OHIO · Optimization and application of Intense High-Order harmonics
FP7 — People (Marie Curie Actions)
- Duration
- 2008-05-01 → 2010-04-30
- EU contribution
- €178,455
- Participants
- 1
- Scheme
- MC-IIF
Lines connect the coordinator with its partners.
Results in brief
Optimization and application of Intense High-Order harmonics
High-order harmonic generation (HHG) from the interaction of an intense laser field and a gas target is attracting a lot of attention, since it provides an interesting table-top coherent extreme ultraviolet (XUV) radiation source, and since it is becoming a reliable source with pulse duration in attosecond regime. However, one major problem is that the efficiency of HHG is extremely low, which limits its further application. To meet the demanding of different kinds of applications, the pulse energy needs to be improved, the beam properties need to be fully characterized and better controlled. The OHIO project was devoted to optimize this beam source and to explore some of its applications. More details are given in the publishable summary which is attached.
Data: CORDIS, © European Union
Project objective
High-order harmonic generation (HHG) as a relatively inexpensive and widely available alternative source in the x-ray region was discovered nearly 20 years ago. The physics is now well understood. Applications are emerging, e.g. in attosecond science. The main difficulty, however, remains the low conversion efficiency and the low number of photons available. Efforts must be undertaken to further increase the output energy of high-order harmonic. The main objective of this proposal is to optimize high order harmonic generation and to explore some of its applications. Single atom response and collective effects will be both considered for the optimization of high-order harmonic generation. The mixing of the fundamental laser with double frequencies and even with an attosecond pulse train will be used to enhance the single atom efficiency. The collective emission will be optimized by increasing the total radiation volume and by achieving phase-matching conditions in different spectral range, developing in particular, quasi-phase matching techniques with weak counter propagating beams. Three applications of intense high-order harmonics will be explored, time-resolved digital in-line holography, nonlinear optics in the extreme ultraviolet range and seeding for free-electron laser research.
Original text from CORDIS.
Participants
- MAX IV Laboratory, Lund University · LUNDCoordinatorSweden
Links
Data: CORDIS, © European Union