2011 Particle Accelerator Conference - List of Authors (Laouar, R.)

Paper

Title

Page

Fabrication and Measurements of a Silicon Woodpile Accelerator Structure

343

C. McGuinness, E.R. Colby, R.J. England, R. Laouar, R.J. Noble, K. Soong, J.E. Spencer, Z. Wu, D. Xu
SLAC, Menlo Park, California, USA
R.L. Byer, E.A. Peralta
Stanford University, Stanford, California, USA

Funding: DOE grants: DE-AC02-76SF00515 and DE-FG03-97ER41043-II
We present results for the fabrication of a silicon woodpile accelerator structure. The structure was designed to have an accelerating mode at 3.95 μm, with a high characteristic impedance and an accelerating gradient of 530 MeV/m. The fabrication process uses standard nanofabrication techniques in a layer-by-layer process to produce a three-dimensional photonic crystal with 400 nm features. Reflection spectroscopy measurements reveal a peak spanning from three to five microns, and are show good agreement with simulations.
* Sears, PRST-AB, 11, 101301, (2008).
** Cowan, PRST-AB, 11, 011301, (2008).
*** McGuinness, J. Mod. Opt., vol. 56, is. 18, pp. 2142, (2009).
**** Lin, Nature, 394, pp. 251 (1998).

TUP276

Measurement of Thermal Dependencies of PBG Fiber Properties

1343

R. Laouar, E.R. Colby, R.J. England, R.J. Noble
SLAC, Menlo Park, California, USA

Funding: Department Of Energy
Photonic crystal fibers (PCFs) represent a class of optical fibers which have a wide spectrum of applications in the telecom and sensing industries. Currently, the Advanced Accelerator Research Department at SLAC is developing photonic bandgap particle accelerators, which are photonic crystal structures with a central defect used to accelerate electrons and achieve high longitudinal electric fields. Extremely compact and less costly than the traditional accelerators, these structures can support higher accelerating gradients and will open a new era in high energy physics as well as other fields of science. Based on direct laser acceleration in dielectric materials, the so called photonic band gap accelerators will benefit from mature laser and semiconductor industries.

THOBN4

Experiment to Demonstrate Acceleration in Optical Photonic Bandgap Structures

2067

R.J. England, E.R. Colby, R. Laouar, C. McGuinness, D. Mendez, C.-K. Ng, J.S.T. Ng, R.J. Noble, K. Soong, J.E. Spencer, D.R. Walz, Z. Wu, D. Xu
SLAC, Menlo Park, California, USA
E.A. Peralta
Stanford University, Stanford, California, USA

Funding: This work was funded by Department of Energy Grants DE-AC02-76SF00515, DE-FG06-97ER41276.
Optical scale dielectric structures offer a promising medium for high-gradient, compact, low-cost acceleration of charged particles. An experimental program is underway at the SLAC E163 facility to demonstrate acceleration in photonic bandgap structures driven by short laser pulses. We present initial experimental results, discuss structure and experimental design, and present first estimates of achievable gradient.

Slides THOBN4 [5.925 MB]

Paper	Title	Page
MOP133	Fabrication and Measurements of a Silicon Woodpile Accelerator Structure	343
	C. McGuinness, E.R. Colby, R.J. England, R. Laouar, R.J. Noble, K. Soong, J.E. Spencer, Z. Wu, D. Xu SLAC, Menlo Park, California, USA R.L. Byer, E.A. Peralta Stanford University, Stanford, California, USA
	Funding: DOE grants: DE-AC02-76SF00515 and DE-FG03-97ER41043-II We present results for the fabrication of a silicon woodpile accelerator structure. The structure was designed to have an accelerating mode at 3.95 μm, with a high characteristic impedance and an accelerating gradient of 530 MeV/m. The fabrication process uses standard nanofabrication techniques in a layer-by-layer process to produce a three-dimensional photonic crystal with 400 nm features. Reflection spectroscopy measurements reveal a peak spanning from three to five microns, and are show good agreement with simulations. * Sears, PRST-AB, 11, 101301, (2008). Cowan, PRST-AB, 11, 011301, (2008). * McGuinness, J. Mod. Opt., vol. 56, is. 18, pp. 2142, (2009). **** Lin, Nature, 394, pp. 251 (1998).

TUP276	Measurement of Thermal Dependencies of PBG Fiber Properties	1343
	R. Laouar, E.R. Colby, R.J. England, R.J. Noble SLAC, Menlo Park, California, USA
	Funding: Department Of Energy Photonic crystal fibers (PCFs) represent a class of optical fibers which have a wide spectrum of applications in the telecom and sensing industries. Currently, the Advanced Accelerator Research Department at SLAC is developing photonic bandgap particle accelerators, which are photonic crystal structures with a central defect used to accelerate electrons and achieve high longitudinal electric fields. Extremely compact and less costly than the traditional accelerators, these structures can support higher accelerating gradients and will open a new era in high energy physics as well as other fields of science. Based on direct laser acceleration in dielectric materials, the so called photonic band gap accelerators will benefit from mature laser and semiconductor industries.

THOBN4	Experiment to Demonstrate Acceleration in Optical Photonic Bandgap Structures	2067
	R.J. England, E.R. Colby, R. Laouar, C. McGuinness, D. Mendez, C.-K. Ng, J.S.T. Ng, R.J. Noble, K. Soong, J.E. Spencer, D.R. Walz, Z. Wu, D. Xu SLAC, Menlo Park, California, USA E.A. Peralta Stanford University, Stanford, California, USA
	Funding: This work was funded by Department of Energy Grants DE-AC02-76SF00515, DE-FG06-97ER41276. Optical scale dielectric structures offer a promising medium for high-gradient, compact, low-cost acceleration of charged particles. An experimental program is underway at the SLAC E163 facility to demonstrate acceleration in photonic bandgap structures driven by short laser pulses. We present initial experimental results, discuss structure and experimental design, and present first estimates of achievable gradient.
	Slides THOBN4 [5.925 MB]