Parameters of a laser produced plasma from XUV line profiles
نویسندگان
چکیده
2014 The region of interaction between a focused 1 GW ruby laser beam and a plane beryllium target has been observed end-on with a high resolution stigmatic grazing incidence spectrograph. The profile of the Ly03B1 line of BeIV is made up of two components : a broad asymmetric one, spatially corresponding to the radiation emitted by the high density ablation region and a narrow one superimposed, emitted by the expanding plasma. A model that solves the radiative transfer equation for a moving plasma with adjustable parameters reproduces very well the observed features. It is then possible to determine a unique and realistic set of plasma parameters in good agreement with previous independent observations. J. Physique 43 (1982) 1043-1047 JUILLET 1982, 1
منابع مشابه
Line Profiles of Ni-like Collisional XUV Laser Amplifiers: Particle Correlation Effects
We present a detailed analysis of the different processes that contribute to the spectral broadening of the Ni-like Ag XUV laser line, including the effects of particle correlations on the broadening due to the radiator motion (Doppler broadening). We consider two different regimes of collisional excitation pumping: the transient pumping for which ionic temperature is relatively low (the plasma...
متن کاملBright high-order harmonic generation with controllable polarization from a relativistic plasma mirror
Ultrafast extreme ultraviolet (XUV) sources with a controllable polarization state are powerful tools for investigating the structural and electronic as well as the magnetic properties of materials. However, such light sources are still limited to only a few free-electron laser facilities and, very recently, to high-order harmonic generation from noble gases. Here we propose and numerically dem...
متن کاملStrong Field-Induced Frequency Conversion of Laser Radiation in Plasma Plumes: Recent Achievements
New findings in plasma harmonics studies using strong laser fields are reviewed. We discuss recent achievements in the growth of the efficiency of coherent extreme ultraviolet (XUV) radiation sources based on frequency conversion of the ultrashort pulses in the laser-produced plasmas, which allowed for the spectral and structural studies of matter through the high-order harmonic generation (HHG...
متن کاملXUV diagnostics of colliding laser-produced magnesium plasmas
Charge exchange collisions between highly charged Mg ions in colliding laserproduced magnesium plasmas are studied. Pinhole photography and XUV spectroscopy are used as diagnostic tools. XUV pinhole pictures taken at early stages give more insight into the expansion dynamics of the colliding magnesium plasmas. Spectroscopic studies show selective population of the n = 3 levels of Mg IX ions whi...
متن کاملEffects of cold atmospheric plasma on viability of breast (MDA-MB-231) and cervical (Hela) cancer cells
Introduction: There are many reports published about the use of cold atmospheric plasma in cancer treatment recently. In this way, the selective effects of cold plasma on the breast (MDA-MB-231) and cervical (Hela) cancer cells were studied as a new cancer treatment method. Materials and Methods: In this study, cold atmospheric pressure plasma was generated using a plasma jet reactor and also o...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2016