Precision measurement of the electromagnetic fields in the focal region of a high-numerical-aperture lens using a tapered fiber probe
AuthorRhodes, SK; Nugent, KA; Roberts, A
Source TitleJournal of the Optical Society of America. A, Optics and image science
PublisherOPTICAL SOC AMER
Document TypeJournal Article
CitationsRhodes, S. K., Nugent, K. A. & Roberts, A. (2002). Precision measurement of the electromagnetic fields in the focal region of a high-numerical-aperture lens using a tapered fiber probe. JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION, 19 (8), pp.1689-1693. https://doi.org/10.1364/JOSAA.19.001689.
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C1 - Journal Articles Refereed
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.
KeywordsOptics and Opto-electronic Physics ; Physical Sciences
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