Introduction
Ultrafast electron microscopy station enables studies of structural dynamics in solid-state and biological systems with nanometer- and sub-picosecond spatiotemporal resolution. UEM facilities (ultrafast TEM and SEM) integrate the cutting-edge technologies of ultrashort laser and electron microscopy to provide ultrafast imaging, diffraction, energy spectroscopy, and photon-induced near-field electron microscopy with high spatiotemporal resolution. The main focus of ultrafast electron microscopy station is the development and innovation of UEM instrumentations and mythologies, thereby providing world-class service to both national and international users, and enabling discoveries of new non-equilibrium physical phenomena and mechanisms in various fields of research in matter science through unprecedented space-time-energy-momentum -resolved experiments.
Parameter
| Parameter | Value |
| In-situ specimen temperature range | 14.3-1200 K |
| Spatial resolution | 1.977 Å |
| Temporal resolution | 312.30 fs |
| Electron pulse duration | 260.01 fs |
| Energy resolution | 1.5 eV |
| Spatial resolution at 20K | 20 K-2.356 Å-0.34×10-3nm |
Characteristic
The instrument developed in this station has demonstrated the following properties: high temporal resolution (< 320 fs FWHM), high spatial resolution (< 2 Å), and wide in-situ temperature range (14-1200 K).
Contact
Jun Li, E-mail: junli@iphy.ac.cn
