تقرير
Electrostatic interference control of a high-energy coherent electron beam using a three-element Boersch phase shifter
| العنوان: | Electrostatic interference control of a high-energy coherent electron beam using a three-element Boersch phase shifter |
|---|---|
| المؤلفون: | Thakkar, Pooja, Guzenko, Vitaliy A., Lu, Peng-Han, Dunin-Borkowski, Rafal E., Abrahams, Jan Pieter, Tsujino, Soichiro |
| سنة النشر: | 2024 |
| المجموعة: | Physics (Other) |
| مصطلحات موضوعية: | Physics - Applied Physics |
| الوصف: | In contrast to static holographic phase shifters, which are restricted to specific electron beam energies and microscope settings, Boersch phase shifters are promising for creating programmable arrays for generating two- and three-dimensional electron beam patterns. We recently demonstrated a three-element Boersch phase shifter device [Thakkar et al., J. Appl. Phys. 128 (2020), 134502], which was fabricated by electron beam lithography and is compatible with up-scaling. However, it suffers from parasitic beam deflection and resulting cross-talk. Here, we report a five-layer phase shifter device, which is based on a metal-insulator-metal-insulator-metal structure (as originally envisioned by Boersch) that reduces cross-talk. We demonstrate a three-element Boersch phase shifter that shows minimal beam deflection of voltage-controlled three-electron-beam interference patterns in a transmission electron microscope operated at 200 keV. The feasibility of using such multi-element phase shifter arrays is discussed. Comment: 6 pages, 9 figures |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2407.06554 |
| رقم الأكسشن: | edsarx.2407.06554 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |