Faculty Profiles - KUWAHARA, Makoto

Papers - KUWAHARA, Makoto

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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

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Papers - KUWAHARA, Makoto