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Far‐field emission of a tapered optical fibre tip: a theoretical analysis
Author(s) -
Drezet A.,
Woehl J. C.,
Huant S.
Publication year - 2001
Publication title -
journal of microscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.569
H-Index - 111
eISSN - 1365-2818
pISSN - 0022-2720
DOI - 10.1046/j.1365-2818.2001.00797.x
Subject(s) - conical surface , optics , radius , physics , field (mathematics) , maxwell's equations , aperture (computer memory) , boundary value problem , transmission (telecommunications) , near and far field , optical fiber , boundary (topology) , geometry , classical mechanics , telecommunications , mathematics , mathematical analysis , quantum mechanics , acoustics , computer security , computer science , pure mathematics
The far‐field transmission pattern of a tapered optical tip with small aperture (radius ∼ < 40 nm) is modelled by solving Maxwell's equations in the radiation zone with boundary conditions appropriate to the conical geometry. The model is able to reproduce the large differences between the S and P polarizations observed previously in the emission profile of such a tip [Obermüller and Karrai. Appl. Phys. Lett . (1995) 67 , 3408].