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Phys. Rev. Lett. 85, 294–297 (2000)

Local Observations of Phase Singularities in Optical Fields in Waveguide Structures

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M. L. M. Balistreri, J. P. Korterik, L. Kuipers, and N. F. van Hulst
Applied Optics Group, MESA Research Institute and Department of Applied Physics, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands

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Received 17 March 2000; published in the issue dated 10 July 2000

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The phase evolution of light in an optical waveguide structure has for the first time been visualized with subwavelength resolution using a novel heterodyne interferometric photon scanning tunneling microscope. Phase singularities in the optical field of the waveguide have been observed. The phase singularities of charge one appear at locations where the modal field amplitude vanishes, due to the interference of various modes in the waveguide. Excellent agreement of the data with calculations has been obtained.

© 2000 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.85.294
DOI:
10.1103/PhysRevLett.85.294
PACS:
42.25.Bs, 07.60.Ly, 07.79.Fc, 42.25.Hz

See Also

Comment: Brian Vohnsen and Sergey I. Bozhevolnyi, Comment on “Local Observations of Phase Singularities in Optical Fields in Waveguide Structures”, Phys. Rev. Lett. 87, 259401 (2001).

Publisher's Note: Brian Vohnsen and Sergey I. Bozhevolnyi, Publisher's Note: Comment on “Local Observations of Phase Singularities in Optical Fields in Waveguide Structures” [Phys. Rev. Lett. 87, 259401 (2001)], Phys. Rev. Lett. 87, 269901 (2001).

Reply: Niek van Hulst, Marcello Balistreri, Jeroen Korterik, and Laurens Kuipers, van Hulst et al. Reply:, Phys. Rev. Lett. 87, 259402 (2001).

 
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