Development of a Mach-Zehnder type electron interferometer on a 1.2-MV field-emission transmission electron microscope. (15th July 2020)

• Record Type: Journal Article
• Authors: Akashi, Tetsuya; Takahashi, Yoshio; Harada, Ken
• Is Part Of: Microscopy. Volume 69:Number 6(2020)
• Page Start: 411
• Page End: 416
• Publication Date: 2020-07-15
• Subjects: Mach-Zehnder interferometer -- amplitude-division interferometer -- electron interferometer -- 1.2-MV field-emission transmission electron microscope; Microscopy -- Periodicals; 502.825
• DOI: 10.1093/jmicro/dfaa040
• Languages: English
• ISSNs: 2050-5698

Abstract

Abstract: We have developed an amplitude-division type Mach-Zehnder electron interferometer (MZ-EI). The developed MZ-EI is composed of single crystals corresponding to amplitude-division beam splitters, lenses corresponding to mirrors and an objective aperture. The spacings and azimuth angles of interference fringes can be controlled by single crystal materials and their orientations and by diffraction spots selected by the objective aperture. We built the MZ-EI on a 1.2-MV field-emission transmission electron microscope and tested its performance. Results showed that interference fringes were created for various spacings and azimuth angles, which demonstrates the practicability of the MZ-EI as an amplitude-division type electron interferometer.