Lorenzo Viani

ORCID: 0000-0003-1762-8147
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About
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Research Areas
  • Near-Field Optical Microscopy
  • Random lasers and scattering media
  • Advanced Fluorescence Microscopy Techniques
  • Optical Coatings and Gratings
  • Advanced Electron Microscopy Techniques and Applications
  • Orbital Angular Momentum in Optics
  • Digital Holography and Microscopy

University of Modena and Reggio Emilia
2022-2024

Istituto Nanoscienze
2024

By means of numerical simulations, we demonstrate the innovative use computational ghost imaging in transmission electron microscopy to retrieve images with a resolution that overcomes limitations imposed by coherent aberrations. The method requires measuring intensity on single pixel detector series structured illuminations. success technique is improved if probes are made resemble sample and patterns cover area interest evenly. using simple 8 electrode device as specific example, twofold...

10.1103/physrevlett.133.123801 article EN cc-by Physical Review Letters 2024-09-18

While transmission electron microscopes (TEM) can achieve a much higher resolution than optical microscopes, they face challenges of damage to samples during the high energy processes involved. Here, we explore using computational ghost imaging techniques in microscopy reduce total required intensity. The technological lack equivalent high-resolution, spatial light modulator for electrons means that different approach needs be pursued. To this end, show beam shaping technique based on use...

10.48550/arxiv.2204.09997 preprint EN cc-by arXiv (Cornell University) 2022-01-01

By means of numerical simulations, we demonstrate the innovative use computational ghost imaging in transmission electron microscopy to retrieve images with a resolution that overcomes limitations imposed by coherent aberrations. The method requires measuring intensity on single pixel detector series structured illuminations. success technique is improved if probes are made resemble sample and patterns cover area interest evenly. using simple 8 electrode device as specific example, 2-fold...

10.48550/arxiv.2401.01898 preprint EN cc-by arXiv (Cornell University) 2024-01-01

Abstract Tuneable phase plates for free electrons are a highly active area of research. However, their widespread implementation, similar to that spatial light modulators in optics, has been hindered by both conceptual and technical challenges. A specific challenge involves the need minimize obstruction electron beam supporting films electrodes. Here, we describe numerical analytical mathematical frameworks three-dimensional stacks can be used provide near-arbitrary shaping with minimal obstruction.

10.1093/mam/ozae108 article EN cc-by Microscopy and Microanalysis 2024-11-26

While transmission electron microscopes (TEM) can achieve a much higher resolution than optical microscopes, they face challenges of damage to samples during the high energy processes involved. Here, we explore using computational ghost imaging techniques in microscopy reduce total required intensity. The technological lack equivalent high-resolution, spatial light modulator for electrons means that different approach needs be pursued. To this end, show beam shaping technique based on use...

10.5281/zenodo.6637570 article EN cc-by Zenodo (CERN European Organization for Nuclear Research) 2022-04-21
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