Objective
Nonlinear optics revolutionized the ability to create directed, coherent beams particularly in spectral regions where lasers based on conventional population inversion are not practical. New breakthroughs in extreme nonlinear optics promise a similar revolution in the X-ray regime. In a dramatic and unanticipated breakthrough, an international team lead by the PI demonstrated that the high harmonic generation process (HHG) driven by mid-IR lasers can be used to generate keV photons, implementing a >5000 order nonlinear process, while still maintaining the full phase matching that is necessary for good conversion efficiency. This work represents the most extreme, fully coherent upconversion for electromagnetic waves in the 50 year history of nonlinear optics. Moreover, the limits of HHG are still not understood, either theoretically or experimentally. It may be possible to generate coherent hard X-rays using a tabletop-scale apparatus.
In another surprising breakthrough, the PI showed that UV-driven HHG in multiply ionized plasma can be also highly efficient, representing a 2nd route towards the X-ray region. Remarkably, this regime provides X-rays with contrasting spectral and temporal properties. Furthermore, by shaping the polarization of a bi-color mid-IR driving laser the PI, the JILA team in collaboration with Technion, demonstrated robust phase matching of circularly polarized soft X-rays.
In the proposed work, the fundamental atomic, phase matching plus group velocity matching limits of HHG in the multi-keV X-ray regime will be explored using the 3 most promising, complimentary approaches: 1) mid-IR driven HHG, 2) UV driven HHG, and 3) all-optical quasi phase matching. The knowledge gained as a result of this effort will identify the best path forward for generating bright coherent X-ray beams on a tabletop, at photon energies of 1-10 keV and greater with unprecedented attosecond-to-zeptosecond pulse durations, and arbitrary polarization state.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- social sciences political sciences political transitions revolutions
- humanities arts modern and contemporary art cinematography
- natural sciences physical sciences optics nonlinear optics
- natural sciences physical sciences optics laser physics
- natural sciences physical sciences theoretical physics particle physics photons
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Keywords
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Programme(s)
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Multi-annual funding programmes that define the EU’s priorities for research and innovation.
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H2020-EU.1.1. - EXCELLENT SCIENCE - European Research Council (ERC)
MAIN PROGRAMME
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Topic(s)
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Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Funding Scheme
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Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
ERC-STG - Starting Grant
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Call for proposal
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Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
(opens in new window) ERC-2016-STG
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1040 Wien
Austria
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