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Super-resolution Optical Spectroscopy of Nanoscale Emitters within a Photonic Atom Probe
Enrico Di Russo1, Pradip Dalapati1, Jonathan Houard1
1UNIROUEN, CNRS, Groupe de Physique des Matériaux, Normandie Université, 76000 Rouen, France.
Nano Letters
|November 25, 2020
Summary
Atom Probe Tomography (APT) advances with photonic atom probe (PAP) for 3D chemical mapping. This technique correlates optical signatures with atomic-scale composition, enabling new insights into materials science.
Area of Science:
- Materials Science
- Physics
- Chemistry
Background:
- Atom Probe Tomography (APT) provides atomic-scale 3D chemical composition analysis.
- Existing methods lack the ability to correlate optical properties with nanoscale chemical information.
Purpose of the Study:
- To introduce the photonic atom probe (PAP) as an evolution of APT.
- To demonstrate the correlation of photoluminescence with chemical and structural data.
- To enable the study of light emitters at the nanoscale.
Main Methods:
- Utilizing the photonic atom probe (PAP) technique.
- In situ and operando detection of photoluminescence signals.
- Analysis of evaporated ions for chemical and structural information.
Main Results:
- Successful correlation of optical signatures with chemical composition at the nanoscale.
- Discrimination and interpretation of spectral signatures from different light emitters.
- Achieved resolution of optical signatures within 20 nm, surpassing laser diffraction limits.
Conclusions:
- The photonic atom probe (PAP) integrates optical and chemical analysis at the atomic scale.
- This technique offers new possibilities for studying low-dimensional systems, defects, and optoelectronic devices.
- PAP enhances the understanding of light-emitting phenomena in materials.
Keywords:
Atomic Scale MicroscopyHeterostructuresOptical SpectroscopyQuantum Light EmittersSemiconductorsSuper-resolutionMore Related Videos
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