High-Order Harmonic Generation in Laser Plasma:
Recent Achievements¹

R. A. Ganeev

Imperial College, Blackett Laboratory, Prince Consort Road, London SW7 2AZ, United Kingdom

Institute of Electronics, Akademgorodok, 33, Dormon Yoli Street, Tashkent 100125, Uzbekistan

e-mail: rashid_ganeev@mail.ru

Received August 11, 2011; published online June 12, 2012

Abstract—Recent studies of high-order harmonic generation of laser radiation in laser-produced plasma show
new attractive developments in this field. Those include generation of extended harmonics in plasma plumes,
new approaches in application of two-color pump, generation of extremely broadened harmonics, further devel-
opments in harmonic generation in clusters (fullerenes, carbon nanotubes, in-situ produced nanoparticles),
destructive interference of harmonics from different emitters, resonance-induced enhancement of harmonics,
applications of high pulse repetition rate lasers for the enhancement of average power of generating harmonics,
observation of quantum path signatures, etc. We review some of these recent developments.

10.1134/S1054660X12070031

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