Can a Programmable Phase Plate Serve as an Aberration Corrector in the Transmission Electron Microscope (TEM)?

نویسندگان

چکیده

Current progress in programmable electrostatic phase plates raises questions about their usefulness for specific applications. Here, we explore different designs such with the goal of correcting spherical aberration Transmission Electron Microscope (TEM). We numerically investigate whether a plate could provide down to 1 $\r{A}$ngstr\"om spatial resolution on conventional uncorrected TEM. Different design aspects (fill-factor, pixel pattern, symmetry) were evaluated understand effect electron probe size and current density. Some proposed show ($d_{50}$) 0.66$\r{A}$, proving that it should be possible correct well past 1\AA~ limit using consisting an array shifting elements.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Effect of a physical phase plate on contrast transfer in an aberration-corrected transmission electron microscope.

In this theoretical study we analyze contrast transfer of weak-phase objects in a transmission electron microscope, which is equipped with an aberration corrector (C(s)-corrector) in the imaging lens system and a physical phase plate in the back focal plane of the objective lens. For a phase shift of pi/2 between scattered and unscattered electrons induced by a physical phase plate, the sine-ty...

متن کامل

An x-ray photoemission electron microscope using an electron mirror aberration corrector for the study of complex materials

A new ultrahigh-resolution photoemission electron microscope called PEEM3 is being developed at the advanced light source (ALS). An electron mirror combined with a sophisticated magnetic beam separator is used to provide simultaneous correction of spherical and chromatic aberrations. Installed on an elliptically polarized undulator beamline, PEEM3 will be operated with very high spatial resolut...

متن کامل

An Aberration Corrected (S)TEM Microscope for Nanoresearch

S. Kujawa, B. Freitag, D. Hubert FEI Company, Eindhoven, The Netherlands [email protected] Introduction The continued focus on improving materials, combined with the fact that it is now commonly understood that material properties are affected by characteristics at the atomic level, give rise to the need to characterize and image at the best resolutions possible. The (Scanning) Transmiss...

متن کامل

Off-axis electron holography in an aberration-corrected transmission electron microscope.

Electron holography allows the reconstruction of the complete electron wave, and hence offers the possibility of correcting aberrations. In fact, this was shown by means of the uncorrected CM30 Special Tübingen transmission electron microscope (TEM), revealing, after numerical aberration correction, a resolution of approximately 0.1 nm, both in amplitude and phase. However, it turned out that t...

متن کامل

An electron microscope for the aberration-corrected era.

Improved resolution made possible by aberration correction has greatly increased the demands on the performance of all parts of high-end electron microscopes. In order to meet these demands, we have designed and built an entirely new scanning transmission electron microscope (STEM). The microscope includes a flexible illumination system that allows the properties of its probe to be changed on-t...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Microscopy and Microanalysis

سال: 2023

ISSN: ['1435-8115', '1431-9276']

DOI: https://doi.org/10.1017/s1431927622012260