Generation of hard x rays by femtosecond laser pulse interaction with solid targets in atmosphere
X ray radiation as high as 50 keV, including K(α) of Ba and Mo, have been observed from a solid target during the interaction of low energy ~0.65 mJ, 1 kHz 40 femtosecond laser pulses focused in air at atmospheric pressure. Energetic electrons generating such x rays are possibly produced when the fi...
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| Veröffentlicht in: | Optics letters 2012-03, Vol.37 (5), p.884-886 |
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| container_issue | 5 |
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| container_title | Optics letters |
| container_volume | 37 |
| creator | Zhidkov, Alexey G Pikuz, Jr, Sergey A Faenov, Anatoly Ya Chefonov, Oleg V Ovchinnikov, Andrey V Agranat, Mikhail B Zigler, Arie |
| description | X ray radiation as high as 50 keV, including K(α) of Ba and Mo, have been observed from a solid target during the interaction of low energy ~0.65 mJ, 1 kHz 40 femtosecond laser pulses focused in air at atmospheric pressure. Energetic electrons generating such x rays are possibly produced when the field strength in laser pulse wake exceeds the runaway threshold in air. Two dimensional particle-in-cell simulations that include optical field ionization of air and elastic collisions support this mechanism. |
| doi_str_mv | 10.1364/OL.37.000884 |
| format | Article |
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Energetic electrons generating such x rays are possibly produced when the field strength in laser pulse wake exceeds the runaway threshold in air. 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| identifier | ISSN: 0146-9592 |
| ispartof | Optics letters, 2012-03, Vol.37 (5), p.884-886 |
| issn | 0146-9592 1539-4794 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_926150976 |
| source | Optica Publishing Group Journals |
| subjects | Barometric pressure Femtosecond Field strength Lasers Particle in cell technique Simulation Wakes X rays |
| title | Generation of hard x rays by femtosecond laser pulse interaction with solid targets in atmosphere |
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