Related Experiment Video
Updated: Jan 8, 2026

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
Published on: September 5, 2019
Arbitrary polarization control with a segmented APPLE-II undulator
Kento Inaba1, Yoshiyuki Ohtsubo1, Akane Agui1
1NanoTerasu Center, National Institutes for Quantum Science and Technology (QST), Sendai, Miyagi 980-8572, Japan.
Abstract:
A newly developed four-segmented APPLE-II undulator enables arbitrary polarization control in the soft to tender X-ray region. The undulator is installed at NanoTerasu BL13U, aiming for X-ray absorption spectroscopy over a wide energy range, 180-3000 eV, with versatile photon polarizations. By adjusting the phase difference of the synchrotron radiation using electromagnetic phase shifters, arbitrary orientations of linear polarization were obtained from left and right circularly polarized radiation. Elliptically polarized radiation was also generated from vertical and horizontal linearly polarized radiation. In addition, the ellipticity angles were successfully controlled. Circularly polarized radiation in the tender X-ray region is considered to be achieved by utilizing the third harmonic. Methods and performance of polarization control of the segmented APPLE-II undulator using the phase shifters are presented.
More Related Videos
09:00Experimental Methods for Spin- and Angle-Resolved Photoemission Spectroscopy Combined with Polarization-Variable Laser
Published on: June 28, 2018
14:18Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements
Published on: February 28, 2016
Related Concept Videos
Group Polarization
Dielectric Polarization in a Capacitor
¹³C NMR: Distortionless Enhancement by Polarization Transfer (DEPT)
Insensitive Nuclei Enhanced by Polarization Transfer (INEPT)