. J. Appl. Phys. 44, 6075–6078 (2005).

S. Tokita, J. Kawanaka, M. Fujita, T. Kawashima, and Y. Izawa, “Sapphire-conductive end-cooling of high power cryogenic Yb:YAG lasers,” Appl. Phys. B 80, 635–638 (2005).

T. Shoji, S. Tokita, J. Kawanaka, M. Fujita, and Y. Izawa, “Quantum-defect-limited operation of diode-pumped Yb:YAG laser at low temperature,” Jpn. J. Appl. Phys. 43, L496–L498 (2004).

S. Tokita, Y. Izawa, and H. Niki, “Selectivity loss due to magnetic field in laser isotope separation of gadolinium based on polarization selection rules,” J. Nucl. Sci. Tech. 40, 1014–1018 (2003).

仁木秀明，時田茂樹，井澤靖和，“ガドリニウムのレーザー同位体分離”，レーザー研究31，156–160 (2003)．

時田茂樹，仁木秀明，北嶋巌，“近赤外半導体レーザーを用いた光音響ガス検出装置の開発”，レーザー研究30，193–197 (2002)．

S. Jackson, S. Tokita, M. R. Majewski, O. Henderson-Sapir, D. J. Ottaway, R. Vallée, M. Bernier, F. Maes, "Chapter 7 - Spectroscopy of the rare-earth-ion transitions in fluoride glasses,"  Mid-Infrared Fiber Photonics (Woodhead Publishing), Editors: S. Jackson, M. Bernier, R. Vallée, ISBN: 9780128180174, pp. 333-399 (2022).

S. Sakabe, M. Hashida, S. Tokita, Y. Miyasaka, M. Shimizu, and S. Inoue, “Chap. 6: Scaling of Grating Spacing with Femtosecond Laser Fluence for Self-organized Periodic Structures on Metal” in “Progress in Nonlinear Nano-Optics”, Editors: S. Sakabe, C. Lienau, and R. Grunwald, Publisher: Springer, ISBN: 978-3-319-12216-8 (2014).

時田茂樹，“中赤外ファイバレーザーの進展”, レーザー研究51, 22 (2023). （査読付き）

時田茂樹，村上政直，“中赤外ファイバレーザーの進展と応用展開” , 光アライアンス 33, 35–37 (2022).

時田茂樹，上原日和，安原亮，合谷賢治, 古瀬裕章，村上政直，Andrey V. Pushkin，Fedor V. Potemkin, “中赤外Er:ZBLANファイバレーザー励起Fe:ZnSeレーザー”, レーザー研究49, 402 (2021). （査読付き）

小田晃一，小西大介，三澤明日香，佐原諒，都築聡，村上政直，時田茂樹，“中赤外Erファイバーレーザーによるレーザー加工技術”, 光アライアンス32, 18–23 (2021).

時田茂樹，“DPSSLの過去と未来”, レーザー研究48, 517 (2020).

時田茂樹，上原日和，合谷賢治，小西大介，佐原諒，村上政直，“波長安定化された35W中赤外ファイバーレーザー発振器および増幅器”，レーザー学会第548回研究会報告，RTM-20-18～22，33–38 (2020).

K. Goya, H. Uehara, D. Konishi, M. Murakami, S. Tokita “High-index-contrast Bragg gratings fabricated in fluoride fiber with 513-nm femtosecond laser,” Proc. SPIE 10899, Components and Packaging for Laser Systems V, 1089919 (2019).

時田茂樹，“テラヘルツ帯のパワーフォトニクスへ向けた超高強度テラヘルツ光源”，フォトニクスニュース 4, 47–51 (2018).

時田茂樹，森芳孝，森道昭，河仲凖二，“中性子源駆動用高平均出力レーザーの実現性検討”，レーザー研究46, 571–575 (2018). （査読付き）

河仲準二，時田茂樹，椿本幸治，吉田英次，郭晓杨，李朝阳， 藤岡加奈，森尾登，荻野純平，本越伸二，阪本雅昭，中田芳樹， 安原亮，藤本靖，吉村政志，藤田雅之，宮永憲明，植田憲一，レーザー研究46, 576–571 (2018). （査読付き）

時田茂樹，寺本研介，寺尾季倫，井上峻介，安原亮，阪部周二，橋田晶樹，長島健，宮永憲明，河仲準二，レーザー学会第503回研究会報告，RTM-17-01～04，7–10 (2017).

時田茂樹，“中赤外ファイバーレーザー”，オプトニューズ 10, 10532 (2015).

藤本靖，時田茂樹，“新波長・新材料ファイバレーザー”，OPTRONICS 400，139–143 (2015).

阪部周二，倉田博基，橋田昌樹，時田茂樹，井上峻介，根本隆，治田充貴，渡邉浩太，“電子顕微鏡の進化とレーザー加速電子を用いた超高速電子線回折法”，レーザー研究43, 138–143 (2015). （査読付き）

橋田昌樹, 宮坂泰弘, 清水雅弘, 時田茂樹, 阪部周二，“高強度短パルスレーザを用いたレーザナノ加工による微細構造の形成”，光アライアンス 24, 39–43 (2013).

時田茂樹，村上政直，清水政二，橋田昌樹，阪部周二，“中赤外エルビウムファイバーレーザー”，日本レーザー医学会誌 32，158–165 (2012). （査読付き）

河仲準二，時田茂樹，“ミリジュール級出力を目指した液体窒素冷却型高平均出力ピコ秒レーザー”，OPTRONICS 336, 59–62 (2009).

時田茂樹，“低温固体レーザー ―冷却の利点と最近の動向―”，レーザー研究 36, 538–543 (2008). （査読付き）