PAC2013 - List of Authors (Spencer, J.E.)

Paper	Title	Page
MOPAC28	Applications for Optical-Scale Dielectric Laser Accelerators	129
	R.J. England, Z. Huang, C. Lee, R.J. Noble, J.E. Spencer, Z. Wu SLAC, Menlo Park, California, USA B. Montazeri, E.A. Peralta, K. Soong Stanford University, Stanford, California, USA M. Qi Purdue University, West Lafayette, Indiana, USA L. Schächter Technion, Haifa, Israel
	Funding: Work supported by U.S. Department of Energy under Grants DE-AC02-76SF00515, DE-FG06-97ER41276 and by DARPA Grant N66001-11-1-4199. Particle acceleration in dielectric laser-driven micro-structures, recently demonstrated at SLAC*, holds the promise of providing low-cost compact accelerators for a wide variety of uses. Laser-driven undulators based upon this concept could attain very short (mm to sub-mm) periods with multi-Tesla field strengths. And since dielectric laser accelerators (DLAs) operate optimally with optical-scale electron bunch formats, radiation production with high repetition rate (10s of MHz) attosecond-scale pulses is a natural combination. We present preliminary analysis of the harmonic field structure for a periodic undulator based on this concept.

MOPAC31	Simulation of Power Coupling and Wakefield in Photonic Bandgap Fibers for Dielectric Laser Acceleration	135
	C.-K. Ng, R.J. England, R.J. Noble, J.E. Spencer SLAC, Menlo Park, California, USA
	Funding: Work supported by the US DOE under contract DE-AC02-76SF00515. A photonic band gap (PBG) lattice in dielectric fiber can provide high gradient acceleration in the optical regime, where the accelerating mode is obtained from the presence of a single defect in the lattice. In this paper, we will investigate two aspects of the PBG for acceleration. First, the excitation of the accelerating mode can be achieved by directing high-power lasers from free space. Simulation using ACE3P has demonstrated that, by appropriately shaping the end of the PBG fiber, power can be coupled into the fiber using a simple laser configuration. Second, the wakefield generated by the transit of a beam through a PBG fiber will be simulated using ACE3P. The free-space, outgoing radiation spectrum and distribution of the wakefield will be evaluated and corroborated with measurements from a commercial fiber.

Paper

Title

Page

Applications for Optical-Scale Dielectric Laser Accelerators

129

R.J. England, Z. Huang, C. Lee, R.J. Noble, J.E. Spencer, Z. Wu
SLAC, Menlo Park, California, USA
B. Montazeri, E.A. Peralta, K. Soong
Stanford University, Stanford, California, USA
M. Qi
Purdue University, West Lafayette, Indiana, USA
L. Schächter
Technion, Haifa, Israel

Funding: Work supported by U.S. Department of Energy under Grants DE-AC02-76SF00515, DE-FG06-97ER41276 and by DARPA Grant N66001-11-1-4199.
Particle acceleration in dielectric laser-driven micro-structures, recently demonstrated at SLAC*, holds the promise of providing low-cost compact accelerators for a wide variety of uses. Laser-driven undulators based upon this concept could attain very short (mm to sub-mm) periods with multi-Tesla field strengths. And since dielectric laser accelerators (DLAs) operate optimally with optical-scale electron bunch formats, radiation production with high repetition rate (10s of MHz) attosecond-scale pulses is a natural combination. We present preliminary analysis of the harmonic field structure for a periodic undulator based on this concept.

MOPAC31

Simulation of Power Coupling and Wakefield in Photonic Bandgap Fibers for Dielectric Laser Acceleration

135

C.-K. Ng, R.J. England, R.J. Noble, J.E. Spencer
SLAC, Menlo Park, California, USA

Funding: Work supported by the US DOE under contract DE-AC02-76SF00515.
A photonic band gap (PBG) lattice in dielectric fiber can provide high gradient acceleration in the optical regime, where the accelerating mode is obtained from the presence of a single defect in the lattice. In this paper, we will investigate two aspects of the PBG for acceleration. First, the excitation of the accelerating mode can be achieved by directing high-power lasers from free space. Simulation using ACE3P has demonstrated that, by appropriately shaping the end of the PBG fiber, power can be coupled into the fiber using a simple laser configuration. Second, the wakefield generated by the transit of a beam through a PBG fiber will be simulated using ACE3P. The free-space, outgoing radiation spectrum and distribution of the wakefield will be evaluated and corroborated with measurements from a commercial fiber.