High-order-harmonic generation driven by metal nanotip photoemission: Theory and simulations

M. F. Ciappina; J. A. Pérez-Hernández; T. Shaaran; M. Lewenstein; M. Krüger; P. Hommelhoff

doi:10.1103/PhysRevA.89.013409

High-order-harmonic generation driven by metal nanotip photoemission: Theory and simulations

M. F. Ciappina^*, J. A. Pérez-Hernández, T. Shaaran, M. Lewenstein, M. Krüger, P. Hommelhoff

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

We present theoretical predictions of high-order-harmonic generation resulting from the interaction of short femtosecond laser pulses with metal nanotips. It is demonstrated that high-energy electrons can be generated using nanotips as sources; furthermore, the recollision mechanism is proven to be intrinsically linked to this high-energy tail. If recollision exists, it should be possible to convert the energy gained by the electron in the continuum in a high-energy photon. Consequently, the emission of harmonic radiation appears to be viable. We employ a quantum mechanical time-dependent approach to model the electron dipole moment including both the laser experimental conditions and the bulk matter properties. The use of metal tips should provide an alternative way of generating coherent XUV light with a femtosecond laser field.

Original language	English
Article number	013409
Journal	Physical Review A - Atomic, Molecular, and Optical Physics
Volume	89
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevA.89.013409
State	Published - 15 Jan 2014
Externally published	Yes

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title = "High-order-harmonic generation driven by metal nanotip photoemission: Theory and simulations",

abstract = "We present theoretical predictions of high-order-harmonic generation resulting from the interaction of short femtosecond laser pulses with metal nanotips. It is demonstrated that high-energy electrons can be generated using nanotips as sources; furthermore, the recollision mechanism is proven to be intrinsically linked to this high-energy tail. If recollision exists, it should be possible to convert the energy gained by the electron in the continuum in a high-energy photon. Consequently, the emission of harmonic radiation appears to be viable. We employ a quantum mechanical time-dependent approach to model the electron dipole moment including both the laser experimental conditions and the bulk matter properties. The use of metal tips should provide an alternative way of generating coherent XUV light with a femtosecond laser field.",

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T1 - High-order-harmonic generation driven by metal nanotip photoemission

T2 - Theory and simulations

AU - Ciappina, M. F.

AU - Pérez-Hernández, J. A.

AU - Shaaran, T.

AU - Lewenstein, M.

AU - Krüger, M.

AU - Hommelhoff, P.

PY - 2014/1/15

Y1 - 2014/1/15

N2 - We present theoretical predictions of high-order-harmonic generation resulting from the interaction of short femtosecond laser pulses with metal nanotips. It is demonstrated that high-energy electrons can be generated using nanotips as sources; furthermore, the recollision mechanism is proven to be intrinsically linked to this high-energy tail. If recollision exists, it should be possible to convert the energy gained by the electron in the continuum in a high-energy photon. Consequently, the emission of harmonic radiation appears to be viable. We employ a quantum mechanical time-dependent approach to model the electron dipole moment including both the laser experimental conditions and the bulk matter properties. The use of metal tips should provide an alternative way of generating coherent XUV light with a femtosecond laser field.

AB - We present theoretical predictions of high-order-harmonic generation resulting from the interaction of short femtosecond laser pulses with metal nanotips. It is demonstrated that high-energy electrons can be generated using nanotips as sources; furthermore, the recollision mechanism is proven to be intrinsically linked to this high-energy tail. If recollision exists, it should be possible to convert the energy gained by the electron in the continuum in a high-energy photon. Consequently, the emission of harmonic radiation appears to be viable. We employ a quantum mechanical time-dependent approach to model the electron dipole moment including both the laser experimental conditions and the bulk matter properties. The use of metal tips should provide an alternative way of generating coherent XUV light with a femtosecond laser field.

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High-order-harmonic generation driven by metal nanotip photoemission: Theory and simulations

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