Prospects for versatile phase manipulation in the TEM: beyond aberration correction
arXiv:1504.07294 · doi:10.1016/j.ultramic.2014.10.007
Abstract
In this paper we explore the desirability of a transmission electron microscope in which the phase of the electron wave can be freely controlled. We discuss different existing methods to manipulate the phase of the electron wave and their limitations. We show how with the help of current techniques the electron wave can already be crafted into specific classes of waves each having their own peculiar properties. Assuming a versatile phase modulation device is feasible, we explore possible benefits and methods that could come into existence borrowing from light optics where so-called spatial light modulators provide programmable phase plates for quite some time now. We demonstrate that a fully controllable phase plate building on Harald Rose's legacy in aberration correction and electron optics in general would open an exciting field of research and applications.
9 pages, 4 figures, special Ultramicroscopy issue for PICO2015 conference
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Cited by in corpus (8)
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- Generation of electron vortex beams with over 1000 orbital angular momentum quanta using a tuneable electrostatic spiral phase plate
- Unitary Two-State Quantum Operators Realized By Quadrupole Fields in the Electron Microscope
- Demonstration of a 2x2 programmable phase plate for electrons
- Can a Programmable Phase Plate Serve as an Aberration Corrector in the Transmission Electron Microscope (TEM)?