Joint Institute for Nuclear Research
08.10.2025

Maksim Maksimov (ITMO) "Diffraction of massive twisted waves by circular and triangular apertures as a method for diagnosing orbital angular momentum"

The report presented a method for diagnosing the orbital angular momentum (OAM) of twisted massive waves, electrons and light ions, based on their diffraction at circular and triangular apertures in the far field.

It focused on how wave theory connects the field at the aperture with the pattern on the detector and explained why specifically the triangular geometry produces a characteristic "imprint" of the twist, allowing the value and sign of the OAM to be read from the structure of the diffraction pattern. The nature of this effect was explained, demonstrating how it translates from photonic analogs to massive particles and why it is advantageous for accelerator beams. The scope of applicability, the method's robustness across different experimental setups, the choice of apertures and other parameters were considered, and potential future research directions were discussed.

Link to watch the video on the JINR resource:
https://disk.jinr.ru/index.php/s/WNXxi8m78tfm6jS

Presentation