Electron emission from atomic clusters irradiated with few cycle laser pulses

El-Taha, Y. C.; Springate, E.; Carley, Robert; Rajgara, F. A.; Darios, D.; Froud, C. A.; Bonora, Stefano; Symes, D. R.; Tisch, J. W. G.; Smith, R. A.; Mathur, D.; Marangos, Jonathan P.

doi:10.1109/cleo.2008.4552193

Cited by 1 publication

(1 citation statement)

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“…The emission of photoelectrons from cluster nanoplasmas in intense few-cycle pulse interactions is an aspect of the dynamics complimentary to photoion generation. El-Taha et al 60 measured photoelectron emission from Xe clusters with a time-delayed pair of B11 fs pulses and intensity fractions of 0.3 and 0.7 for the first (leading) and second (probe) pulses respectively. The measured electron yields showed a characteristic pump-probe dependence on a ps-timescale.…”

Section: Photoelectron Emissionmentioning

confidence: 99%

Photoionization of clusters in intense few-cycle near infrared femtosecond pulses

Krishnan

Gopal

Rajeev

et al. 2014

Phys. Chem. Chem. Phys.

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In this article we present a perspective on the current state of the art in the photoionization of atomic clusters in few-cycle near-infrared laser pulses. Recently, several studies have reported intriguing phenomena associated with the photoionization of clusters by pulses as short as ~10 fs which approach the natural timescales of collective electronic motion in such nanoscale aggregates. In contrast to the dynamics occurring on few- and sub-picosecond timescales where ionic motion sets in and plays a key role marked by resonant plasmon oscillations, the few-cycle limit precludes cluster expansion due to the nuclear motion of ionic constituents. Thus, pulses lasting just a few optical cycles explore a new "impulsive" regime for the first time in cluster nanoplasmas wherein ions essentially remain "frozen". Along with the perspective on this new regime, we present first measurements of photoelectron distributions and temperatures.

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Section: Photoelectron Emissionmentioning

confidence: 99%