Opendata, web and dolomites


X-ray-waveforms at the Space-Time Resolution Extreme for Atomic-scale Movies

Total Cost €


EC-Contrib. €






 XSTREAM project word cloud

Explore the words cloud of the XSTREAM project. It provides you a very rough idea of what is the project "XSTREAM" about.

inversion    regions    kev    population    generate    bright    energies    lasers    generation    directed    attosecond    beams    revolution    complimentary    representing    ray    arbitrary    color    ionized    international    full    plasma    5000    maintaining    contrasting    optical    promise    quasi    jila    demonstrated    waves    matching    plus    history    experimentally    laser    good    driving    efficient    uv    durations    limits    conventional    circularly    rays    coherent    gained    effort    unprecedented    breakthroughs    practical    shaping    hhg    optics    tabletop    temporal    create    atomic    provides    velocity    extreme    photons    remarkably    surprising    gt    unanticipated    efficiency    generating    showed    bi    pulse    electromagnetic    pi    mid    harmonic    ir    region    breakthrough    upconversion    soft    spectral    nonlinear    regime    revolutionized    fundamental    implementing    polarized    either    photon    technion    zeptosecond    hard    team    2nd    explored    dramatic    apparatus    route    multiply    group    polarization    conversion   

Project "XSTREAM" data sheet

The following table provides information about the project.


Organization address
address: KARLSPLATZ 13
city: WIEN
postcode: 1040

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Austria [AT]
 Total cost 1˙513˙335 €
 EC max contribution 1˙513˙335 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2016-STG
 Funding Scheme ERC-STG
 Starting year 2017
 Duration (year-month-day) from 2017-08-01   to  2022-07-31


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    TECHNISCHE UNIVERSITAET WIEN AT (WIEN) coordinator 1˙513˙335.00


 Project 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.


year authors and title journal last update
List of publications.
2018 Xiaohui Gao, Gauri Patwardhan, Bonggu Shim, Tenio Popmintchev, Henry C. Kapteyn, Margaret M. Murnane, Alexander L. Gaeta
Ionization-assisted spatiotemporal localization in gas-filled capillaries
published pages: 3112, ISSN: 0146-9592, DOI: 10.1364/ol.43.003112
Optics Letters 43/13 2019-11-28

Are you the coordinator (or a participant) of this project? Plaese send me more information about the "XSTREAM" project.

For instance: the website url (it has not provided by EU-opendata yet), the logo, a more detailed description of the project (in plain text as a rtf file or a word file), some pictures (as picture files, not embedded into any word file), twitter account, linkedin page, etc.

Send me an  email ( and I put them in your project's page as son as possible.

Thanks. And then put a link of this page into your project's website.

The information about "XSTREAM" are provided by the European Opendata Portal: CORDIS opendata.

More projects from the same programme (H2020-EU.1.1.)


The Enemy of the Good: Towards a Theory of Moral Progress

Read More  

VictPart (2019)

Righting Victim Participation in Transitional Justice

Read More  


The Mass Politics of Disintegration

Read More