Author

Shoji Okumi

Observed names: S Okumi, S. OKUMI, S. Okumi

Observed institutions: Hiroshima University, Japan Atomic Energy Agency, High Energy Accelerator Research Organization, Osaka Electro-Communication University, University of Electro-Communications, Daido Steel (Japan), Nagoya University, Hitachi (Japan)

OpenAlex ID: A5111748421

Highly polarized electrons from GaAs–GaAsP and InGaAs–AlGaAs strained-layer superlattice photocathodes

2005 · T. Nishitani, T. Nakanishi, et al. · Journal of Applied Physics · 82

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Super-High Brightness and High-Spin-Polarization Photocathode

2008 · Xiuguang Jin, Naoto Yamamoto, et al. · Applied Physics Express · 76

Surface charge limit in NEA superlattice photocathodes of polarized electron source

1998 · K Togawa, T Nakanishi, et al. · Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment · 67

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

2008 · Naoto Yamamoto, Tsutomu Nakanishi, et al. · Journal of Applied Physics · 61

Real Time Magnetic Imaging by Spin-Polarized Low Energy Electron Microscopy with Highly Spin-Polarized and High Brightness Electron Gun

2010 · Masahiko Suzuki, Michihiro Hashimoto, et al. · Applied Physics Express · 52

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

2004 · F. Furuta, T. Nakanishi, et al. · Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment · 43

ILC Reference Design Report: ILC Global Design Effort and World Wide Study

2007 · J. E. Brau, T. Mimashi, et al. · (2007) · 40

Strain dependence of spin polarization of photoelectrons from a thin GaAs layer

1992 · H. Aoyagi, H. Horinaka, et al. · Physics Letters A · 32

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

2010 · Ryoji Nagai, Ryoichi Hajima, et al. · Review of Scientific Instruments · 31

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Highly spin-polarized electron photocathode based on GaAs–GaAsP superlattice grown on mosaic-structured buffer layer

2008 · Xiuguang Jin, Yuya Maeda, et al. · Journal of Crystal Growth · 27

Highly Polarized Electron Source Using InGaAs–GaAs Strained-Layer Superlattice

1994 · Tsunehiko Omori, Yoshimasa Kurihara, et al. · Japanese Journal of Applied Physics · 27

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Spin-polarized electron sources with GaAs–GaAsP superlattices for surface analyses

2000 · T Saka, T Kato, et al. · Surface Science · 25

New-Type Photocathode for Polarized Electron Source with Distributed Bragg Reflector

1993 · Takashi Saka, Toshihiro Kato, et al. · Japanese Journal of Applied Physics · 25

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Fabrication of ultra-clean copper surface to minimize field emission dark currents

2001 · C Suzuki, T Nakanishi, et al. · Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment · 24

Acceleration of polarized electrons in ELSA

1998 · S. Nakamura, W.v. Drachenfels, et al. · Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment · 20

Construction of GaAs Spin-Polarized Electron Source and Measurements of Electron Polarization

1986 · Tsutomu Nakanishi, Kazuhiko Dohmae, et al. · Japanese Journal of Applied Physics · 20

Polarized electron source for a linear collider in Japan

2000 · T Nakanishi, K Togawa, et al. · Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment · 15

Spin-Dependent Luminescence of Highly Polarized Electrons Generated by Two-Photon Absorption in Semiconductors

2001 · Tetsuya Matsuyama, Hiromichi Horinaka, et al. · Japanese Journal of Applied Physics · 14

Spin Relaxation of Electrons in Strained-GaAs-Layer Photocathode of Polarized Electron Source

1995 · Hiromichi Horinaka, Daisaku Ono, et al. · Japanese Journal of Applied Physics · 14

Production of polarized electron beam with sub-nanosecond multi-bunch structure from superlattice photocathode

2000 · K Togawa, T Nakanishi, et al. · Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment · 13

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

2006 · Makoto Kuwahara, Tsutomu Nakanishi, et al. · Japanese Journal of Applied Physics · 11

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Highly polarized electrons from superlattice photocathodes

1998 · T. Nakanishi, S. Okumi, et al. · AIP conference proceedings · 11

Development of a 500-kV Photocathode DC Gun for ERLS

2011 · N Nishimori, R Nagai, et al. · Journal of Physics Conference Series · 10

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High Spin Polarization of Conduction Band Electrons in GaAs-GaAsP Strained Layer Superlattice Fabricated as a Spin-Polarized Electron Source

2004 · Tetsuya Matsuyama, Hisaya Takikita, et al. · Japanese Journal of Applied Physics · 7

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Development of an electron gun for an ERL based light source in Japan