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...

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Main Authors: Shin-Ichi Wada, Hiroyuki Ohta, Atsushi Mano, Yoshifumi Takashima, Masaki Fujimoto, Masahiro Katoh
Format: Article
Language:English
Published: Nature Portfolio 2023-12-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-023-49825-4
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author Shin-Ichi Wada
Hiroyuki Ohta
Atsushi Mano
Yoshifumi Takashima
Masaki Fujimoto
Masahiro Katoh
author_facet Shin-Ichi Wada
Hiroyuki Ohta
Atsushi Mano
Yoshifumi Takashima
Masaki Fujimoto
Masahiro Katoh
author_sort Shin-Ichi Wada
collection DOAJ
description 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 calculating the optical path difference for the optical vortex reaching the double slits, as well as the optical path difference resulting from normal double-slit interference. Consequently, these findings indicate that even in the state of a single photon, the radiation emitted spontaneously by a high-energy electron in spiral motion possesses the nature of an optical vortex, characterized by a spiral wavefront.
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spelling doaj.art-3c1a273e9d8a495fac71d327fc11f6092024-03-05T19:13:28ZengNature PortfolioScientific Reports2045-23222023-12-011311810.1038/s41598-023-49825-4Young’s double-slit experiment with undulator vortex radiation in the photon-counting regimeShin-Ichi Wada0Hiroyuki Ohta1Atsushi Mano2Yoshifumi Takashima3Masaki Fujimoto4Masahiro Katoh5Graduate School of Advanced Science and Engineering, Hiroshima UniversityFaculty of Science, Hiroshima UniversitySynchrotron Radiation Research Center, Nagoya UniversitySynchrotron Radiation Research Center, Nagoya UniversitySynchrotron Radiation Research Center, Nagoya UniversityGraduate School of Advanced Science and Engineering, Hiroshima UniversityAbstract 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 calculating the optical path difference for the optical vortex reaching the double slits, as well as the optical path difference resulting from normal double-slit interference. Consequently, these findings indicate that even in the state of a single photon, the radiation emitted spontaneously by a high-energy electron in spiral motion possesses the nature of an optical vortex, characterized by a spiral wavefront.https://doi.org/10.1038/s41598-023-49825-4
spellingShingle Shin-Ichi Wada
Hiroyuki Ohta
Atsushi Mano
Yoshifumi Takashima
Masaki Fujimoto
Masahiro Katoh
Young’s double-slit experiment with undulator vortex radiation in the photon-counting regime
Scientific Reports
title Young’s double-slit experiment with undulator vortex radiation in the photon-counting regime
title_full Young’s double-slit experiment with undulator vortex radiation in the photon-counting regime
title_fullStr Young’s double-slit experiment with undulator vortex radiation in the photon-counting regime
title_full_unstemmed Young’s double-slit experiment with undulator vortex radiation in the photon-counting regime
title_short Young’s double-slit experiment with undulator vortex radiation in the photon-counting regime
title_sort young s double slit experiment with undulator vortex radiation in the photon counting regime
url https://doi.org/10.1038/s41598-023-49825-4
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