Weakly relativistic electron dynamics and efficient X-ray photon emission driven by an ultraintense extreme-ultraviolet laser field

2014 ◽  
Vol 195 ◽  
pp. 132-138 ◽  
Author(s):  
Ji-Cai Liu
Keyword(s):  
Relativistic Electron ◽  
Laser Field ◽  
Extreme Ultraviolet ◽  
Photon Emission ◽  
Electron Dynamics ◽  
Ultraviolet Laser ◽  
X Ray

scholarly journals High-Harmonic and Terahertz Spectroscopy (HATS): Methods and Applications

2019 ◽  
Vol 9 (5) ◽  
pp. 853 ◽  
Author(s):  
Yindong Huang ◽  
Chao Chang ◽  
Jianmin Yuan ◽  
Zengxiu Zhao
Keyword(s):  
Extreme Ultraviolet ◽  
Terahertz Spectroscopy ◽  
High Harmonic ◽  
Molecular Structures ◽  
Slow Electron ◽  
Electron Dynamics ◽  
Joint Measurement ◽  
X Ray ◽  
Millimeter Wavelength ◽  
High Harmonics

Electrons driven from atom or molecule by intense dual-color laser fields can coherently radiate high harmonics from extreme ultraviolet to soft X-ray, as well as an intense terahertz (THz) wave from millimeter to sub-millimeter wavelength. The joint measurement of high-harmonic and terahertz spectroscopy (HATS) was established and further developed as a unique tool for monitoring electron dynamics of argon from picoseconds to attoseconds and for studying the molecular structures of nitrogen. More insights on the rescattering process could be gained by correlating the fast and slow electron motions via observing and manipulating the HATS from atoms and molecules. We also propose the potential investigations of HATS of polar molecules, and solid and liquid sources.

scholarly journals Coherence tomography with broad bandwidth extreme ultraviolet and soft X-ray radiation

2021 ◽  
Vol 127 (4) ◽  
Author(s):  
S. Skruszewicz ◽  
S. Fuchs ◽  
J. J. Abel ◽  
J. Nathanael ◽  
J. Reinhard ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Near Infrared ◽  
Extreme Ultraviolet ◽  
Infrared Light ◽  
Imaging Method ◽  
Optical Coherence ◽  
Axial Resolution ◽  
Cross Sectional ◽  
X Ray ◽  
Broad Bandwidth

AbstractWe present an overview of recent results on optical coherence tomography with the use of extreme ultraviolet and soft X-ray radiation (XCT). XCT is a cross-sectional imaging method that has emerged as a derivative of optical coherence tomography (OCT). In contrast to OCT, which typically uses near-infrared light, XCT utilizes broad bandwidth extreme ultraviolet (XUV) and soft X-ray (SXR) radiation (Fuchs et al in Sci Rep 6:20658, 2016). As in OCT, XCT’s axial resolution only scales with the coherence length of the light source. Thus, an axial resolution down to the nanometer range can be achieved. This is an improvement of up to three orders of magnitude in comparison to OCT. XCT measures the reflected spectrum in a common-path interferometric setup to retrieve the axial structure of nanometer-sized samples. The technique has been demonstrated with broad bandwidth XUV/SXR radiation from synchrotron facilities and recently with compact laboratory-based laser-driven sources. Axial resolutions down to 2.2 nm have been achieved experimentally. XCT has potential applications in three-dimensional imaging of silicon-based semiconductors, lithography masks, and layered structures like XUV mirrors and solar cells.

scholarly journals Table-top extreme ultraviolet second harmonic generation

2021 ◽  
Vol 7 (21) ◽  
pp. eabe2265
Author(s):  
Tobias Helk ◽  
Emma Berger ◽  
Sasawat Jamnuch ◽  
Lars Hoffmann ◽  
Adeline Kabacinski ◽  
...  
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
First Principles ◽  
Extreme Ultraviolet ◽  
Second Harmonic ◽  
High Harmonic ◽  
Electronic Structure Calculations ◽  
Free Electron Lasers ◽  
X Ray ◽  
Structure Calculations

The lack of available table-top extreme ultraviolet (XUV) sources with high enough fluxes and coherence properties has limited the availability of nonlinear XUV and x-ray spectroscopies to free-electron lasers (FELs). Here, we demonstrate second harmonic generation (SHG) on a table-top XUV source by observing SHG near the Ti M2,3 edge with a high-harmonic seeded soft x-ray laser. Furthermore, this experiment represents the first SHG experiment in the XUV. First-principles electronic structure calculations suggest the surface specificity and separate the observed signal into its resonant and nonresonant contributions. The realization of XUV-SHG on a table-top source opens up more accessible opportunities for the study of element-specific dynamics in multicomponent systems where surface, interfacial, and bulk-phase asymmetries play a driving role.

scholarly journals The X-ray and extreme-ultraviolet flux evolution of SS Cygni throughout outburst

2003 ◽  
Vol 345 (1) ◽  
pp. 49-61 ◽  
Author(s):  
Peter J. Wheatley ◽  
Christopher W. Mauche ◽  
Janet A. Mattei
Keyword(s):  
Extreme Ultraviolet ◽  
X Ray

scholarly journals Nanoimaging with a compact extreme-ultraviolet laser

2005 ◽  
Vol 30 (16) ◽  
pp. 2095 ◽  
Author(s):  
G. Vaschenko ◽  
F. Brizuela ◽  
C. Brewer ◽  
M. Grisham ◽  
H. Mancini ◽  
...  
Keyword(s):  
Extreme Ultraviolet ◽  
Ultraviolet Laser
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