Bulletin of the American Physical Society
Fall 2022 Meeting of the APS Eastern Great Lake Section and the Michigan Section of AAPT: Pushing Boundaries in Physics and Education
Volume 67, Number 16
Friday–Saturday, October 21–22, 2022; Lawrence Technological University, Southfield, Michigan
Session E01: Poster Session
4:45 PM,
Friday, October 21, 2022
Lawrence Technological University
Room: Plex Atrium
Chair: Michael Crescimanno, Department of Physics, Youngstown State University
Abstract: E01.00019 : Measuring the phase accumulation of a changing polarization state of light*
Presenter:
amanuel jissa
(College of Wooster)
Authors:
amanuel jissa
(College of Wooster)
Cody C Leary
(College of Wooster)
larization state of a light beam is continually transformed, known as the
Pancharatnam phase. We employ an interferometer containing a BaB2O4
birefringent crystal in one arm in order to transform the polarization state
of one of the split beams before recombining and measuring the output
intensity. We show that the accumulated phase change of the light wave
is manifested by the intensity of the final beam. We present experimental
measurements along with a model for this system based on the Poincare
sphere picture of polarization state space, in which the geometric phase
is proportional to the area bounded by the polarization state space path
taken by the beam, after being closed by a geodesic on the sphere.
*College of Wooster Physics department.
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