| Autor: |
Robert L. Byer, Logan Su, Kenneth J. Leedle, Ki Youl Yang, Olav Solgaard, Yu Miao, Dylan S. Black, Dries Vercruysse, R. J. England, Neil V. Sapra, Jelena Vuckovic |
| Rok vydání: |
2020 |
| Předmět: |
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| Zdroj: |
Integrated Optics: Devices, Materials, and Technologies XXIV. |
| DOI: |
10.1117/12.2546237 |
| Popis: |
We present the first demonstration of a waveguide-integrated dielectric laser accelerator. This structure and associated grating coupler are designed using a gradient-based inverse design approach. A waveguide is directly interfaced with an accelerator structure which is patterned with sub-wavelength features to produce near-fields phase-matched to electrons travelling through a 250 nm gap in the structure. We have experimentally demonstrated these waveguide-integrated accelerators by showing acceleration of subrelativistic electrons of initial energy 83.5 keV. We observe a maximum energy modulation of 1.19 keV over 30 μm. These results represent a significant step toward scalable and integrable on-chip dielectric laser accelerators for applications in ultrafast, medical, and high-energy technologies. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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