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

Ciappina MF, Perez-Hernandez JA, Shaaran T, Lewenstein M, Krüger M, Hommelhoff P (2014)


Publication Type: Journal article

Publication year: 2014

Journal

Publisher: American Physical Society

Book Volume: 89

Pages Range: 013409

URI: http://pra.aps.org/abstract/PRA/v89/i1/e013409

DOI: 10.1103/PhysRevA.89.013409

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. © 2014 American Physical Society.

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APA:

Ciappina, M.F., Perez-Hernandez, J.A., Shaaran, T., Lewenstein, M., Krüger, M., & Hommelhoff, P. (2014). High-order harmonic generation driven by metal nanotip photoemission: theory and simulations. Physical Review A, 89, 013409. https://doi.org/10.1103/PhysRevA.89.013409

MLA:

Ciappina, M. F., et al. "High-order harmonic generation driven by metal nanotip photoemission: theory and simulations." Physical Review A 89 (2014): 013409.

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