NDLI: Nonequilibrium effect for shot noise in ultrafast laser-induced electron emission

Content Provider	IEEE Xplore Digital Library
Author	Zhu, Y.B. Ang, L.K.
Copyright Year	2013
Description	Author affiliation: Sch. of Electr. & Electron. Eng., Na nyang Technol. Univ., Singapore, Singapore (Ang, L.K.) \|\| Eng. Product Dev., Singapore Univ. of Technol. & Design, Singapore, Singapore (Zhu, Y.B.)
Abstract	Summary form only given. Shot noise is the fluctuation in the electrical signal due to the discreteness of electron $charges^{1}.$ 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 $pulses^{2}.$ A nonequilibrium model based on Boltzmann's equation has been used to explain the electron emission $process^{3}.$ 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 $interaction^{4}.$ Our result would be helpful for investigate the coherence properties of ultrafast electron sources.
Starting Page	1
Ending Page	1
File Size	121026
Page Count	1
File Format	PDF
ISBN	9781467351713
ISSN	07309244
DOI	10.1109/PLASMA.2013.6634953
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-06-16
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Laser noise Educational institutions Laser modes Electron emission Coherence Mathematical model
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Condensed Matter Physics Electrical and Electronic Engineering

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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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