Observation of a topological phase in a noncyclic case by use of a half-sturn optical fiber.
We describe direct observation of a geometrical phase in a noncyclic case as the rotation of the plane of polarization of a linearly polarized beam of light. The beam travels down uniformly wound half-turn single-mode optical fibers with various pitch angles.
Kwon
O J
OJ
Lee
H T
HT
Lee
S B
SB
Choi
S S
SS