Collimated Fast Electron Emission from Long Wires Irradiated by Intense Femtosecond Laser Pulses

Autor:	Shigeki Tokita, Kazuto Otani, Toshihiko Nishoji, Shuji Sakabe, Shunsuke Inoue, Masaki Hashida
Rok vydání:	2011
Předmět:	Physics business.industry General Physics and Astronomy Electron Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Laser Collimated light Pulse (physics) law.invention Optics law Electric field Femtosecond Irradiation Atomic physics business Intensity (heat transfer)
Zdroj:	Physical Review Letters. 106
ISSN:	1079-7114 0031-9007
DOI:	10.1103/physrevlett.106.255001
Popis:	We have experimentally demonstrated that fast electrons emitted from a metallic wire irradiated by a 5x10{sup 18} W/cm{sup 2} laser pulse can be collimated along the wire, and that their intensity is significantly enhanced in the axial direction of the wire. As the wire length is increased up to 30 mm from the laser focal spot, the angular divergence of the emitted electrons with energies of hundreds of keV decreases to 65 mrad. Numerical simulations reveal that the electrons are trapped by the transient electric field surrounding the wire and guided along the axial direction.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3eb76798cec04f4e6bc1a77656bbb149 https://doi.org/10.1103/physrevlett.106.255001 Zobrazit plný text záznamu