Radially Polarized Light for Detection and Nanolocalization of Dielectric Particles on a Planar Substrate
نویسندگان
چکیده
منابع مشابه
Radially polarized light for detection and nanolocalization of dielectric particles on a planar substrate.
A fast noninvasive method based on scattering from a focused radially polarized light to detect and localize subwavelength nanoparticles on a substrate is presented. The technique relies on polarization matching in the far field between scattered and spurious reflected fields. Results show a localization uncertainty of ≈10^{-4}λ^{2} is possible for a particle of area ≈λ^{2}/16. The effect of si...
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2015
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.114.103903