Abstract
We report on simultaneous effciency and divergence measurements for harmonics from solid targets generated by the relativistic oscillating mirror mechanism. For a value of the normalized vector potential of al — 1.5, we demonstrate the generation of 30 (jJ high-harmonic radiation in a 17 ± 3 mrad divergence cone. This corresponds to a conversion effciency of >10~4 in the 17-80 nm range into a well-confned beam. Presuming phase-locked harmonics, our results predict unprecedented levels of average power for a single attosecond pulse in the generated pulse train. Results of PIC simulations raise the prospect of attaining effciencies of a few percent at higher laser intensities.
Original language | English (US) |
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Pages (from-to) | 195-201 |
Number of pages | 7 |
Journal | Applied Physics B: Lasers and Optics |
Volume | 118 |
Issue number | 2 |
DOIs | |
State | Published - Dec 3 2015 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)
- General Physics and Astronomy