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| VOLUME 107 (2018) | ISSUE 6 | PAGE 366 |
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Whispering gallery effect in relativistic optics
Y. Abea, K. F. F. Lawa, Ph. Korneevb,c 1), S. Fujiokaa, S. Kojimaa, S.-H. Leea, S. Sakataa, K. Matsuoa, A. Oshimaa, A. Moracea , Y. Arikawaa, A. Yogoa, M. Nakaia, T. Norimatsua, E. d'Humièresd, J. J. Santosd, K. Kondoe, A. Sunaharaf, S. Gus'kovc,b 1), V. Tikhonchukd,g
aInstitute of Laser Engineering, Osaka University, 565-0871 Osaka, Japan bNational Research Nuclear University MEPhI, 115409 Moscow, Russia cP.N. Lebedev Physical Institute of RAS, 119991, Moscow, Russia dUniversity of Bordeaux, CNRS, CEA, CELIA, 33405 Talence, France eNational Institute for Quantum and Radiological Science and Technology, 263-8555 Chiba, Japan fPurdue University, 47907 West Lafayette, USA gELI-Beamlines, Institute of Physics Academy of Sciences of the Czech Republic, 252 41 DolníB re zany, Czech Republic
Abstract
A relativistic laser pulse, confined in a cylindrical-like target, under specific conditions may perform multiple scattering along the internal target surface. This results in the confinement of the laser light, leading to a very efficient interaction. The demonstrated propagation of the laser pulse along the curved surface is just yet another example of the "whispering gallery" effect, although nonideal due to laser-plasma coupling. In the relativistic domain its important feature is a gradual intensity decrease, leading to changes in the interaction conditions. The proccess may pronounce itself in plenty of physical phenomena, including very efficient electron acceleration and generation of relativistic magnetized plasma structures. |