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Journal Articles Optics Letters Year : 2010

High-order harmonic generation from solid targets with 2 mJ pulses

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Abstract

Harmonics up to the 18th order are generated from solid targets by focusing 2 mJ, 50 fs pulses at 800 nm to a spot size of 1:7 µm (FWHM). To our knowledge, this is the first demonstration of high-harmonic generation with a very short focal length paraboloid (f /1.4) and kilohertz laser system. The harmonics have a low divergence (<4°) compared to the driving beam and conversion efficiencies (>10-7 per harmonic) comparable to gas harmonics. No contrast enhancement techniques are employed, and the system is capable of operating at 500 Hz. © 2010 Optical Society of America.
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Dates and versions

hal-00838488 , version 1 (12-07-2013)

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James H. Easter, Aghapi G. Mordovanakis, Bixue Hou, Alexander G.R. Thomas, John A. Nees, et al.. High-order harmonic generation from solid targets with 2 mJ pulses. Optics Letters, 2010, 35 (19), pp.3186-3188. ⟨10.1364/ol.35.003186⟩. ⟨hal-00838488⟩
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