Towards a Fully Integrated Accelerator on a Chip: Dielectric Laser Acceleration (DLA) From the Source to Relativistic Electrons

Wootton, Kent; Aßmann, Ralph; Black, Dylan; Byer, Robert; Cowan, Benjamin; Deng, Huiyang; Egenolf, Thilo; England, Robert; Fan, Shanhui; Harris, James; Hartl, Ingmar; Hommelhoff, Peter; Hughes, Tyler; Illmer, Johannes; Ischebeck, Rasmus; Kärtner, Franz; Kuropka, Willi; Lee, Yun Jo; Li, Ang; Mayet, Frank; McNeur, Josh; Mittelbach, Anna; Musumeci, Pietro; Niedermayer, Uwe; Qi, Minghao; Rivkin, Leonid; Rühl, Axel; Sapra, Neil; SchÃ¶Nenberger, Norbert; Solgaard, Olav; Tafel, Alex; Tantawi, Sami; Vuckovic, Jelena

doi:10.18429/jacow-ipac2017-weyb1

Cited by 5 publications

(3 citation statements)

References 35 publications

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“…Once a solution for E is in hand, the magnetic field B may then be immediately obtained from the third of Eqs. (1). By the Floquet Theorem, the solutions to Maxwell's equations subject to periodic boundary conditions along coordinate z with periodicity u = λ p ẑ satisfy E(r + u) = E(r)e iψ and B(r + u) = B(r)e iψ , where ψ is the phase shift from one cell to the next.…”

Section: Formulation Of Fields a General Field Relationsmentioning

confidence: 99%

“…The use of micron-scale photonic structures powered by solid state lasers to accelerate charged particles is a growing area of scientific interest with a substantial international research effort now underway [1]. Although dielectric laserdriven accelerators (DLAs) have been proposed using a variety of 1D, 2D and 3D geometries [2], [3], [4], [5] most structure designs currently under experimental testing are based on a planar-symmetric geometry that is periodic along the particle beam propagation direction (here taken to be the z axis) and invariant in one orthogonal coordinate (x) with a narrow subwavelength vacuum channel in the other transverse dimension (y).…”

Section: Introductionmentioning

confidence: 99%

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Transverse forces in planar symmetric dielectric laser-driven accelerators

England,

Ody,

Huang

2019

Preprint

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The use of dielectric microstructures driven by solid state lasers to accelerate charged particles or to transversely deflect them is a growing area of scientific interest with an international collaboration of researchers working to develop this concept. Many experimental efforts and new designs use a planar symmetric geometry with sub-micron apertures for the particle beam. We provide a general theoretical framework for the electromagnetic fields in this type of geometry, including derivation of the TE and TM modes supported, and examine the transverse force components exerted on the beam, which may be used for focusing or for deflection of the particles.

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Section: Formulation Of Fields a General Field Relationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Transverse forces in planar symmetric dielectric laser-driven accelerators

England,

Ody,

Huang

2019

Preprint

View full text Add to dashboard Cite

show abstract

“…Dielectric laser acceleration (DLA) is one of the possible techniques for future compact accelerators [1][2][3][4][5] (see also Rasmus Ischebeck's invited lecture at this conference). Ongoing conceptual, design, fabrication and experimental work on DLA is accompanied by simulations.…”

Section: Introductionmentioning

confidence: 99%

Electron dynamics in grating-type dielectric laser accelerators: Particle transfer function, generalized acceleration/deflection gradients and Panofsky–Wenzel theorem

Szczepkowicz

2018

Nuclear Instruments and Methods in Physics Research Section A:

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The notions of acceleration gradient and deflection gradient are generalized to phasor quantities (complex-valued functions) in the context of dielectric laser acceleration (DLA). It is shown that the electromagnetic forces imparted on a near-resonant particle traversing a unit cell of a grating-type DLA can be conveniently described by generalized acceleration and deflection gradients. A simple formulation of the Panofsky-Wenzel theorem in terms of the generalized gradients is given. It is shown that all particle transfer properties of a DLA unit cell can be derived from a single, complex-valued function, the generalized acceleration gradient.

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A compact electron source for the dielectric laser accelerator

Hirano

Urbánek

Ceballos

et al. 2020

Applied Physics Letters

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In this work, we design and demonstrate a compact electron source that combines an integrated silicon nanotip photoemitter with a compact silicon-based electrostatic lens. The lens simultaneously accelerates electrons to 30 keV and focuses the resulting beam to a 0.4 μm (RMS) beam diameter with 62 pm-rad normalized emittance at a distance of 20 mm from the cathode. The compact nature of this lens provides a compelling source for dielectric laser accelerator (DLA) beamlines, ultrafast electron diffraction, or ultrafast electron microscopy. Driven by a 220 fs, 1960 nm pulsed laser beam, electron currents up to 28 electrons/pulse at 100 kHz are demonstrated. The electron bunch length is 540 ± 50 fs for photocurrents of <1 electron/pulse, increasing to 700 ± 80 fs for 28 electrons/pulse, as measured by cross correlation with a 220 fs pulsed laser beam. The maximum 5D peak brightness is measured to be 6.8 × 1013 A/(m2 rad2) at 28 electrons/pulse. These results represent a significant step toward developing practical benchtop-sized linear accelerators based on DLA technology or compact ultrafast electron microscopy and diffraction applications.

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Towards a Fully Integrated Accelerator on a Chip: Dielectric Laser Acceleration (DLA) From the Source to Relativistic Electrons

Cited by 5 publications

References 35 publications

Transverse forces in planar symmetric dielectric laser-driven accelerators

Transverse forces in planar symmetric dielectric laser-driven accelerators

Electron dynamics in grating-type dielectric laser accelerators: Particle transfer function, generalized acceleration/deflection gradients and Panofsky–Wenzel theorem

A compact electron source for the dielectric laser accelerator

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