Share

Super-Intense Laser-Atom Physics

2001-03-31 Science
Download Super-Intense Laser-Atom Physics PDF Online Free

Author :
Release : 2001-03-31
Genre : Science
Kind : eBook
Book Rating : 632/5 ( reviews)

GET EBOOK


Book Synopsis Super-Intense Laser-Atom Physics by : Bernard Piraux

Download or read book Super-Intense Laser-Atom Physics written by Bernard Piraux. This book was released on 2001-03-31. Available in PDF, EPUB and Kindle. Book excerpt: The study of atomic systems exposed to super-intense laser fields de fines an important area in atomic, molecular and optical physics. Although the concept of super-intense field has no absolute meaning, it is now usual to call an electromagnetic field super-intense when it exceeds the atomic binding field. In the case of the simplest atomic system, hydrogen in its 16 2 ground state, this occurs above an intensity of 3. 5 x 10 Wattfcm which is the atomic unit of intensity. Presently at the laboratory scale and in ex tremely short and tightly focussed laser pulses, the electric field strength 16 18 2 reaches peak values which are of the order of 10 - 10 Wattfcm in the infrared frequency regime, the prospect being that such peak intensities may be reached within a few years in a regime of much higher frequencies (XUV or even X). The interaction of such electromagnetic fields with an atomic system has a highly non-linear character which has led to the observation of to tally unexpected phenomena. There are three fundamental processes which have marked the beginning of an intensive research in the field of super intense laser-atom physics (SILAP). These processes which only involve one atomic electron are (i) the so-called above-threshold ionisation i. e.

Super-Intense Laser—Atom Physics

2012-12-06 Science
Download Super-Intense Laser—Atom Physics PDF Online Free

Author :
Release : 2012-12-06
Genre : Science
Kind : eBook
Book Rating : 635/5 ( reviews)

GET EBOOK


Book Synopsis Super-Intense Laser—Atom Physics by : A. L'Huillier

Download or read book Super-Intense Laser—Atom Physics written by A. L'Huillier. This book was released on 2012-12-06. Available in PDF, EPUB and Kindle. Book excerpt: The rapid development of powerful pulsed lasers is at the origin of a conside rable interest in studying the response of an atom, a molecule (or a solid) to a strong electromagnetic field. It is now possible to produce at the laboratory scale, ultra-short 13 pulses with a duration of 100 femtoseconds (10- second) and a power of the order 12 of 1 terawatt (10 Watt). Under these conditions, very high peak intensities may be obtained and electric fields exceeding typical electron binding fields in atoms are generated. The interaction of an atom or a molecule with such electromagnetic fields has a highly non-linear character which leads to unexpected phenomena. Amongst them, - above-threshold ionization (ATI) i.e. the absorption of additional photons in excess of the minimal number necessary to overcome the ionization potential and its molecular counterpart, above-threshold dissociation (ATD); - generation of very high harmonics of the driving field; - stabilization of one-electron systems in strong fields. These processes were the main topics of two international meetings which were held in 1989 and 1991 in the United States under the common name SILAP (Super-Intense Laser-Atom Physics).

Super-Intense Laser-Atom Physics IV

1996-05-31 Science
Download Super-Intense Laser-Atom Physics IV PDF Online Free

Author :
Release : 1996-05-31
Genre : Science
Kind : eBook
Book Rating : 485/5 ( reviews)

GET EBOOK


Book Synopsis Super-Intense Laser-Atom Physics IV by : H.G. Muller

Download or read book Super-Intense Laser-Atom Physics IV written by H.G. Muller. This book was released on 1996-05-31. Available in PDF, EPUB and Kindle. Book excerpt: Atoms in strong radiation fields are interesting objects for study, and the research field that concerns itself with this study is a comparatively young one. For a long period after the ~scovery of the photoelectric effect. it was not possible to generate electro magnetic fields that did more than perturb the atom only slightly, and (first-or~er) perturbation theory could perfectly explain what was going on at those low intensities. The development of the pulsed laser bas changed this state of affairs in a rather dramatic way, and fields can be applied that really have a large, or even dominant influence on atomic structure. In the latter case, w~ speak of super-intense fields. Since the interaction between atoms and electromagnetic waves is characterized by many parameters other than the light intensity, such as frequency, iQnization potential, orbit time, etc., it is actually quite difficult to define what is exactly meant by the term 'super-intense'. Obviously the term does not have an absolute meaning, and intensity should always be viewed in relation to other properties of the system. An atom in a radiation field can thus best be described in terms of various ratios of the quantities involved. The nature of the system sometimes drastically changes if the value of one of these parameters exceeds a certain critical value, and the new regime could be called super-intense with respect to that parameter.

Atoms, Solids, and Plasmas in Super-Intense Laser Fields

2012-12-06 Science
Download Atoms, Solids, and Plasmas in Super-Intense Laser Fields PDF Online Free

Author :
Release : 2012-12-06
Genre : Science
Kind : eBook
Book Rating : 510/5 ( reviews)

GET EBOOK


Book Synopsis Atoms, Solids, and Plasmas in Super-Intense Laser Fields by : Dimitri Batani

Download or read book Atoms, Solids, and Plasmas in Super-Intense Laser Fields written by Dimitri Batani. This book was released on 2012-12-06. Available in PDF, EPUB and Kindle. Book excerpt: The recent developement of high power lasers, delivering femtosecond pulses of 20 2 intensities up to 10 W/cm , has led to the discovery of new phenomena in laser interactions with matter. At these enormous laser intensities, atoms, and molecules are exposed to extreme conditions and new phenomena occur, such as the very rapid multi photon ionization of atomic systems, the emission by these systems of very high order harmonics of the exciting laser light, the Coulomb explosion of molecules, and the acceleration of electrons close to the velocity of light. These phenomena generate new behaviour of bulk matter in intense laser fields, with great potential for wide ranging applications which include the study of ultra-fast processes, the development of high-frequency lasers, and the investigation of the properties of plasmas and condensed matter under extreme conditions of temperature and pressure. In particular, the concept of the "fast ignitor" approach to inertial confinement fusion (ICF) has been proposed, which is based on the separation of the compression and the ignition phases in laser-driven ICF. The aim of this course on "Atom, Solids and Plasmas in Super-Intense Laser fields" was to bring together senior researchers and students in atomic and molecular physics, laser physics, condensed matter and plasma physics, in order to review recent developments in high-intensity laser-matter interactions. The course was held at the Ettore Majorana International Centre for Scientific Culture in Erice from July 8 to July 14,2000.

NATO Advanced Research Workshop on Super-Intense Laser-Atom Physics

1993
Download NATO Advanced Research Workshop on Super-Intense Laser-Atom Physics PDF Online Free

Author :
Release : 1993
Genre :
Kind : eBook
Book Rating : /5 ( reviews)

GET EBOOK


Book Synopsis NATO Advanced Research Workshop on Super-Intense Laser-Atom Physics by : NATO.

Download or read book NATO Advanced Research Workshop on Super-Intense Laser-Atom Physics written by NATO.. This book was released on 1993. Available in PDF, EPUB and Kindle. Book excerpt:

You may also like...