Correlative Optical Spectroscopy and Atom Probe Tomography
L. Rigutti
Groupe de Physique des Matériaux, UMR 6634 CNRS, University and INSA of Rouen, Normandie University, Avenue de l'Université BP12, St. Etienne du Rouvray, 76800, France
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This lecture will introduce and revise recent experimental developments on correlative laser-assisted atom probe tomography and optical spectroscopy, with a particular attention to the domain of semiconductor nanostructures. The main goal of correlative microscopy is to gain a deeper insight in materials science studies. For the materials scientist, indeed, the possibility of establishing a link between optical spectroscopic properties of a given system and the reconstruction of its 3D structure and composition by atom probe tomography yields an unprecedented insight into the complex influence of the structure on the electronic states and on the optical transitions characterizing the system. This lecture will therefore revise the different approaches by which it is possible to correlate optical spectroscopy experiments - in particular micro-photoluminescence with atom probe tomography and, possibly, with transmission electron microscopy. Dedicated sample preparation protocols and recent case studies will be reported. Finally, a perspective approach will be introduced, in which the same femtosecond laser pulse could be exploited not only for triggering ion evaporation, but also photon emission in situ in the atom probe itself.

DOI: 10.12693/APhysPolA.129.A-7
PACS numbers: 61.46.-w, 61.72.-y, 68.65.-k, 78.55.-m, 78.67.-n