Nadezda Varkentina
;
Yves Auad
;
Steffi Y. Woo
;
Alberto Zobelli
;
Laura Bocher
;
Jean-Denis Blazit
;
Xiaoyan Li
;
Marcel Tencé
;
Kenji Watanabe
(National Institute for Materials Science)
;
Takashi Taniguchi
(National Institute for Materials Science)
;
Odile Stéphan
;
Mathieu Kociak
;
Luiz H. G. Tizei
Collection
Citation
Description:
(abstract)Photoluminescence Excitation spectroscopy (PLE) is crucial in understanding materials photo- physics, which play an important role in devices design and optimization. Unfortunately, PLE is handicapped by the diffraction limit when addressing the nanometric properties of matter, and no equivalent near-field spectroscopy has emerged so far. By coincidentally measuring the energy loss of a relativistic electron on optical materials (plasmonic nanoparticles, luminescent 2D materials) and their subsequent light emission, we demonstrate the possibility of making cathodolumines- cence excitation spectroscopy, a natural counterpart of PLE with a resolution better than 10 nm. The information retrieved should prove unvaluable for the understanding materials optics at the nanometer scale.
Rights:
Keyword: Optical excitations, photoluminescence, cathodoluminescence
Date published: 2022-10-07
Publisher: American Association for the Advancement of Science (AAAS)
Journal:
- Science Advances (ISSN: 23752548) vol. 8 issue. 40
Funding:
Manuscript type: Publisher's version (Version of record)
MDR DOI:
First published URL: https://doi.org/10.1126/sciadv.abq4947
Related item:
Other identifier(s):
Contact agent:
Updated at: 2025-03-01 08:30:27 +0900
Published on MDR: 2025-03-01 08:30:27 +0900
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