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 a pump-probe phase-contrast method that reconstructs the spatio-temporal profile of plasma structures at density as low as 1016 cm−3. The method is compatible with very thin, very long, even turbulent media.
We report on the generation of coherent N2+ emissions in a plasma string driven by two-color laser fields and measure their temporal structures. It is confirmed that the coherent emissions originate from seed-injected amplification.
The mechanism of the nonlinear photo-carrier generation in low-temperature-grown GaAs by 1.5 μm pulses was investigated by a double pulse experiment. The effect of intermediate excitation on the photo response was distinctly observed. Moreover, the effect was found to be largely coherent, contrary to the proposed model.
A fourth-harmonic (263-nm) probe beam has been commissioned on OMEGA EP. A novel diagnostic has been developed for it to diagnose plasma-density profiles using angular spectral filters to generate a contour map of refractive angles.
We demonstrate the measurement of transient dispersion in fused silica by RT-MIIPS. The results are validated via Fourier Transform Spectral Interferometry. The observed dispersion modulation is explained within a theoretical model.
We demonstrate self-referenced spectral-domain interferometry (SDI) for terahertz detection. It not only overcomes the limitation of over-rotation for intense terahertz fields, but also considerably increases the signal-to-noise ratio, when compared with conventional SDI techniques.
We demonstrate „Simultaneous Unbalanced Shared Local Oscillator Heterodyne Interferometry (SUSHI),“ a new method for minimally destructive, high SNR dispersive detection of atomic spins. In SUSHI, technical noise due to phase, amplitude, and frequency fluctuations of the probe laser is strongly rejected (i) for any mean phase bias between the interferometer arms, (ii) without the use of piezo actuated...
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.