A charged particle Talbot-Lau interferometer and magnetic field sensing

TL;DR

This paper demonstrates a novel electron Talbot-Lau interferometer capable of magnetic field measurement, opening pathways for sensitive magnetic sensing and potential development of larger charged particle interferometers.

Contribution

First demonstration of a three-grating electron Talbot-Lau interferometer used for magnetic field sensing, with implications for scalable charged particle interferometers.

Findings

Successfully measured magnetic fields using the interferometer

Demonstrated the device's similarity to classical Moire deflectometers

Indicated potential for scalable magnetic sensing applications

Abstract

We present the first demonstration of a three grating Talbot-Lau interferometer for electrons. As a proof of principle, the interferometer is used to measure magnetic fields. The device is similar to the classical Moire deflectometer. The possibility to extend this work to build a scaled-up charged particle deflectometer or interferometer for sensitive magnetic field sensing is indicated.