| Autor: |
Ganeev RA; Blackett Laboratory, Imperial College London, London SW7 2BW, UK. rashid_ganeev@mail.ru, Hutchison C, Zaïr A, Witting T, Frank F, Okell WA, Tisch JW, Marangos JP |
| Jazyk: |
angličtina |
| Zdroj: |
Optics express [Opt Express] 2012 Jan 02; Vol. 20 (1), pp. 90-100. |
| DOI: |
10.1364/OE.20.000090 |
| Abstrakt: |
We have investigated resonance effects in high-order harmonic generation (HHG) within laser-produced plasmas. We demonstrate a significantly improved harmonic yield by using two-color pump-induced enhancement and a 1 kHz pulse repetition rate. Together with an increased HHG output, the even harmonics in the cutoff region were enhanced with respect to odd harmonics. We report the observation of a resonance-induced growth in intensity of 20th harmonic in silver plasma (2×), 26th harmonic in vanadium plasma (4×), and 28th harmonic in chromium plasma (5×). |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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