4 papers
Multi-Angle Beam Scanning Transmission Electron Microscopy for Diffraction-Contrast-Free Magnetic Imaging
Akira Yasuhara, Zentaro Akase, Takumi Sannomiya
Recent development of the differential phase contrast (DPC) scanning transmission electron microscopy (STEM) technique has significantly advanced materials science supported by hig…
Electron Recoil via Sample Momentum Transfer under Optical-Mode Excitation
Akira Yasuhara, Yamato Kirii, Takumi Sannomiya
The interaction between free electrons and optical modes underlies a variety of quantum and nanoscale light-matter phenomena, yet the associated momentum exchange with the sample l…
Compressive multi-beam scanning transmission electron microscopy
Akira Yasuhara, Takumi Sannomiya, Ryoichi Horisaki
We demonstrate a multi-beam scanning transmission electron microscopy (STEM) imaging that integrates down-sampling with super-resolution image reconstruction via a compressive sens…
Semicircular-aperture illumination scanning transmission electron microscopy
Akira Yasuhara, Fumio Hosokawa, Sadayuki Asaoka +4
Scanning transmission electron microscopy (STEM) provides high-resolution visualization of atomic structures as well as various functional imaging modes utilizing phase contrast. I…