Extended model for optimizing high-order harmonic generation in absorbing gases
We report on an extended version of the one-dimensional model proposed by Constant et al (1999 Phys. Rev. Lett. 82 1668) to study phase matching of high-order harmonic generation in absorbing and dispersive medium. The model-expanded from zeroth to first order-can be used with media having a pressur...
Elmentve itt :
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| Dokumentumtípus: | Cikk |
| Megjelent: |
2021
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| Sorozat: | JOURNAL OF PHYSICS B: ATOMIC MOLECULAR AND OPTICAL PHYSICS
54 No. 22 |
| Tárgyszavak: | |
| doi: | 10.1088/1361-6455/ac3fbe |
| mtmt: | 32786282 |
| Online Access: | http://publicatio.bibl.u-szeged.hu/24177 |
| Tartalmi kivonat: | We report on an extended version of the one-dimensional model proposed by Constant et al (1999 Phys. Rev. Lett. 82 1668) to study phase matching of high-order harmonic generation in absorbing and dispersive medium. The model-expanded from zeroth to first order-can be used with media having a pressure profile varying linearly with propagation length. Based on the new formulas, the importance of having a generation medium that ends abruptly with a steep pressure gradient for achieving high flux is highlighted. In addition to further rule-of-thumb guidelines for harmonic-flux optimization, it is shown that having a steep increase of pressure in the beginning of the medium increases harmonic flux, while it also decreases the required medium length to reach the absorption-limited maximum. |
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| Terjedelem/Fizikai jellemzők: | Terjedelem: 11-Azonosító: 224002 |
| ISSN: | 0953-4075 |