Design of an electron microscope phase plate using a focused continuous-wave laser

TL;DR

This paper introduces a novel Zernike phase contrast electron microscope that employs a focused laser to convert phase images into visible images, supported by quantum theory and cavity enhancement techniques.

Contribution

It presents a new design for an electron microscope phase plate using a focused laser, combining relativistic quantum theory and resonant cavity methods.

Findings

Quantum theory of laser-induced phase shift derived

Resonant cavities can significantly enhance laser intensity

Potential applications in biology and materials science

Abstract

We propose a Zernike phase contrast electron microscope that uses an intense laser focus to convert a phase image into a visible image. We present the relativistic quantum theory of the phase shift caused by the laser-electron-interaction, study resonant cavities for enhancing the laser intensity, and discuss applications in biology, soft materials science, and atomic and molecular physics.