Faculty Profiles - KUWAHARA, Makoto

Papers - KUWAHARA, Makoto

Division display >> ／ All the affair displays 1 - 94 of about 94

Giant impurity effect on anomalous Hall effect of Mn3Sn Reviewed

R. Yano, S. Kihara, M. Yoneda, H. T. N. Vu, H. Suto, N. Katayama, T. Yamaguchi, M. Kuwahara, M. Suzuki, K. Saitoh, S. Kashiwaya

The Journal of Chemical Physics Vol. 18 ( 160 ) page： 184708 2024.5

Membrane molecule, bouncer regulates sperm binding activity in immature oocytes in a viviparous teleost species Poecilia reticulata (guppy) Reviewed

Junki Yoshida, Yuki Tajika, Kazuko Uchida, Makoto Kuwahara, Kaori Sano, Takayuki Suzuki, Eiichi Hondo, Atsuo Iida

Development, Growth & Differentiation 2024

Time-resolved measurement using spin-polarized pulsed electron beam in transmission electron microscopy Invited Reviewed International coauthorship

Makoto Kuwahara

Vacuum and Surface Science Vol. 66 ( 12 ) 2023.12

Three-dimensional building of anisotropic gold nanoparticles under confinement in submicron capsules

Yamada, R; Kuwahara, M; Kuwahara, S

NANOSCALE ADVANCES Vol. 5 ( 21 ) page： 5780 - 5785 2023.10

Temporal resolution in transmission electron microscopy using a photoemission electron source

Kuwahara, M; Agemura, T

MICROSCOPY Vol. 72 ( 2 ) page： 97 - 110 2023.4

原子の動きを「コマ撮り」する小型装置の開発 Invited Reviewed

羽田真毅，田久保耕，矢嶋渉，桒原真人，腰原伸也

Isotope News ( 786 ) page： 10 - 14 2023.4

Carbonization of a Molybdenum Substrate Surface and Nanoparticles by a One-Step Method of Femtosecond Laser Ablation in a Hexane Solution Reviewed International coauthorship

Yoshiki Tanaka, Xi Yu, Shusaku Terakawa, Takafumi Ishida, Koh Saitoh, Hongwei Zhang, Toru Asaka, Fumihiro Itoigawa, Makoto Kuwahara, Shingo Ono

ACS Omega 2023.2

Static Hydrophobic Cuprous Oxide Surface Fabricated via One-Step Laser-Induced Oxidation of a Copper Substrate International coauthorship

Yu, X; Tanaka, Y; Kakiuchi, T; Ishida, T; Saitoh, K; Itoigawa, F; Kuwahara, M; Ono, S

MICROMACHINES Vol. 14 ( 1 ) 2023.1

Extension of focal depth by electron quasi-Bessel beam in atomic-resolution scanning transmission electron microscopy

Ishida, T; Owaki, T; Ohtsuka, M; Kuwahara, M; Saitoh, K; Kawasaki, T

APPLIED PHYSICS EXPRESS Vol. 15 ( 11 ) 2022.11

Copper sulfide nanoribbon growth triggered by carbon nanotube aggregation via dialysis

Tanaka, T; Kurihara, M; Kuwahara, M; Kuwahara, S

RSC ADVANCES Vol. 12 ( 48 ) page： 31363 - 31368 2022.10

Transient electron energy-loss spectroscopy of optically stimulated gold nanoparticles using picosecond pulsed electron beam

Makoto Kuwahara, Lira Mizuno, Rina Yokoi, Hideo Morishita, Takafumi Ishida, Koh Saitoh, Nobuo Tanaka, Shota Kuwahara, Toshihide Agemura

Applied Physics Letters Vol. 121 ( 14 ) page： 143503 2022.10

High-quality resonances in terahertz composite slabs based on metal gratings

Liu, DJ; Yu, X; Wu, F; Cao, J; Zhao, YL; Shi, H; Xiao, SY; Kuwahara, M; Itoigawa, F; Ono, S; Chen, L; Liu, F

JOURNAL OF OPTICS Vol. 24 ( 10 ) 2022.10

Nanoscale Characteristics of a Room-Temperature Coexisting Phase of Magnetic Skyrmions and Antiskyrmions for Skyrmion-Antiskyrmion-Based Spintronic Applications

Shimizu, D; Nagase, T; So, YG; Kuwahara, M; Ikarashi, N; Nagao, M

ACS APPLIED NANO MATERIALS Vol. 5 ( 9 ) page： 13519 - 13528 2022.9

Generation of sub-100 fs electron pulses for time-resolved electron diffraction using a direct synchronization method

Takubo, K; Banu, S; Jin, SC; Kaneko, M; Yajima, W; Kuwahara, M; Hayashi, Y; Ishikawa, T; Okimoto, Y; Hada, M; Koshihara, S

REVIEW OF SCIENTIFIC INSTRUMENTS Vol. 93 ( 5 ) 2022.5

Improvement of type-I method for observing magnetic contrast using scanning electron microscope under tilting-deceleration condition

Morishita, H; Kohashi, T; Yamamoto, H; Kuwahara, M

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS Vol. 546 2022.3

Comment on "Intensity Interference in a Coherent Spin-Polarized Electron Beam" Reply

Kuwahara, M; Yoshida, Y; Nagata, W; Nakakura, K; Furui, M; Ishida, T; Saitoh, K; Ujihara, T; Tanaka, N

PHYSICAL REVIEW LETTERS Vol. 127 ( 22 ) 2021.11

Brightness evaluation of pulsed electron gun using negative electron affinity photocathode developed for time-resolved measurement using scanning electron microscope Reviewed

1. H. Morishita, T. Ohshima, K. Otsuga, M. Kuwahara, T. Agemura, Y. Ose

Ultramicroscopy Vol. 230 page： 113386 2021.9

Photoinduced oxygen transport in cobalt double-perovskite crystal EuBaCo2O5.39

Hada, M; Ohmura, S; Ishikawa, T; Saigo, M; Keio, N; Yajima, W; Suzuki, T; Urushihara, D; Takubo, K; Masaki, Y; Kuwahara, M; Tsuruta, K; Hayashi, Y; Matsuo, J; Yokoya, T; Onda, K; Shimojo, F; Hase, M; Ishihara, S; Asaka, T; Abe, N; Arima, TH; Koshihara, SY; Okimoto, Y

APPLIED MATERIALS TODAY Vol. 24 2021.9

Observation of domain wall bimerons in chiral magnets

Nagase, T; So, YG; Yasui, H; Ishida, T; Yoshida, HK; Tanaka, Y; Saitoh, K; Ikarashi, N; Kawaguchi, Y; Kuwahara, M; Nagao, M

NATURE COMMUNICATIONS Vol. 12 ( 1 ) 2021.6

Performance of a silicon-on-insulator direct electron detector in a low-voltage transmission electron microscope

T. Ishida, A. Shinozaki, M. Kuwahara, T. Miyoshi, K. Saitoh, Y. Arai

Microscopy Vol. 70 ( 3 ) page： 321 - 325 2021.6

Intensity Interference in a Coherent Spin-Polarized Electron Beam

Makoto Kuwahara, Yuya Yoshida, Wataru Nagata, Kojiro Nakakura, Masato Furui, Takafumi Ishida, Koh Saitoh, Toru Ujihara, and Nobuo Tanaka

Vol. 126 ( 12 ) page： 125501 2021.3

Time-resolved Transmission Electron Microscope Using Pulsed Electron Waves Invited Reviewed

Makoto Kuwahara, Rina Yokoi, Lira Mizuno, Nobutaka Togashi, Yuya Yoshida, Wataru Nagata, Masato Furui, Kojiro Nakakura and Takafumi Ishida

Kenbikyo Vol. 55 ( 3 ) page： 131 - 138 2020.12

Room-temperature magnetic skyrmion in epitaxial thin films of Fe_2-xPd_xMo_3N with the filled beta-Mn-type chiral structure

Vol. 117 ( 14 ) 2020.10

Localized Surface Plasmon Resonance-Induced Welding of Gold Nanotriangles and the Local Plasmonic Properties for Multicolor Sensing and Light-Harvesting Applications International journal

Shota Kuwahara, Yuka Narita, Lila Mizuno, Hiroki Kurotsu, Hiroki Yoshino, and Makoto Kuwahara

ACS Applied Nano Materials Vol. 3 ( 6 ) page： 5172 - 5177 2020.6

Resolution improvement of low-voltage scanning electron microscope by bright and monochromatic electron gun using negative electron affinity photocathode International journal

H. Morishita, T. Ohshima, M. Kuwahara, Y. Ose, T. Agemura

Journal of Applied Physics Vol. 127 ( 16 ) page： 164902 2020.4

Smectic Liquid-Crystalline Structure of Skyrmions in Chiral Magnet Co_8.5Zn_7.5Mn₄(110) Thin Film

Vol. 123 ( 13 ) 2019.9

スピン偏極パルス透過電子顕微鏡の開発 Reviewed

桑原真人

まてりあ Vol. 58 ( 5 ) page： 269-274 2019.5

Authorship：Lead author,　Corresponding author Language：Japanese Publishing type：Research paper (scientific journal)

レーザー駆動型電子線源を活用した新しい分析手法を紹介．コヒーレントパルス電子線の利用により，電子顕微鏡を用いた材料分析に新たな測定軸を提供する

DOI： 10.2320/materia.58.269

Development of angle-resolved spectroscopy system of electrons emitted from a surface with negative electron affinity state

Ichihashi, F; Dong, XY; Inoue, A; Kawaguchi, T; Kuwahara, M; Ito, T; Harada, S; Tagawa, M; Ujihara, T

REVIEW OF SCIENTIFIC INSTRUMENTS Vol. 89 ( 7 ) 2018.7

Coherent pulse beam in spin-polarized TEM using an NEA photocathode

Kuwahara, M; Ujihara, T; Saitoh, K; Tanaka, N

2018 31ST INTERNATIONAL VACUUM NANOELECTRONICS CONFERENCE (IVNC) 2018

Temperature dependence of carrier relaxation time in gallium phosphide evaluated by photoemission measurements

Ichihashi, F; Kawaguchi, T; Dong, XY; Kuwahara, M; Ito, T; Harada, S; Tagawa, M; Ujihara, T

AIP ADVANCES Vol. 7 ( 11 ) 2017.11

Coherence of a pulsed electron beam extracted from a semiconductor photocathode in transmission electron microscope Reviewed

M. Kuwahara, K. Aoki, H. Suzuki, H. Asano, T. Ujihara, K. Saitoh, N. Tanaka

European Microscopy Congress 2016 2016.12

The Boersch effect in a picosecond pulsed electron beam emitted from a semiconductor photocathode Reviewed

Makoto Kuwahara, Yoshito Nambo, Kota Aoki, Kensuke Sameshima, Xiuguang Jin, Toru Ujihara, Hidefumi Asano, Koh Saitoh, Yoshikazu Takeda, and Nobuo Tanaka

Applied Physics Letters Vol. 109 page： 013108 2016.7

Ultrafast Time-Resolution and the Beam Quality in Spin-Polarized Pulsed-TEM Invited Reviewed

M. Kuwahara, T. Ujihara, H. Asano, K. Saitoh, N. Tanaka

Vol. 50 ( 3 ) page： 151-155 2016.1

Measurement of energy distribution of conduction electrons in superlattice by visible-light photoemission spectroscopy Reviewed

F. Ichihashi, K. Nishitani, X. Dong, T. Kawaguchi, M. Kuwahara, T. Ito, S. Harada, M. Tagawa, T.Ujihara

2015 IEEE 42nd Photovoltaic Specialist Conference (PVSC) page： 1-4 2015.12

Coherences of spin-polarized and pulsed electron beam extracted from a semiconductor photocathode in TEM Reviewed

M. Kuwahara, K. Sameshima, K. Aoki, H. Asano, T. Ujihara, K. Saitoh, N. Tanaka

Microscopy Vol. 64 ( 1 ) page： i17 2015.10

Photoemission lifetime of a negative electron affinity gallium nitride photocathode Reviewed

T. Nishitani, M. Tabuchi, H. Amano, T. Maekawa, M. Kuwahara, T. Meguro

Journal of Vacuum Science & Technology B Vol. 32 page： 06F901 2014.11

Coherence of a spin-polarized electron beam emitted from a semiconductor photocathode in a transmission electron microscope Reviewed

M. Kuwahara, S. Kusunoki, Y. Nambo, X. G. Jin, T. Ujihara, H. Asano, Y. Takeda, N. Tanaka

Applied Physics Letters Vol. 105 page： 193101 2014.11

Direct measurement of conduction miniband structure in superlattice by visible-light photoemission spectroscopy Reviewed

F. Ichihashi, D. Shimura, K. Nishitani, T. Kawaguchi, M. Kuwahara, T. Ito, S. Harada, H. Katsuno, M. Tagawa, T. Ujihara

2014 IEEE 40th Photovoltaic Specialist Conference (PVSC) 2014.10

Experimental investigation of an optimum configuration for a high-voltage photoemission gun for operation > 500 kV Reviewed

N. Nishimori, R. Nagai, S. Matsuba, R. Hajima, M. Yamamoto, Y. Honda, T. Miyajima, H. Iijima, M. Kuriki, M. Kuwahara

Phys. Rev. ST. Accel. Beam Vol. 17 page： 053401 2014.5

Spatial and temporal coherence in spin-polarized transmission electron microscopy Reviewed

M, Kuwahara, S. Kusunoki, Y. Nambo, K. Sameshima, K. Saitoh, T. Ujihara, H. Asano, Y. Takeda, N. Tanaka

AMTC Letters Vol. 4 page： 262 2014.5

Nano-second Time-Resolved Measurement in Spin-Polarized Pulse TEM Reviewed

Y. Nambo, M. Kuwahara, S. Kusunoki, K. Sameshima, K. Saitoh, T. Ujihara, H. Asano, Y. Takeda, N. Tanaka

AMTC Letters Vol. 4 page： 256 2014.5

Electron spectroscopy of conduction electrons excited by visible light utilizing NEA surface Reviewed

F. Ichihashi. D. Shimura, K. Nishitani, M. Kuwahara, T. Ito, S. Harada, M. Tagawa, T. Ujihara

2013 IEEE 39th Photovoltaic Specialists Conference (PVSC) 2014.2

Ultrahigh-resolution direct observation of mini-bands formed in InGaAs/AlGaAs superlattice Reviewed

D. Shimura, F. Ichihashi, K. Nishitani, S. Harada, M. Kuwahara, T. Ito, M. Matsunami, S. Kimura, T. Sakai, M. Tagawa, T. Ujihara

2013 IEEE 39th Photovoltaic Specialists Conference (PVSC) 2014.2

Progress in photocathode dc gun at the compact ERL Reviewed

N. Nishimori, R. Nagai, S. Matsuba, R. Hajima, M. Yamamoto, Y. Honda, T. Miyajima, H. Iijima, M. Kuriki, M. Kuwahara

Proceedings of 35th International Free-Electron Laser Conference page： 184 2013.8

Temporal response measurements of GaAs-based photocathodes Reviewed

Y. Honda, S. Matsuba, X. G. Jin, T. Miyajima, M. Yamamoto, T. Uchiyama, M. Kuwahara, Y. Takeda

Jpn. J. Appl. Phys Vol. 52 page： 086401 2013.7

Phase-locking of oscillating images using laser-induced spin-polarized pulse TEM Reviewed

Makoto Kuwahara, Yoshito Nambo, Soichiro Kusunoki, Xiuguang Jin, Koh Saitoh, Hidefumi Asano, Toru Ujihara, Yoshikazu Takeda, Tsutomu Nakanishi, and Nobuo Tanaka

Microscopy 2013.6

Generation of a 500-keV electron beam from a high voltage photoemission gun Reviewed

Nobuyuki Nishimori, Ryoji Nagai, Shunya Matsuba, Ryoichi Hajima, Masahiro Yamamoto, Tsukasa Miyajima, Yosuke Honda, Hokuto Iijima, Masao Kuriki, and Makoto Kuwahara

Applied Physics Letters Vol. 102 page： 234103 2013.6

Temporal Generation of a 500-keV electron beam from a high voltage photoemission gun Reviewed

N. Nishimori, R. Nagai, S. Matsuba, R. Hajima, M. Yamamoto, Y. Honda, T. Miyajima, H. Iijima, M. Kuriki, M. Kuwahara

Appl. Phys. Lett. Vol. 102 page： 234103 2013.6

Development of Spin-Polarized and Pulsed Transmission Electron Microscope Invited Reviewed

Makoto Kuwahara, Tsutomu Nakanishi, Yoshikazu Takeda, Nobuo Tanaka

KENBIKYO Vol. 48 ( 1 ) page： 3-8 2013.6

Progress in a photocathode DC gun at the compact ERL

N. Nishimori, R. Nagai, S. Matsuba, R. Hajima, M. Yamamoto, Y. Honda, T. Miyajima, H. Iijima, M. Kuriki, M. Kuwahara

FEL 2013: Proceedings of the 35th International Free-Electron Laser Conference page： 184-188 2013.1

Development of a photoemission dc gun at JAEA Reviewed

N. Nishimori, R. Nagai, S. Matsuba, R. Hajima, M. Yamamoto, Y. Honda, T. Miyajima, H. Iijima, M. Kuriki, M. Kuwahara

Proceedings of 34th International Free Electron Laser Conference page： 161 2012.8

30-kV spin-polarized transmission electron microscope using GaAs-GaAsP strained superlattice photocathode Reviewed

M Kuwahara, S. Kusunoki, X. G. Jin, T. Nakanishi, Y Takeda, K Saitoh, T Ujihara, H Asano, N Tanaka

Applied Physics Letters Vol. 101 page： 033102 2012.7

Development of Spin-Polarized and Pulsed TEM Reviewed

M Kuwahara, F. Ichihashi, S. Kusunoki, Y Takeda, K Saitoh, T Ujihara, H Asano, T. Nakanishi, N Tanaka

Journal of Physics: Conference Series Vol. 371 page： 012004 2012.7

Spin-polarized TEM using an NEA photocathode Reviewed

M. Kuwahara

Advanced Microscopy and Theoretical Calculations Letters Vol. 3 page： 180 2012.5

Mean Transverse Energy Measurement of Negative Electron Affinity GaAs-Based Photocathode Reviewed

S. Matsuba, Y. Honda, X. G. Jin, T. Miyajima, M. Yamamoto, T. Uchiyama, M. Kuwahara, Y. Takeda

Japanese Journal of Applied Physics Vol. 51 page： 046402 2012.3

Development of spin-polarized transmission electron microscope Reviewed

M. Kuwahara, Y. Takeda, K. Saitoh, T. Ujihara, H. Asano, T. Nakanishi, N Tanaka

Journal of Physics: Conference Series Vol. 298 page： 012016 2011.6

Development of a 500-kV photocathode DC gun for ERLs Reviewed

N Nishimori, R Nagai, M Yamamoto, Y Honda, T Miyajima, H Iijima, M Kuriki, M Kuwahara, S Okumi, T Nakanishi, R Hajima

Journal of Physics: Conference Series Vol. 298 page： 012005 2011.6

Dark-lifetime degradation of GaAs photo-cathode at higher temperature Reviewed

M. Kuriki, C. Shonaka, H. Iijima, D. Kubo, H. Okamoto, H. Higaki, K. Ito, M. Yamamoto, T. Konomi, S. Okumi, M. Kuwahara, T. Nakanishi

Nucl. Instr. and Meth.A Vol. 637 ( 1 ) page： S87-S90 2011.5

Pulsed spin-polarized electron source toward a transmission electron microscope

M. Kuwahara, T. Nakanishi, N. Tanaka, Y. Takeda, H. Asano, K. Saito, T. Ujihara

Proceedings of The 17th IFSM International Microscopy Congress page： I20 2010.9

High-voltage testing of a 500-kV dc photocathode electron gun Invited Reviewed

R. Nagai, R. Hajima, N. Nishimori, T. Muto, M. Yamamoto, Y. Honda, T. Muyajima, H. Iijima, M. Kuriki, M. Kuwahara, S. Okumi, T. Nakanishi

Review of Scientific Instruments Vol. 81 page： 033304 2010

Single electron spin resonance in a g-factor controlled semiconductor quantum dot Reviewed

T. Kutsuwa, M. Kuwahara, K. Ono, H. Kosaka

Physica E -Low-Dimensional System & Nano Structure Vol. 42 ( 4 ) page： 821-824 2010

Single charge detection of an electron created by a photon in a g-factor engineered quantum dot Reviewed

M. Kuwahara, T. Kutsuwa, K. Ono, H. Kosaka

Applied Physics Letters Vol. 96 ( 16 ) page： 163107 2010

High brightness and highly polarized electron beam for real-time measurement in SPLEEM Reviewed

M. Kuwahara, A. Mano, Y. Nakagawa, S. Okumi, T. Nakanishi, M. Suzuki, T. Yasue, T. Koshikawa, X. Jin, N. Yamamoto, T. Ujihara, Y. Takeda, M. Yamamoto, T. Ohshima, T. Kohashi, T. Saka, T. Kato, H. Horinaka

Proceedings of 7th International Symposium on Atomic Level Characterizations for New Materials and Devices 09 page： 84 2009.12

Development of a 500-kV photo-cathode DC gun for the ERL light sources in Japan Reviewed

N. Nishimori, R. Nagai, H. Iijima, R. Hajima, M. Yamamoto, T. Muto, Y. Honda, T. Miyajima, M. Kuwahara, S. Okumi, T. Nakanishi

Proceedings of Free Electron Laser 2009 page： 277 2009.9

Real time magnetic imaging by spin-polarized low energy electron microscopy with highly spin-polarized and high brightness electron gun Reviewed

M. Suzuki, M. Hashimoto, T. Yasue, T. Koshikawa, Y. Nakagawa, T. Konomi, A. Mano, N. Yamamoto, M. Kuwahara, M. Yamamoto, S. Okumi, T. Nakanishi, X. G. Jin, T. Ujihara, Y. Takeda, T. Kohashi, T. Ohshima, T. Saka, T. Kato, H. Horinaka

Applied Physics Express Vol. 3 page： 026601 2009

Electrical field control of trions in the structure for quantum media conversion

W. Ueno, H. Kosaka, T. Kutsuwa, M. Kuwahara, Y. Mitsumori, K. Edamatsu

Proceedings of 2008 International Symposium on Physics of Quantum Technology page： 74 2008

ESR measurements of quantum dot

T. Kutsuwa, M. Kuwahara, K. Ono, H. Kosaka

Proceedings of 2008 International Symposium on Physics of Quantum Technology page： 72 2008

Optical responses of quantum transport for single photo-electron detection

M. Kuwahara, T. Kutsuwa, K. Ono, H. Kosaka

Proceedings of 2008 International Symposium on Physics of Quantum Technology page： 70 2008

High brightness and high polarization electron source using transmission photocathode with GaAs-GaAsP superlattice layers Reviewed

N. Yamamoto, T. Nakanishi, A. Mano, Y. Nakagawa, S. Okumi, M. Yamamoto, T. Konomi, X. Jin, T. Ujihara, Y. Takeda, T. Ohshima, T. Saka, T. Kato, H. Horinaka, T. Yasue, T. Koshikawa, M. Kuwahara,

Journal of Applied Physics Vol. 103 page： 064905-1-7 2008

High field gradient polarized electron gun for ILC Reviewed

M. Yamamoto, N. Yamamoto, T. Nakanishi, S. Okumi, M. Kuwahara, K. Yasui, T. Morino, R. Sakai, K. Tamagaki, F. Furuta, M. Kuriki, H. Matsumoto, M. Yoshioka

Polarized Sources and Targets: Proceedings of the Eleventh International Workshop page： 138 2007

Generation of Spin Polarized Electron by Field Emission Reviewed

M. Kuwahara, T. Nakanishi, S. Okumi, M. Yamamoto, M. Miyamoto, N. Yamamoto, K. Yasui, T. Morino, R. Sakai, K. Tamagaki, K. Yamaguchi,

Polarized Sources and Targets: Proceedings of the Eleventh International Workshop page： 152 2007

Laser forcusing system for high brightness polarized electron source for SPLEEM Reviewed

A. Mano, N. Yamamoto, K. Tamagagi, S. Okumi, M. Yamamoto, M. Kuwahara, R. Sakai, T. Morino, A. Utsu, T. Nakanishi, T. Ohshima,

AIP Conference Proceedings, PROCEEDINGS OF THE 17TH INTERNATIONAL SPIN PHYSICS SYMPOSIUM Vol. 915 page： 1081 2007

Development of the new type polarized electron source for SPLEEM Reviewed

S. Okumi, N. Yamamoto, K. Tamagaki, A. Mano, R. Sakai, M. Yamamoto, M. Kuwahara, T. Morino, A. Utsu, T. Nakanishi, S. Kim, T. Ujihara, Y. Takeda, T. Ohshima, T. Yasue, T. koshikawa,

AIP Conference Proceedings, PROCEEDINGS OF THE 17TH INTERNATIONAL SPIN PHYSICS SYMPOSIUM Vol. 915 page： 1085 2007

Initial emittance measurements for polarized electron gun with NEA-GaAs type photocathode Reviewed

N. Yamamono, M. Yamamono, R. Sakai, T. Nakanishi, S. Okumi, M. Kuwahara, K. Tamagaki, T. Morino, A. Utsu, A. Mano, M. Kuriki, T. Ujihara, Y. Takeda,

AIP Conference Proceedings, PROCEEDINGS OF THE 17TH INTERNATIONAL SPIN PHYSICS SYMPOSIUM Vol. 915 page： 1071 2007

Production of high density polarized electron beam from GaAs-GaAsP superlattice photocathode Reviewed

M. Yamamono, N. Yamamono, S. Okumi, R. Sakai, M. Kuwahara, T. Morino, K. Tamagaki, A. Mano, A. Utsu, T. Nakanishi, C. Bo, T. Ujihara, Y. Takeda, M. Kuriki

AIP Conference Proceedings, PROCEEDINGS OF THE 17TH INTERNATIONAL SPIN PHYSICS SYMPOSIUM Vol. 915 page： 1025 2007

Spin-polarized electrons extracted from GaAs tips using field emission Reviewed

M. Kuwahara, T. Morino, T. Nakanishi,

AIP Conference Proceedings, PROCEEDINGS OF THE 17TH INTERNATIONAL SPIN PHYSICS SYMPOSIUM Vol. 915 page： 1055 2007

Thermal emittance measurements for electron beams produced from bulk and superlattice negative electron affinity photocathodes Reviewed

N. Yamamoto, M. Yamamoto, M. Kuwahara, R. Sakai, T. Morino, K. Tamagaki, A. Mano, A. Utsu, S. Okumi, T. Nakanishi, M. Kuriki, C. Bo, T. Ujihara, Y. Takeda

Journal of Applied Physics Vol. 102 page： 024904-1-6 2007

Field Emission of Spin-Polarized Electrons Extracted from Photoexcited GaAs Tip Reviewed

M. Kuwahara, T. Nakanishi, S. Okumi, M. Yamamoto, M. Miyamoto, N. Yamamoto, K. Yasui, T. Morino, R. Sakai, K. Tamagaki, K. Yamaguchi

Japanese Journal of Applied Physics Vol. 45 ( 8A ) page： 6245 2006

Highly polarized electrons from GaAs-GaAsP and InGaAs-AlGaAs strained superlattice photocathode Reviewed

T. Nishitani, T. Nakanishi, M. Yamamoto, S. Okumi, F. Furuta, M. Miyamoto, M. Kuwahara, N. Yamamoto, K. Naniwa, O. Watanabe, Y. Takeda, H. Kobayakawa, Y. Takashima, H. Horinaka, T. Matsuyama, K. Togawa, T. Saka, M. Tawada, T. Omori, Y. Kurihara, M. Yoshioka, K. Kato and T. Baba

Journal of Applied Physics Vol. 97 page： 094907 1-6 2005

Properties of Field Emission Dark Current from Molybdenum and Titanium Electrodes Reviewed

F. Furuta, M. Yamamoto, T. Nakanishi, S. Okumi, T. Gotoh, M. Miyamoto, M. Kuwahara, N. Yamamoto, K. Naniwa, K. Yasui, H. Matsumoto, M. Yoshioka and K. Togawa

Proceedings of 16th International Spin Physics Symposium (SPIN2004) and Workshop on Polarized Electron Sources and Polarimeters (PESP2004) page： 964 2005

Recent PES Photocathode R&D at Nagoya University Reviewed

M. Kuwahara, T. Nakanishi, S. Okumi, M. Yamamoto, F. Furuta, M. Miyamoto, N. Yamamoto, K. Naniwa, K. Yasui. T. Nishitani, O. Watanabe, Y. Takeda, H. Kobayakawa, Y. Takashima and K. Togawa

Proceedings of 16th International Spin Physics Symposium (SPIN2004) and Workshop on Polarized Electron Sources and Polarimeters (PESP2004) page： 953 2005

Present Status of 200 keV Polarized Electron Gun at Nagoya University Reviewed

M. Yamamoto, N. Yamamoto, T. Nishitani, S. Okumi, F. Furuta, M. Miyamoto, M. Kuwahara, K. Naniwa and K. Yasui

Proceedings of 16th International Spin Physics Symposium (SPIN2004) and Workshop on Polarized Electron Sources and Polarimeters (PESP2004) page： 902 2005

Reduction of field emission dark current for high-field gradient electron gun by using a molybdenum cathode and titanium anode Reviewed

F. Furuta, T. Nakanishi, S. Okumi, T. Gotou, M. Yamamoto, M. Miyamoto, M. Kuwahara, N. Yamamoto, K. Naniwa, K. Yasui, H. Matsumoto, M. Yoshioka and K. Togawa

Nuclear Instruments and Methods in Physics Research Section A Vol. 538 page： 33 2005

Highly Polarized Electrons from GaAs-GaAsP and InGaAs-AlGaAs Strained Layer Superlattice Photocathodes

T. Nakanishi, T. Nishitani, M. Yamamoto, S. Okumi, F. Furuta, M. Kuwahara, N. Yamamoto, K. Naniwa, K. Yasui, O. Watanabe, Y. Takeda, H. Kobayakawa, Y. Takashima, H. Horinaka and T. Matsuyama

Proceedings of XXII International Linear Accelerator Conference (LINAC2004) page： 648 2004

An Electrode with Molybdenum-Cathode and Titanium-Anode to Minimize Field Emission Dark Currents

T. Nakanishi, F. Furuta, S. Okumi, T. Gotou, M. Yamamoto, M. Kuwahara, N. Yamamoto, K. Naniwa, K. Yasui, H. Kobayakawa, Y. Takashima, H. Matsumoto, M. Yoshioka and K. Togawa

Proceedings of XXII International Linear Accelerator Conference (LINAC2004) page： 645 2004

Ultra-High-Vacuum Problem for 200 keV Polarized Electron Gun with NEA-GaAs Photocathode

T. Nakanishi, M. Yamamoto, N. Yamamoto, S. Okumi, F. Furuta, M. Kuwahara, K. Naniwa, K. Yasui, H. Kobayakawa, Y. Takashima, H. Matsumoto, M. Kuriki and M. Yoshioka

Proceedings of XXII International Linear Accelerator Conference (LINAC2004) page： 201 2004

Basic R&D Studies for Lower Emittance Polarized Electron Guns Reviewed

C. Suzuki, T. Nakanishi, S. Okumi, F. Furuta, K. Wada, T. Nishitani, M. Yamamoto, M. Kuwahara, T. Hirose, R. Mizuno, N. Yamamoto, H. Matsumoto, M. Yoshioka, H. Horinaka, K. Wada, T. Matsuyama and H. Kobayakawa

Proceedings of 15th International Spin Physics Symposium (SPIN2002) and Workshop on Polarized Electron Sources and Polarimeters (PESP2002) published in AIP Conference Proceedings Vol. 675 page： 1068 2003

200 keV Polarized Electron Source at Nagoya University Reviewed

K. Wada, M. Yamamoto, T. Nakanishi, S. Okumi, T. Gotoh, C. Suzuki, F. Furuta, T. Nishitani, M. Miyamoto, M. Kuwahara, T. Hirose, R. Mizuno, N. Yamamoto, H. Matsumoto and M. Yoshioka

Emittance measurement for 200-keV-electron beam extracted from NEA-GaAs photocathode using a pepper pot method Reviewed

N. Yamamoto, M. Yamamoto, T. Nakanishi, S. Okumi, F. Furuta, T. Nishitani, M. Miyamoto, M. Kuwahara, K. Naniwa, Y. Takashima, H. Kobayakawa, M. Kuriki, H. Matsumoto, and M. Yoshioka

FREE ELECTRON LASERS 2003 Vol. II page： 51 2003

A 200keV gun with NEA-GaAs photocathode to produce low emittance electron beam

M. Yamamoto, K. Wada, N. Yamamoto, T. Nakanishi, S. Okumi, F. Furuta, T. Nishitani, M. Miyamoto, M. Kuwahara, K. Naniwa, Y. Takashima, H. Kobayakawa, M. Kuriki, H. Matsumoto, and M. Yoshioka

FREE ELECTRON LASERS 2003 Vol. II page： 39-40 2003

Measurement of Field Emission Dark Current from the Titanium, Copper, and Stainless Steel Electrodes under the High DC-Field Gradient Condition

F. Furuta, C. Suzuki, T. Nakanishi, S. Okumi, T. Gotou, K. Wada, M. Yamamoto, T. Nishitani, M. Miyamoto, M. Kuwahara, T. Hirose, R. Mizuno, N. Yamamoto, H. Kobayakawa, H. Matsumoto and M. Yoshioka

Proceedings of XXI International LINAC Conference (LINAC2002) page： 431 2002

Charge limitation effects in photoemission from GaAsP strained layer cathode

A Subashiev, Yu Mamaev, B. Reznikov, T. Nakanishi, K. Togawa, T. Nishitani, M. Kuwahara, T. Hirose, R. Mizuno

Proceedings of the Ninth International Workshop Polarized Sources and Targets page： 175 2002

200keV Polarized Electron Source for Linear Collider

M. Yamamoto, K. Wada, T. Nakanishi, S. Okumi, C. Suzuki, F. Furuta, T. Nishitani, M. Miyamoto, M. Kuwahara, T. Hirose, R. Mizuno, N. Yamamoto, O. Watanabe, H. Kobayakawa, H. Matsumoto and M. Yoshioka

Proceedings of XXI International LINAC Conference (LINAC2002) page： 680 2002

Test of Cesium Telluride Photocathode as a Feasibility Study on Polarized RF-gun Reviewed

F. Furuta, H. Sugiyama, T. Nakanishi, S. Okumi, K. Togawa, C. Suzuki, K. Wada, M. Yamamoto, T. Nishitani, J. Watanabe, S. Kurahashi, M. Miyamoto, M. Kuwahara, R. Mizuno, T. Hirose, K. Kimura, H. Kobayakawa, Y. Takashima, M. Yoshioka and H. Matsumoto

Proceedings of 14th International Spin Physics Symposium (SPIN2000) and Workshop on Polarized Electron Sources and Polarimeters (PES2000) published in AIP Conference Proceedings Vol. 570 page： 1015 2001

　 PREV - NEXT 　

<KUWAHARA, Makoto>

Papers - KUWAHARA, Makoto