Measurement of multipole phases in optics and electron microscopy by means of conformal transformations

Ruffato, G. and Rotunno, E. and Grillo, V. (2021) Measurement of multipole phases in optics and electron microscopy by means of conformal transformations. Il nuovo cimento C, 44 (4-5). pp. 1-4. ISSN 1826-9885

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Abstract

Conformal mappings have been recently rediscovered as a practical solution to measure physical quantities in an efficient manner by implementing a unitary transformation on structured wavefields. For instance, one of the most known is the log-pol mapping, enabling the measurement of orbital angular momentum of optical and electron vortices. We report our latest research on a new family of conformal mappings, the circular-sector transformations, applied to wavefunctions endowed with multipole phases, showing disruptive applications in optics and matter-waves physics, in particular electron microscopy. The results suggest an innovative and promising method to measure astigmatisms and electric/magnetic dipoles in a fast and direct way.

Item Type:	Article
Subjects:	500 Scienze naturali e Matematica > 530 Fisica
Depositing User:	Marina Spanti
Date Deposited:	20 Sep 2021 09:51
Last Modified:	20 Sep 2021 09:51
URI:	http://eprints.bice.rm.cnr.it/id/eprint/21356

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