Enhanced high-order-harmonic generation in a carbon ablation plume

R. A. Ganeev, T. Witting, C. Hutchison, F. Frank, P. V. Redkin, W. A. Okell, D. Y. Lei, T. Roschuk, S. A. Maier, J. P. Marangos, and J. W. G. Tisch
Phys. Rev. A 85, 015807 – Published 26 January 2012

Abstract

We report on the observation of enhanced high harmonics from a carbon plasma using sub-5-fs laser pulses. The efficiency of harmonic generation in the range of 14–25 eV was up to five times higher in the case of a plasma medium (graphite ablation) compared with gas (argon) under similar experimental conditions. The harmonic enhancement can be attributed to the presence of carbon nanoparticles in the ablation plumes.

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  • Received 29 September 2011

DOI:https://doi.org/10.1103/PhysRevA.85.015807

©2012 American Physical Society

Authors & Affiliations

R. A. Ganeev1,2,*, T. Witting1, C. Hutchison1, F. Frank1, P. V. Redkin3, W. A. Okell1, D. Y. Lei1, T. Roschuk1, S. A. Maier1, J. P. Marangos1, and J. W. G. Tisch1

  • 1Blackett Laboratory, Imperial College London, Prince Consort Road, London SW7 2AZ, United Kingdom
  • 2Institute of Electronics, 33, Dormon Yoli Street, Tashkent 100125, Uzbekistan
  • 3Samarkand State University, Samarkand 140104, Uzbekistan

  • *rashid_ganeev@mail.ru

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Vol. 85, Iss. 1 — January 2012

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