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Fiber laser technology and related performance and maturity are surveyed with the perspectives of laser acceleration. Advantageous fiber attributes allow high efficiencies in energy-conversion and heat removal and superior performance in high repetition. Wide utilization in the industries has led to high reliability and cost effectiveness in fiber laser technology. With coherent combination of fiber amplifiers, average-power and peak-power levels are targeted for practical laser-driven plasma acceleration applications.
We have developed a multi-terawatt Ti:Sapphire laser system to study on the laser driven particle accelerators. We have also developed a relevant instruments that contains a pointing stabilizer and single-shot selector to perform a lot of experimental studies. After development, we are studying on the electron acceleration. A quasi-monoenergetic electron beam is observed in the forward direction. The peak energy of a quasi-monoenergetic component of the electron beam is 20 MeV with a energy spread of 20% at the plasma density of 4.7 × 1019cm-3. The table-top laser driven fs quasi-monoenergetic electron beam which is applicable to variety of fields is described.
Synchrotron radiation produced either in storage rings or SASE-FELs is longitudinally incoherent. In this paper a way to produce short longitudinally coherent X-ray pulses is discussed. In addition it is investigated if these sources can be modified to use them as light sources for vacuum electron accelerators.
This is a duplicate pubication and the authors submitted and published the same article in APL.
An algorithm for simulation of laser/particle interactions using normalized units related to different laser frequencies was studied. Correct and wrong conversion methods between different normalized units were investigated in simulations of vacuum laser acceleration. The dynamic characteristics obtained with different processing methods differ greatly and some good acceleration results are actually no other than errors stemming from incorrect treatments of the normalized units.
Electron acceleration is simulated under the superposition of two co-propagating laser beams. The numerical results indicate that the acceleration effect is clearly enhanced when a modulating field with different frequencies is applied. Our results also show that the modulating field should not be too strong or too weak, and the final energy gain is not sensitive to the wave polarization state of the modulating field.
With the advent of the Thin Film Compression, high energy single-cycled laser pulses have become an eminent path to the future of new high-field science. An existing CPA high power laser pulse such as a commercially available PW laser may be readily converted into a single-cycled laser pulse in the 10PW regime without losing much energy through the compression. We examine some of the scientific applications of this, such as laser ion accelerator called single-cycle laser acceleration (SCLA) and bow wake electron acceleration. Further, such a single-cycled laser pulse may be readily converted through relativistic compression into a single-cycled, X-ray laser pulse. We see that this is the quickest and very innovative way to ascend to the EW (exawatt) and zs (zeptosecond) science and technology. We suggest that such X-ray laser pulses have a broad and new horizon of applications. We have begun exploring the X-ray crystal (or nanostructured) wakefield accelerator and its broad and new applications into gamma rays. Here, we make a brief sketch of our survey of this vista of the new developments.
With the advent of the Thin Film Compression, high energy single-cycled laser pulses have become an eminent path to the future of new high-field science. An existing CPA high power laser pulse such as a commercially available PW laser may be readily converted into a single-cycled laser pulse in the 10PW regime without losing much energy through the compression. We examine some of the scientific applications of this, such as laser ion accelerator called single-cycle laser acceleration (SCLA) and bow wake electron acceleration. Further, such a single-cycled laser pulse may be readily converted through relativistic compression into a single-cycled, X-ray laser pulse. We see that this is the quickest and very innovative way to ascend to the EW (exawatt) and zs (zeptosecond) science and technology. We suggest that such X-ray laser pulses have a broad and new horizon of applications. We have begun exploring the X-ray crystal (or nanostructured) wakefield accelerator and its broad and new applications into gamma rays. Here, we make a brief sketch of our survey of this vista of the new developments.
Fiber laser technology and related performance and maturity are surveyed with the perspectives of laser acceleration. Advantageous fiber attributes allow high efficiencies in energy-conversion and heat removal and superior performance in high repetition. Wide utilization in the industries has led to high reliability and cost effectiveness in fiber laser technology. With coherent combination of fiber amplifiers, average-power and peak-power levels are targeted for practical laser-driven plasma acceleration applications.