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 present the results of an experiment performed at the NSF Center for EUV Science and Technology (Colorado State University) in which a wavefront division interferometer was used to investigate the temporal coherence of seeded and unseeded GRIP transient Mo X-ray laser emitting at 18.9 nm. We find that the coherence time of the X-ray laser pulse is of the order of 1.7 ps in the ASE mode and slightly...
We review recent experimental work devoted to the characterization of the spectral profile and linewidth of two types of XUV lasers seeded by high-order harmonic radiation. The spectral properties were deduced from the measurement of the temporal coherence of the XUV laser pulse, using a variable pathlength interferometer. In this paper an optical-field ionization XUV laser developed at LOA laboratory...
Two dimensional hydrodynamic behavior of x-ray laser plasma on slab under non-equilibrium condition was studied in a novel way. Changes of the characters of plasma with time were investigated. It is found that the inhomogeneity of plasma along the line focus can be relaxed by the hydrodynamic motion. Usually the process takes more than 1ns for temperature to get uniform and several hundreds picoseconds...
The linewidth of an injection-seeded 18.9nm molybdenum soft x-ray laser (SXRL) was measured to be significantly wider than seeded optical field ionization SXRLs that use gaseous targets, an advantage for the development of sub-picosecond SXRLs.
We put forward a novel frequency offset estimator for burst orthogonal frequency division multiplexing (OFDM) systems under double selective fading channels. With the help of pilot bits and channel estimates in frequency domain, we calculate the delay power spectrum (DPS) of multi‐path channels and estimate the integer carrier frequency offset (CFO), in which the FFT‐realized (Fast Fourier Transform...
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.