Wavefront transfer from light wave to electron wave

2017 Fiscal Year Final Research Report

• Project/Area Number: 15H01995
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Nanostructural physics
• Research Institution: Tohoku University
• Principal Investigator: Sato Shunichi 東北大学, 多元物質科学研究所, 教授 (30162431)
• Co-Investigator(Renkei-kenkyūsha): NAKAMURA TAKAHIRO 東北大学, 多元物質科学研究所, 准教授 (50400429) ; KOZAWA YUICHI 東北大学, 多元物質科学研究所, 准教授 (90509126) ; UESUGI YUUKI 東北大学, 多元物質科学研究所, 助教 (60780682)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 波面 / レーザー / 電子波 / 光波

Outline of Final Research Achievements

This research aimed to establish a basic technology to transfer the wavefront from light wave to electron wave by using wavefront control techniques developed in the field of light. The wavefront transfer from light wave to electron wave was conducted by a hologram fabricated by light beams, for which a new technique was developed to precisely control the wavefront and intensity distributions of light wave. These techniques were applied to laser micro-processing of a hologram used for the generation of an electron vortex. Because this hologram contains a phase modulation, which is a unique feature of this hologram, improvement of the conversion efficiency to electron wave is expected.

Free Research Field

光工学