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Title: Generalized model for ultrafast laser induced electron emission from a metal tip
Authors: Ang, Ricky Lay Kee
Pant, M.
Keywords: DRNTU::Engineering::Electrical and electronic engineering
Issue Date: 2013
Source: Ang, L. K. R., & Pant, M. (2013). Generalized model for ultrafast laser induced electron emission from a metal tip. Physics of plasmas, 20(5), 056705-.
Series/Report no.: Physics of plasmas
Abstract: In this paper, we will present a brief review of the recently developed non-equilibrium heating and time dependent tunneling model to study the dynamic processes in using an ultrafast laser to induce electron emission from a metallic tip ranging from the multiphoton to the optical tunneling regime. Due to the short time scale of the ultrafast laser pulse, the lattice is found to be in a non-equilibrium condition and a single temperature model is no longer valid. The ultrafast laser heating enhances the electron emission through both the multiphoton and optical tunneling processes rather than over-barrier emission due to thermal heating. The paper is focused on the methodology of how these two effects (non-equilibrium heating and time-dependent tunneling) are combined in a self-consistent model. The model shows a smooth transition of the emitted charge as a function of laser field, ranging from the multiphoton emission regime at low laser field to the optical tunneling regime at high laser field. The paper will conclude with some discussion of future work.
ISSN: 1070-664X
DOI: 10.1063/1.4803086
Rights: © 2013 AIP Publishing LLC. This paper was published in Physics of Plasmas and is made available as an electronic reprint (preprint) with permission of AIP Publishing LLC. The paper can be found at the following official DOI: []. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Fulltext Permission: open
Fulltext Availability: With Fulltext
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