Bright X-ray source from a laser-driven micro-plasma-waveguide

Abstract

Owing to the rapid progress in laser technology, very high-contrast femtosecond laser pulses of relativistic intensities become available. These pulses allow for interaction with micro-structured solid-density plasma without destroying the structure by parasitic pre-pulses. This opens a new realm of possibilities for laser interaction with micro- and nano-scales photonic materials at the relativistic intensities. Here we demonstrate, for the first time, that when coupling with a readily available 1.8 Joule laser, a micro-plasma-waveguide (MPW) may serve as a novel compact x-ray source. Electrons are extracted from the walls and form a dense self-organized helical bunch inside the channel. These electrons are efficiently accelerated and wiggled by the waveguide modes in the MPW, which results in a bright, well-collimated emission of hard x-rays in the range of 1~100 keV.

5 pages, 4 figures

References in corpus (8)

• Femtosecond x rays from laser-plasma accelerators
• All-optical Compton gamma-ray source
• Dielectric Laser Acceleration
• Microengineering laser plasma interactions at relativistic intensities
• The Effects of Front-Surface Target Structures on Properties of Relativistic Laser-Plasma Electrons
• Obtaining high degree of circular polarization at X-ray FELs via a reverse undulator taper
• Gamma-ray generation in ultrahigh-intensity laser-foil interactions
• Towards manipulating relativistic laser pulses with 3D printed materials

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• High-Harmonic Generation and Spin-Orbit Interaction of Light in a Relativistic Oscillating Window
• Coherent diffraction radiation of relativistic terahertz pulses from a laser-driven micro-plasma-waveguide
• Highly collimated electron acceleration by longitudinal laser fields in a hollow-core target
• Relativistic magnetic reconnection driven by a laser interacting with a micro-scale plasma slab
• Synchrotron emission from nanowire-array targets irradiated by ultraintense laser pulses
• Deciphering in situ electron dynamics of ultrarelativistic plasma via polarization pattern of emitted gamma photons
• Enhancement on Laser Intensity and Proton Acceleration Using Micro-tube Plasma Lens Targets
• Radiation from laser-microplasma-waveguide interactions in the ultra-intense regime
• Multimillijoule terahertz radiation from laser interactions with microplasma-waveguides
• Control of transverse motion and X-ray emission of electrons accelerated in laser-driven wakefields by tuning laser spatial chirp
• Spin-orbit interaction in a high-power laser irradiated micro-scale plasma waveguide
• High-efficient harmonic vortex generation from a laser irradiated hollow-cone target
• Effects of simulation dimensionality on laser-driven electron acceleration and photon emission in hollow micro-channel targets