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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Vol. 19, Iss. 8 — Aug. 1, 2002
  • pp: 1689–1693

Precision measurement of the electromagnetic fields in the focal region of a high-numerical-aperture lens using a tapered fiber probe

S. K. Rhodes, K. A. Nugent, and A. Roberts  »View Author Affiliations


JOSA A, Vol. 19, Issue 8, pp. 1689-1693 (2002)
http://dx.doi.org/10.1364/JOSAA.19.001689


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Abstract

We present a measurement of the intensity around the focus of a N.A.-0.95 lens using a tapered optical fiber probe. An asymmetry introduced by the vector nature of the incident polarized light is evident, although it is inconsistent with that predicted theoretically by considering the magnitude squared of the electric field. The sensitivity of the probe to different components of the electromagnetic field is considered, and it is shown that the measurement is consistent with vector diffraction theory when the probe properties are taken into account.

© 2002 Optical Society of America

OCIS Codes
(050.1940) Diffraction and gratings : Diffraction
(110.0180) Imaging systems : Microscopy
(120.4820) Instrumentation, measurement, and metrology : Optical systems
(220.3630) Optical design and fabrication : Lenses

History
Original Manuscript: January 3, 2002
Revised Manuscript: April 3, 2002
Manuscript Accepted: April 9, 2002
Published: August 1, 2002

Citation
S. K. Rhodes, K. A. Nugent, and A. Roberts, "Precision measurement of the electromagnetic fields in the focal region of a high-numerical-aperture lens using a tapered fiber probe," J. Opt. Soc. Am. A 19, 1689-1693 (2002)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-19-8-1689


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References

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