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. Fields of science natural sciencesphysical sciencesopticsnonlinear opticsnatural sciencesphysical sciencesopticslaser physicsnatural sciencesphysical sciencestheoretical physicsparticle physicsphotons Programme(s) FP7-PEOPLE - Specific programme "People" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013) Topic(s) PEOPLE-2007-4-2.IIF - Marie Curie Action: "International Incoming Fellowships" Call for proposal FP7-PEOPLE-2007-4-2-IIF See other projects for this call Funding Scheme MC-IIFR - International incoming fellowships (Return phase) Coordinator Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences Address 390,qinghe road, jiading district 201800 Shanghai China See on map Activity type Private for-profit entities (excluding Higher or Secondary Education Establishments) Administrative Contact Ruxin Li (Prof.) Links Contact the organisation Opens in new window Website Opens in new window EU contribution No data
