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Terahertz-driven linear electron acceleration
Terahertz-driven accelerating structures enable high-gradient electron/proton accelerators with simple accelerating structures, high repetition rates and significant charge per bunch that hold great potential to have a transformative impact for free electron lasers, linear colliders, ultrafast electron diffraction, X-ray science and medical therapy with X-rays and electron beams. Expand
Segmented Terahertz Electron Accelerator and Manipulator (STEAM)
The STEAM device demonstrates the feasibility of terahertz-based electron accelerators, manipulators and diagnostic tools, enabling science beyond current resolution frontiers with transformative impact. Expand
On the Computation of Electromagnetic Dyadic Green's Function in Spherically Multilayered Media
The dyadic Green's function (DGF) method is an attractive approach for the calculation of electromagnetic scattering in spherically symmetric layered geometry. We investigate a recent formulation andExpand
Design of tunable biperiodic graphene metasurfaces
Journal article Design of tunable biperiodic graphene metasurfaces Fallahi, Arya; Perruisseau-Carrier, Julien Published in: Physical Review B (ISSN: 1098-0121), vol. 86, num. 19 College Pk: AmerExpand
Efficient Procedures for the Optimization of Frequency Selective Surfaces
The comparison of results obtained from each algorithm shows the very high probability of finding global optima when a special microgenetic and a special quasi-deterministic algorithm is applied. Expand
Evolutionary Optimization of Graphene-Metal Metasurfaces for Tunable Broadband Terahertz Absorption
Tunable terahertz absorbers based on graphene frequency selective surfaces are designed using well-established evolutionary optimization techniques. Randomly initialized hill climbing (RHC) algorithmExpand
Ultrafast, surface plasmon-enhanced, au nanorod optical field electron emitter arrays
The peak optical field at which the electron emission mechanism transitions from a 3-photon absorption mechanism to strong-field tunneling emission is identified, and the effects of nanorod array density on Nanorod charge yield, including measurement of space-charge effects are investigated. Expand
Toward a terahertz-driven electron gun
It is shown that scaling to the readily-available GV/m THz field regime would translate to monoenergetic electron beams of ~100 keV, which would be enough to resolve state transitions in carbon nanotubes, molecular structures, organic salts, and charge density wave materials. Expand
Ultrafast, surface plasmon-enhanced, au nanorod optical field electron emitter arrays
In this work we demonstrate the design, fabrication and characterization of ultrafast, surface-plasmon enhanced Au nanorod photofield emitter arrays. We present a quantitative analysis of chargeExpand
Challenges in simulating beam dynamics of dielectric laser acceleration
Dielectric Laser Acceleration (DLA) achieves the highest gradients among structure-based electron accelerators. The use of dielectrics increases the breakdown field limit, and thus the achievable g...