Fakultät für Physik




Laser Acceleration and High Field Science – Übersicht

Prof. Dr. Toshiki Tajima

289-14085; (s) 289-14078

Informationen zur Vorlesung

Zeit und Ort

Monday 9 - 12 a.m.
Theresienstr. 37
Seminar room A450

In this lecture the recent development of intense lasers and its application to high field science will be reviewed. One of the earliest suggestion to use ultraintense laser, now what is called relativistic intensities of laser, was in 1979 by Tajima and Dawson to introduce the laser acceleration. As is known through the Woodward-Lawson Theorem, mere application of laser, the transverse EM waves, is incapable of acceleration. One needs to take advantage of what we call the relativistic nonlinearity. As we have learned through a myriad of plasma instabilities, one needs to discover a way to avoid these instabilities and yet to take advantage of the physics of the plasma’s collective force. Thus laser acceleration has opened a way to the science of high fields. We dissect nonlinearities of matter based on the different level of the laser intensities, starting from the molecular nonlinearity, atomic nonlinearity, then the plasma’s relativistic nonlinearity, and finally ultra-relativistic nonlinearity. We may even have nonlinearity of vacuum beyond the horizon of matter’s nonlinearities. This is where the contemporary vacuum physics by ultra intense lasers works. The science by which these new vistas are explored is now called high field science. We shall review its scope and promise in these lectures. Applications include: laser electron acceleration, ion acceleration, relativistic engineering, medical applications of laser acceleration, gamma ray beam physics, the next generation of high energy accelerator physics by laser, ultrafast science with intense lasers, high field science such as vacuum physics with laser, exploration of semimacro fields of unexplored regimes (such as axion-like fields and dark energy), etc. We also explain why it is necessary to go to intense fields of laser in order to reach shortest possible time scales such as attoseconds and zeptoseconds and beyond. Applications to astrophysics, bio-science and medicine will be also discussed. 

Literature: G. Mourou, T. Tajima, and S. Bulanov, Rev. Mod. Phys. 78, 309 (2006).

                  T. Tajima, “Laser Acceleration and High Field Science”, submitted to RPP (2010).

Syllabus and Structure of Lectures will be posted in a separate sheet.

Important review articles you can find under the 'downloads' category.