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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 49, Iss. 14 — May. 10, 2010
  • pp: 2617–2621

Multichannel probes for polarization-resolved scanning near-field optical microscopy

Thierry Grosjean, Idriss A. Ibrahim, and Mathieu Mivelle  »View Author Affiliations


Applied Optics, Vol. 49, Issue 14, pp. 2617-2621 (2010)
http://dx.doi.org/10.1364/AO.49.002617


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Abstract

We propose and validate a concept of multichannel near-field fiber probe for the collection and discrimination of optical fields of orthogonal polarizations (linear, elliptic, and circular). The system is achieved by connecting to scanning near-field optical microscope fiber tips an optical stage made up of commercial polarizers, fiber couplers, and polarization controllers. Using radially polarized Bessel beams as test objects, we demonstrate the ability of a three-channel fiber tip to simultaneously and independently probe the transverse vector components of the electric field (parallel to the sample surface) and the overall transverse intensity. The polarization ratio of the near-field collection system exceeds 1:1500. The system can be implemented in collection-mode or reflection-mode near-field microscope configurations, with various kinds of probe and light source (of high or low coherence lengths) for a deeper insight of light polarization effects and vector fields at a subwavelength scale.

© 2010 Optical Society of America

OCIS Codes
(260.5430) Physical optics : Polarization
(180.4243) Microscopy : Near-field microscopy

ToC Category:
Microscopy

History
Original Manuscript: March 10, 2010
Manuscript Accepted: April 11, 2010
Published: May 4, 2010

Citation
Thierry Grosjean, Idriss A. Ibrahim, and Mathieu Mivelle, "Multichannel probes for polarization-resolved scanning near-field optical microscopy," Appl. Opt. 49, 2617-2621 (2010)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-49-14-2617

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