Double-slit experiment with multiple vortex beams

Mairikena Aili, Pan Liu, Xiao Xiao Chen, Qing Yuan Wu, Zhe Meng, Jia Zhi Yang, Jian Li, An Ning Zhang*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

The orbital angular momentum (OAM) of a vortex beam has already found significant potential applications in both quantum and classical communication systems. In this study, a realization of a double-slit experiment using a Sagnac interferometer is conducted for the detection and discrimination of vortex beams. Based on the advantages of convenient and adjustable double-slit parameters of our device, we detected multiple vortex beams carrying different OAM modes and superpositions of OAM modes under laser and single-photon illumination. We also analyzed the influence of the slit parameters on the interference pattern of the vortex beams. The results show that by comparing the differences in these interference patterns, we can achieve the measurement of topological charge and complete distinction of OAM states carried by the vortex beams. Our study contributes to coding research on laser and quantum communication.

Original languageEnglish
Article number013521
JournalPhysical Review A
Volume109
Issue number1
DOIs
Publication statusPublished - Jan 2024

Fingerprint

Dive into the research topics of 'Double-slit experiment with multiple vortex beams'. Together they form a unique fingerprint.

Cite this