Momentum absorption and magnetic field generation by obliquely incident light

Anno: 2019

Autori: Macchi A., Grassi A., Amiranoff F., Riconda C.

Affiliazione autori: CNR, Natl Inst Opt INO, Via G Moruzzi 1, I-56124 Pisa, Italy; Univ Pisa, Dipartimento Fis Enrico Fermi, Lgo Bruno Pontecorvo 3, I-56127 Pisa, Italy; SLAC Natl Accelerator Lab, High Energy Dens Sci Div, Menlo Pk, CA 94025 USA; Sorbonne Univ, CEA, LULI UPMC, CNRS,Ecole Polytech, F-75005 Paris, France.

Abstract: The partial reflection of an electromagnetic (EM) wave from a medium leads to absorption of
momentum in the direction perpendicular to the surface (the standard radiation pressure) and, for oblique
incidence on a partially reflecting medium, also in the parallel direction. This latter component drives
a transverse current and a slowly growing, quasi-static magnetic field in the evanescence “skin” layer.
Through a simple model we illustrate how EM momentum is transfered to ions and estimate the value of
the magnetic field which may be of the order of the driving EM wave field, i.e. up to several hundreds of
megagauss for high-intensity laser-solid interactions.

Giornale/Rivista: EUROPEAN PHYSICAL JOURNAL PLUS

Volume: 134 (9)      Da Pagina: 420-1  A: 420-9

Maggiori informazioni: AG and CR acknowledge useful discussions with M. Grech. AG is supported by the U.S. DOE Early Career Research Program under FWP 100331.
Parole chiavi: laser-pulses, electromagnetic momentum, optical absorption, nonlinear optics, magnetic field generation, laser-plasma interactions
DOI: 10.1140/epjp/i2019-12802-0

Citazioni: 2
dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2025-01-12
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