外文题目: Bright X-Ray Source from a Laser-Driven Microplasma Waveguide
作者: Yi, Longqing; Pukhov, Alexander; Phuc Luu-Thanh; Shen, Baifei
刊名: Phys. Rev. Lett.
年: 2016 卷: 116 期: 11 文章编号：115001
英文关键词:

COUPLING CONDITIONS; REPETITION-RATE; PLASMA; ELECTRON; GENERATION; PULSES; ACCELERATOR; CHANNEL; SOLIDS; ENERGY
英文摘要:
Owing to the rapid progress in laser technology, very high-contrast femtosecond laser pulses of relativistic intensities have become available. These pulses allow for interaction with microstructured solid-density plasma without destroying the structure by parasitic prepulses. This opens a new realm of possibilities for laser interaction with micro- and nanoscale photonic materials at relativistic intensities. Here we demonstrate, for the first time, that when coupled with a readily available 1.8 J laser, a microplasma waveguide (MPW) may serve as a novel compact x-ray source. Electrons are extracted from the walls and form a dense 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 similar to 100 keV.


文献类型: 期刊论文
正文语种: English
收录类别: SCIEI
DOI: 10.1103/PhysRevLett.116.115001


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