A Versatile Side Entry Laser System for Scanning Transmission Electron Microscopy

Ondrej Dyck, Olugbenga Olunloyo, Kai Xiao, Benjamin Wolf, Thomas M. Moore, Andrew R. Lupini, Stephen Jesse

Research output: Contribution to journalArticlepeer-review

Abstract

This study presents the design and implementation of a side entry laser system designed for an ultrahigh vacuum scanning transmission electron microscope. This system uses a versatile probe design enclosed in a vacuum envelope such that parts can be easily aligned, modified or exchanged without disturbing the vacuum. The system uses a mirror mounted on the sample holder such that the sample can be illuminated without being tilted. Notably the mirror can be removed and replaced with an ablation target and a higher power laser used to ablate material directly onto the sample. The authors argue that new capabilities hold the potential to transform the electron microscope from an analysis tool toward a more flexible synthesis system, where atomic scale fabrication and atom-by-atom experiments can be performed.

Original languageEnglish
JournalAdvanced Materials Technologies
DOIs
StateAccepted/In press - 2025

Keywords

  • atomic manipulation
  • in situ processing
  • laser
  • laser evaporation
  • scanning transmission electron microscope

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