The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
We demonstrate single-shot measurement of fringe visibility of 13-nm high-order harmonic beam in a Youngpsilas double slit experiment. The visibility of 0.96 was obtained with optimal phase-matching condition for the 13-nm harmonics.
A dramatic enhancement of harmonics and the extension of cutoff were observed in a linearly polarized two-color laser field below 10 nm. The intense soft X-ray supercontinuum provides an alternative for the attosecond generation.
Polarization gated high harmonic generation was phase matched to produce 104 XUV photons per shot. This allowed us to observe the dependence of the XUV supercontinuum on the carrier envelope phase of the laser pulses.
When the laser field consisting of sub-10-fs fundamental and its second harmonic was used for high harmonic generation, a continuum centered at 30 nm with a spectral bandwidth of 8 nm was obtained with an energy of 10 nJ.
Addition of 1% second harmonic intensity to the driving field in high-harmonic generation can be used to double the attosecond-pulse period to one optical cycle, explained by a classical mechanism and observed in a quantum simulation.
Isolated XUV pulses with a temporal duration of 950 as were characterized by the autocorrelation technique based on two-photon above threshold ionization.
We demonstrate a significant extension of the high harmonic cutoff by generation in a pre-ionized plasma created with a capillary discharge. In xenon, the cutoff extends from ~ 95 to 140 eV.
We present temporal characterization of attosecond pulse trains generated during self-guided propagation of intense pulses in a long gas target. Spectral phase jumps are observed, affecting the temporal shape of the attosecond pulse train.
We have observed ablation patterns on metal surfaces made by focusing high-order harmonics in the soft-X-ray region. The ablation processes are investigated from the intensity dependence.
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.