Fabrication and Characterization of Woodpile Structures for Direct Laser Acceleration
An eight and nine layer three dimensional photonic crystal with a defect designed specifically for accelerator applications has been fabricated. The structures were fabricated using a combination of nanofabrication techniques, including low pressure chemical vapor deposition, optical lithography, and chemical mechanical polishing. Limits imposed by the optical lithography set the minimum feature size to 400 nm, corresponding to a structure with a bandgap centered at 4.26 {micro}m. Reflection spectroscopy reveal a peak in reflectivity about the predicted region, and good agreement with simulation is shown. The eight and nine layer structures will be aligned and bonded together to form the complete seventeen layer woodpile accelerator structure.
- Research Organization:
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC02-76SF00515
- OSTI ID:
- 992903
- Report Number(s):
- SLAC-PUB-14228; TRN: US1007919
- Journal Information:
- AIP Conf.Proc.1299:439-444,2010, Conference: Presented at 14th Advanced Accelerator Concepts Workshop, Annapolis, Maryland, 13-19 Jun 2010
- Country of Publication:
- United States
- Language:
- English
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