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- W2073670283 abstract "Summary form only given. Shot noise is the fluctuation in the electrical signal due to the discreteness of electron charges <sup xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>1</sup> . The deviation of the uncorrelated shot noise is normally given by the Fano factor. Ultrafast electron pulse with high rightness and coherence can be generated by illumination of a dc-based metallic field emitter with femtosecond laser pulses <sup xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>2</sup> . A nonequilibrium model based on Boltzmann's equation has been used to explain the electron emission process <sup xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>3</sup> . Based on this model, the shot noise of the emission current is calculated. The effects of the shot noise reduction on applied dc voltage, laser intensity, pulse duration and metal work function are investigated. It is found that the Fano factor increases with small applied dc voltage, large laser field and longer time of tip and pulse interaction <sup xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>4</sup> . Our result would be helpful for investigate the coherence properties of ultrafast electron sources." @default.
- W2073670283 created "2016-06-24" @default.
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- W2073670283 date "2013-06-01" @default.
- W2073670283 modified "2023-09-25" @default.
- W2073670283 title "Nonequilibrium effect for shot noise in ultrafast laser-induced electron emission" @default.
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- W2073670283 doi "https://doi.org/10.1109/plasma.2013.6634953" @default.
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