Laser plasma lens
AssigneesEcole Polytechnique, Ecole Nationale Superieure De Techniques Avancees
InventorsCédric THAURY, Rémi LEHE, Victor MALKA, Emilien GUILLAUME
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Abstract
A device for collimation or focusing of a relativistic electron packet, obtained in particular by laser-plasma acceleration, including a gas cloud and a laser capable of emitting a laser pulse focused in the gas cloud in order to create therein a wave of focusing electric and magnetic fields. The invention also relates to a device for emission of a collimated or focused relativistic electron packet. The invention further relates to a collimation or focusing method for a relativistic electron packet, and to methods for emission of a collimated or focused relativistic electron packet.
Claims22
A device for collimating or focusing a bunch of relativistic electrons comprising a gas cloud and a laser suitable for emitting a laser pulse focused in the gas cloud to create therein a wave of focusing electrical and magnetic fields.
A method for emitting a bunch of collimated or focused relativistic electrons, comprising the steps:
- emitting a laser pulse focused in a first gas cloud to create therein a wave of electrical and magnetic fields for accelerating electrons present in the gas and thus form a bunch of relativistic electrons which is propagated out of the first gas cloud, the laser pulse also being focused in a second gas cloud to create therein a wave of focusing electrical and magnetic fields, the first gas cloud being remote from the second ionizable gas cloud,
- subjecting the bunch of relativistic electrons to the wave of focusing electrical and magnetic fields.
A method for emitting a bunch of collimated or focused relativistic electrons, comprising the steps:
- emitting a first laser pulse focused in a first gas cloud to create therein a wave of electrical and magnetic fields for accelerating electrons present in the gas and thus form a bunch of relativistic electrons which is propagated out of the first gas cloud,
- emitting a second laser pulse focused in a second gas cloud to create therein a wave of focusing electrical and magnetic fields, the first gas cloud being remote from the second gas cloud, and
- subjecting the bunch of relativistic electrons to the wave of focusing electrical and magnetic fields.
Dependencies are inferred from the claim text.