منابع مشابه
Parameters of a laser produced plasma from XUV line profiles
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...
متن کاملUltrafast XUV emission from laser wakefields in underdense plasma
It is shown that a laser wakefield driven in the highly nonlinear regime or the wave-breaking regime in underdense plasma can emit ultrabroad-band bright extreme ultraviolet (XUV) radiation pulses, which are as short as a few hundreds of attoseconds in one-dimensional simulations and a few femtoseconds in multi-dimensional cases. The emission is caused by a transverse current sheet co-moving wi...
متن کاملCoherence of XUV Laser Sources
This article reviews recent developments in research on coherence properties of femtosecond XUV and x-ray lasers. Coherence is one of the most conspicuous features of laser sources. It describes how an electromagnetic wave field is correlated at different times and at different points in space. Coherence is a property that enables stationary interferences and thereby enables holographic and dif...
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 کاملLaser physics and laser-tissue interaction.
Within the last few years, lasers have gained increasing use in the management of cardiovascular disease, and laser angioplasty has become a widely performed procedure. For this reason, a basic knowledge of lasers and their applications is essential to vascular surgeons, cardiologists, and interventional radiologists. To elucidate some fundamental concepts regarding laser physics, we describe h...
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ژورنال
عنوان ژورنال: Kakuyūgō kenkyū
سال: 1988
ISSN: 0451-2375,1884-9571
DOI: 10.1585/jspf1958.59.87