Young's double-slit experiment with undulator vortex radiation in the photon-counting regime.

ABSTRACT: Young's double-slit interference experiments with undulator vortex radiation were conducted, focusing on photon-counting regime. To isolate the second harmonic radiation in the ultraviolet range emitted from the helical undulator and achieve successful counting measurements, an ultranarrow bandpass filter was utilized under an extremely low-current mode of the electron storage ring. It was observed that the photon spots on the detector, after passing through the double slits, appeared to be randomly distributed. However, upon integrating these photon spots, it was confirmed that interference fringes with characteristic features of optical vortices, such as dark and broken/distorted stripes in the center, were formed. The reproducibility of these interference fringes was confirmed by calcul

SUBMITTER: Wada SI 

PROVIDER: S-EPMC10752875 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature