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Journal Articles

Simple model of multi-scale and multi-site emissions for porous ionic liquid electrospray thrusters

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Koki Takagi, Yusuke Yamashita, Ryudo Tsukizaki, Kazutaka Nishiyama, Yoshinori Takao
Journal: Journal of Applied Physics
J. Appl. Phys. 135, 244502 (2024)
https://doi.org/10.1063/5.0195699
Published: June 2024
View article titled, Simple model of multi-scale and multi-site emissions for porous ionic liquid electrospray thrusters
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Journal Articles

Density profile transition and high-energy electron transport in a magnetically expanding radio frequency plasma

Kazuma Emoto, Kazunori Takahashi, Yoshinori Takao
Journal: Physics of Plasmas
Phys. Plasmas 30, 013509 (2023)
https://doi.org/10.1063/5.0126901
Published: January 2023
View article titled, Density profile transition and high-energy electron transport in a magnetically expanding radio frequency plasma
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Journal Articles

Numerical investigation of internal plasma currents in a magnetic nozzle

Kazuma Emoto, Kazunori Takahashi, Yoshinori Takao
Journal: Physics of Plasmas
Phys. Plasmas 28, 093506 (2021)
https://doi.org/10.1063/5.0053336
Published: September 2021
View article titled, Numerical investigation of internal plasma currents in a magnetic nozzle
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Journal Articles

Electron loss mechanisms in a miniature microwave discharge water neutralizer

Yosuke Sato, Hiroyuki Koizumi, Masakatsu Nakano, Yoshinori Takao
Journal: Physics of Plasmas
Phys. Plasmas 27, 063505 (2020)
https://doi.org/10.1063/5.0002336
Published: June 2020
View article titled, Electron loss mechanisms in a miniature microwave discharge water neutralizer
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Journal Articles

Electron extraction enhancement via the magnetic field in a miniature microwave discharge neutralizer

Yosuke Sato, Hiroyuki Koizumi, Masakatsu Nakano, Yoshinori Takao
Journal: Journal of Applied Physics
J. Appl. Phys. 126, 243302 (2019)
https://doi.org/10.1063/1.5127805
Published: December 2019
View article titled, Electron extraction enhancement via the magnetic field in a miniature microwave discharge neutralizer
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Journal Articles

High-performance planar-type electron source based on a graphene-oxide-semiconductor structure

Katsuhisa Murakami, Joji Miyaji, Ryo Furuya, Manabu Adachi, Masayoshi Nagao, Yoichiro Neo, Yoshinori Takao, Yoichi Yamada, Masahiro Sasaki, Hidenori Mimura
Journal: Applied Physics Letters
Appl. Phys. Lett. 114, 213501 (2019)
https://doi.org/10.1063/1.5091585
Published: May 2019
View article titled, High-performance planar-type electron source based on a graphene-oxide-semiconductor structure
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Journal Articles

Effects of negative ions on discharge characteristics of water plasma source for a miniature microwave discharge ion thruster

Kengo Nakamura, Hiroyuki Koizumi, Masakatsu Nakano, Yoshinori Takao
Journal: Physics of Plasmas
Phys. Plasmas 26, 043508 (2019)
https://doi.org/10.1063/1.5092754
Published: April 2019
View article titled, Effects of negative ions on discharge characteristics of water plasma source for a miniature microwave discharge ion thruster
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Journal Articles

Microplasma thruster powered by X-band microwaves

Takeshi Takahashi, Daisuke Mori, Tetsuo Kawanabe, Yoshinori Takao, Koji Eriguchi, Kouichi Ono
Journal: Journal of Applied Physics
J. Appl. Phys. 125, 083301 (2019)
https://doi.org/10.1063/1.5054790
Published: February 2019
View article titled, Microplasma thruster powered by X-band microwaves
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Journal Articles

Development of a momentum vector measurement instrument in steady-state plasmas

Kazunori Takahashi, Takeharu Sugawara, Hikaru Akahoshi, Yoshinori Takao, Akira Ando
Journal: AIP Advances
AIP Advances 8, 105117 (2018)
https://doi.org/10.1063/1.5050553
Published: October 2018
View article titled, Development of a momentum vector measurement instrument in steady-state plasmas
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Journal Articles

Origin of plasma-induced surface roughening and ripple formation during plasma etching: The crucial role of ion reflection

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Takumi Hatsuse, Nobuya Nakazaki, Hirotaka Tsuda, Yoshinori Takao, Koji Eriguchi, Kouichi Ono
Journal: Journal of Applied Physics
J. Appl. Phys. 124, 143301 (2018)
https://doi.org/10.1063/1.5041846
Published: October 2018
View article titled, Origin of plasma-induced surface roughening and ripple formation during plasma etching: The crucial role of ion reflection
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Journal Articles

Thrust imparted by a stepped-diameter magnetic nozzle rf plasma thruster

Kazunori Takahashi, Yoshinori Takao, Akira Ando
Journal: Applied Physics Letters
Appl. Phys. Lett. 113, 034101 (2018)
https://doi.org/10.1063/1.5041034
Published: July 2018
View article titled, Thrust imparted by a stepped-diameter magnetic nozzle rf plasma thruster
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Journal Articles

Ripple formation on Si surfaces during plasma etching in Cl2

Nobuya Nakazaki, Haruka Matsumoto, Soma Sonobe, Takumi Hatsuse, Hirotaka Tsuda, Yoshinori Takao, Koji Eriguchi, Kouichi Ono
Journal: AIP Advances
AIP Advances 8, 055027 (2018)
https://doi.org/10.1063/1.5017070
Published: May 2018
View article titled, Ripple formation on Si surfaces during plasma etching in Cl<sub>2</sub>
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Journal Articles

Effects of neutral distribution and external magnetic field on plasma momentum in electrodeless plasma thrusters

Kazuki Takase, Kazunori Takahashi, Yoshinori Takao
Journal: Physics of Plasmas
Phys. Plasmas 25, 023507 (2018)
https://doi.org/10.1063/1.5015937
Published: February 2018
View article titled, Effects of neutral distribution and external magnetic field on plasma momentum in electrodeless plasma thrusters
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Journal Articles

Effects of E × B drift on electron transport across the magnetic field in a miniature microwave discharge neutralizer

Kenta Hiramoto, Yuichi Nakagawa, Hiroyuki Koizumi, Yoshinori Takao
Journal: Physics of Plasmas
Phys. Plasmas 24, 064504 (2017)
https://doi.org/10.1063/1.4989734
Published: June 2017
View article titled, Effects of <em>E</em> × <em>B</em> drift on electron transport across the magnetic field in a miniature microwave discharge neutralizer
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Journal Articles

Surface smoothing during plasma etching of Si in Cl2

Nobuya Nakazaki, Haruka Matsumoto, Hirotaka Tsuda, Yoshinori Takao, Koji Eriguchi, Kouichi Ono
Journal: Applied Physics Letters
Appl. Phys. Lett. 109, 204101 (2016)
https://doi.org/10.1063/1.4967474
Published: November 2016
View article titled, Surface smoothing during plasma etching of Si in Cl<sub>2</sub>
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Journal Articles

Modifications of plasma density profile and thrust by neutral injection in a helicon plasma thruster

Kazunori Takahashi, Yoshinori Takao, Akira Ando
Journal: Applied Physics Letters
Appl. Phys. Lett. 109, 194101 (2016)
https://doi.org/10.1063/1.4967193
Published: November 2016
View article titled, Modifications of plasma density profile and thrust by neutral injection in a helicon plasma thruster
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Journal Articles

Neutral-depletion-induced axially asymmetric density in a helicon source and imparted thrust

Kazunori Takahashi, Yoshinori Takao, Akira Ando
Journal: Applied Physics Letters
Appl. Phys. Lett. 108, 074103 (2016)
https://doi.org/10.1063/1.4942469
Published: February 2016
View article titled, Neutral-depletion-induced axially asymmetric density in a helicon source and imparted thrust
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Journal Articles

Publisher's Note: “Molecular dynamics simulations of Si etching in Cl- and Br-based plasmas: Cl+ and Br+ ion incidence in the presence of Cl and Br neutrals” [J. Appl. Phys. 118 , 233304 (2015)]

Nobuya Nakazaki, Yoshinori Takao, Koji Eriguchi, Kouichi Ono
Journal: Journal of Applied Physics
J. Appl. Phys. 119, 059901 (2016)
https://doi.org/10.1063/1.4941034
Published: February 2016
View article titled, Publisher's Note: “Molecular dynamics simulations of Si etching in Cl- and Br-based plasmas: Cl<sup>+</sup> and Br<sup>+</sup> ion incidence in the presence of Cl and Br neutrals” [J. Appl. Phys. 118 , 233304 (2015)]
Open the PDF for Publisher's Note: “Molecular dynamics simulations of Si etching in Cl- and Br-based plasmas: Cl<sup>+</sup> and Br<sup>+</sup> ion incidence in the presence of Cl and Br neutrals” [J. Appl. Phys. 118 , 233304 (2015)] in another window
Journal Articles

Molecular dynamics simulations of Si etching in Cl- and Br-based plasmas: Cl+ and Br+ ion incidence in the presence of Cl and Br neutrals

Nobuya Nakazaki, Yoshinori Takao, Koji Eriguchi, Kouichi Ono
Journal: Journal of Applied Physics
J. Appl. Phys. 118, 233304 (2015)
https://doi.org/10.1063/1.4937449
Published: December 2015
View article titled, Molecular dynamics simulations of Si etching in Cl- and Br-based plasmas: Cl<sup>+</sup> and Br<sup>+</sup> ion incidence in the presence of Cl and Br neutrals
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Journal Articles

Numerical validation of axial plasma momentum lost to a lateral wall induced by neutral depletion

Yoshinori Takao, Kazunori Takahashi
Journal: Physics of Plasmas
Phys. Plasmas 22, 113509 (2015)
https://doi.org/10.1063/1.4935903
Published: November 2015
View article titled, Numerical validation of axial plasma momentum lost to a lateral wall induced by neutral depletion
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