This progress represents a significant step towards a completely integrated MeV-scale dielectric laser accelerator. The collaboration is led by principal investigators Prof. Robert Byer (Stanford University) and Prof. Peter Hommelhoff (Friedrich Alexander University Erlangen). Accelerator on a Chip: Grating-based Dielectric Microstructures for Laser-Driven Acceleration of Electrons PhD Dissertation Defense , Ken Soong (June 3, 2014 @ SLAC Kavli Auditorium) Particle Accelerator on a Wafer: Demonstration of Electron Acceleration and Diagnostics with Microstructures This animation shows how our accelerator on a chip uses laser light to boost electron energy. The Accelerator on a Chip International Program (AChIP), funded by the Gordon and Betty Moore Foundation in the U.S., aims to create an electron accelerator on a silicon chip. In the accelerator-on-a-chip experiments, electrons are … The Accelerator on a Chip International Program (AChIP), funded by the Gordon and Betty Moore Foundation in the U.S., aims to create an electron accelerator on a silicon chip. Electrical engineers in the accelerator physics group at TU Darmstadt have developed a design for a laser-driven electron accelerator so small it could be produced on a silicon chip… When scientists shine an infrared laser on the chip, the light interacts with those ridges and produces an electrical field that boosts the energy of the passing electrons. Byer worked with several other researchers, including Stanford University electrical engineer Jelena Vuckovic, to produce such a tool. “The ultimate goal of our Accelerator on a Chip International Program (ACHIP) is to achieve an accelerator capable of producing 1 MeV energy beams which can be a truly compact (imagine shoe-box size or even smaller) particle accelerator for medical, industrial, and scientific applications that can be widely and cheaply available.” Laser Accelerator on a Chip In an advance that could dramatically shrink particle accelerators for science and medicine, researchers used a laser to accelerate electrons at a rate 10 times higher than conventional technology in a nanostructured glass chip smaller than a grain of rice. Laser-driven particle accelerator-on-a-chip Accelerator on a Chip International Program (AChIP) aims to create an electron accelerator on a silicon chip. SLAC National Accelerator Laboratory, Menlo Park, CA, 94025. Not only does this scale down the wavelength of the source, but also all other components of the accelerator. Such chip-based electron accelerators would constitute only the front end of a tabletop XFEL; realizing such a device will also require the design of additional acceleration stages and a compact, laser-driven undulator to replace the magnetically driven behemoths in current XFELs—projects on which the laser community is also hard at work. The fundamental idea is to replace accelerator parts made of metal with glass or silicon, and to use a laser instead of a microwave generator as an energy source . To do this, metal structures are replaced with glass or silicon, and lasers instead of microwaves used to apply energy. On-chip integrated laser-driven particle accelerator. In experiments at SLAC, the chip achieved an acceleration gradient, or energy boost over a given distance, roughly 10 times higher than the SLAC linear accelerator can provide. This image, magnified 25,000 times, shows a section of an accelerator-on-a-chip.
A laser-driven accelerator engraved in silicon, however, would be easier to scale up, and multiple components could potentially fit on the same chip. The age of room-sized (and larger) colliders may be coming to an end now that researchers from Stanford have developed a nano-scale particle accelerator that fits on a single silicon chip. The gray structures focus infrared laser light (shown in yellow and purple) on … Accelerator-on-a-chip The ACHIP project aims to replace conventional radio-frequency based electron accelerators with accelerators operating with optical and near-infrared sources. Researchers believe they have developed an alternative: a laser-driven particle accelerator that fits on a silicon chip. These on-chip devices accelerate sub-relativistic electrons of initial energy 83.4 keV by 1.21 keV over 30 um, providing peak acceleration gradients of 40.3 MeV/m. On-Chip Laser Power Delivery System for Dielectric Laser Accelerators Tyler W. Hughes, Si Tan,yZhexin Zhao, Neil V. Sapra, Kenneth J. Leedle, Huiyang Deng, Yu Miao, Dylan S. Black, Olav Solgaard, James S. Harris, Jelena Vuckovic, Robert L. Byer, and Shanhui Fan Stanford University, Stanford, CA 94305 Yun Jo Lee and Minghao Qi
People The Moore Foundation funded ACHIP collaboration includes world-renowned experts in accelerator physics, laser physics, nanophotonics and nanofabrication.
However, similar to conventional RF accelerators, an automatic and