Journal
OPTICS LETTERS
Volume 40, Issue 18, Pages 4344-4347Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.40.004344
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Funding
- Air Force Office of Scientific Research (AFOSR) [FA9550-14-1-0190]
- U.S. Department of Energy (DOE) [DE-FG02-13ER41970]
- Div Of Electrical, Commun & Cyber Sys
- Directorate For Engineering [1542152] Funding Source: National Science Foundation
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We present the demonstration of high-gradient laser acceleration and deflection of electrons with silicon dual-pillar grating structures using both evanescent inverse Smith-Purcell modes and coupled modes. Our devices accelerate subrelativistic 86.5 and 96.3 keV electrons by 2.05 keV over 5.6 mu m distance for accelerating gradients of 370 MeV/m with a 3 nJ mode-locked Ti:sapphire laser. We also show that dual pillars can produce uniform accelerating gradients with a coupled-mode field profile. These results represent a significant step toward making practical dielectric laser accelerators for ultrafast, medical, and high-energy applications. (C) 2015 Optical Society of America
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