Generation of high-order harmonics with tunable photon energy and spectral width using double pulses
This work theoretically investigates high-order harmonic generation in rare-gas atoms driven by two temporally delayed ultrashort laser pulses. Apart from their temporal delay, the two pulses are identical. Using a single-atom model of the laser-matter interaction it is shown that the photon energy...
Elmentve itt :
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| Dokumentumtípus: | Cikk |
| Megjelent: |
2020
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| Sorozat: | PHYSICAL REVIEW A
102 No. 1 |
| doi: | 10.1103/PhysRevA.102.013504 |
| mtmt: | 31488077 |
| Online Access: | http://publicatio.bibl.u-szeged.hu/19514 |
| Tartalmi kivonat: | This work theoretically investigates high-order harmonic generation in rare-gas atoms driven by two temporally delayed ultrashort laser pulses. Apart from their temporal delay, the two pulses are identical. Using a single-atom model of the laser-matter interaction it is shown that the photon energy of the generated harmonics is controllable within the range of one eV-a bandwidth comparable to the photon energy of the fundamental field-by varying the time delay between the generating laser pulses. It is also demonstrated that high-order harmonics generated by double pulses have advantageous characteristics, which mimick certain properties of an extreme ultraviolet monochromator. With the proposed method, a simpler setup at a much lower cost and comparatively higher spectral yield can be implemented in contrast to other approaches. |
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| Terjedelem/Fizikai jellemzők: | Azonosító: 013504-Terjedelem: 6 p |
| ISSN: | 1050-2947 |