Time-resolved cathodoluminescence in an ultrafast transmission electron microscope

Ultrafast transmission electron microscopy (UTEM) combines sub-picosecond time-resolution with the versatility of TEM spectroscopies. It allows us to study the ultrafast materials' response using complementary techniques. However, until now, time-resolved cathodoluminescence was unavailable in...

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Bibliographic Details
Published in:Applied physics letters 2021-08, Vol.119 (6)
Main Authors: Meuret, S., Tizei, L. H. G., Houdellier, F., Weber, S., Auad, Y., Tencé, M., Chang, H.-C., Kociak, M., Arbouet, A.
Format: Article
Language:English
Subjects:
Applied physics
Cathodoluminescence
Condensed Matter
Diamonds
Electron microscopes
Emission analysis
Emitters
Instrumentation and Detectors
Materials Science
Microscopes
Nanostructure
Optics
Physics
Spatial resolution
Temporal resolution
Time measurement
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Summary:Ultrafast transmission electron microscopy (UTEM) combines sub-picosecond time-resolution with the versatility of TEM spectroscopies. It allows us to study the ultrafast materials' response using complementary techniques. However, until now, time-resolved cathodoluminescence was unavailable in UTEM. In this paper, we report time-resolved cathodoluminescence measurements in an ultrafast transmission electron microscope. We mapped the spatial variations of the emission dynamics from nano-diamonds with a high density of NV centers with a 12 nm spatial resolution and sub-nanosecond temporal resolution. This development will allow us to study the emission dynamics from quantum emitters with a unique spatiotemporal resolution and benefit from the wealth of complementary signals provided by transmission electron microscopes. It will further expand the possibilities of ultrafast transmission electron microscopes, paving the way to the investigation of the quantum aspects of an electron/sample interaction.
ISSN:0003-6951
1077-3118
DOI:10.1063/5.0057861