The profiles of an optical vortex with an asymmetric defect were investigated around at the focal point. Its rotation depending on only the sign of the topological charge was observed as a berry phase effect.
© 2006 Optical Society of America
J. Hamazaki, Y. Mineta, and R. Morita, "Observation of Berry Phase Effect of Optical Vortex with an Asymmetric Defect," in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies, Technical Digest (CD) (Optical Society of America, 2006), paper JThC8.
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