Atomic-like selection rules in free electron scattering
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arXiv
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866916486378946560 |
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| author | Garrigou, Simon Lourenço-Martins, Hugo |
| author_facet | Garrigou, Simon Lourenço-Martins, Hugo |
| contents | Phase-shaped electron energy-loss spectroscopy (PSEELS) measures the scattering probability of structured free electron beams by a target. Over the last decade, it was shown that this scheme can be employed to emulate polarized optical spectroscopies with electrons, and therefore to transpose macroscopic optical concepts - such as dichroism - down to the deep sub-wavelength scale. In this work, we theoretically demonstrate that PSEELS can, in fact, go way further than mimicking optics and enables to map a plethora of so far inaccessible nano-optical quantities such as the electric quadrupolar momentum. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2411_11754 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Atomic-like selection rules in free electron scattering Garrigou, Simon Lourenço-Martins, Hugo Optics Phase-shaped electron energy-loss spectroscopy (PSEELS) measures the scattering probability of structured free electron beams by a target. Over the last decade, it was shown that this scheme can be employed to emulate polarized optical spectroscopies with electrons, and therefore to transpose macroscopic optical concepts - such as dichroism - down to the deep sub-wavelength scale. In this work, we theoretically demonstrate that PSEELS can, in fact, go way further than mimicking optics and enables to map a plethora of so far inaccessible nano-optical quantities such as the electric quadrupolar momentum. |
| title | Atomic-like selection rules in free electron scattering |
| topic | Optics |
| url | https://arxiv.org/abs/2411.11754 |