Near-field optical and atomic force constraints for superresolution 3D deconvolution in far-field optical microscopy

2000 ◽  
Author(s):  
Noel Axelrod ◽  
Anna Radko ◽  
Nissim Ben-Yosef ◽  
Artium Khatchatouriants ◽  
Millet Treinin ◽  
...  
Keyword(s):  
Optical Microscopy ◽  
Near Field ◽  
Far Field ◽  
Atomic Force

Near-field optical imaging of unstained bacteria: comparison with normal atomic force and far-field optical microscopy in air and aqueous media

1998 ◽  
Vol 71 (1-4) ◽  
pp. 321-325 ◽  
Author(s):  
Nily Ben-Ami ◽  
Anna Radko ◽  
Udi Ben-Ami ◽  
Klony Lieberman ◽  
Zvi Rothman ◽  
...  
Keyword(s):  
Optical Imaging ◽  
Optical Microscopy ◽  
Near Field ◽  
Aqueous Media ◽  
Far Field ◽  
Atomic Force

Atomic Force and Scanning Near-Field Optical Microscopy Study of Carbocyanine Dye J-aggregates

2014 ◽  
Vol 10 (5) ◽  
pp. 700-704 ◽  
Author(s):  
V.V. Prokhorov ◽  
M.G. Petrova ◽  
N.N. Kovaleva ◽  
E.I. Demikhov
Keyword(s):  
Optical Microscopy ◽  
Near Field ◽  
Microscopy Study ◽  
Atomic Force ◽  
Carbocyanine Dye ◽  
J Aggregates

scholarly journals k-space imaging of the eigenmodes of sharp gold tapers for scanning near-field optical microscopy

2013 ◽  
Vol 4 ◽  
pp. 603-610 ◽  
Author(s):  
Martin Esmann ◽  
Simon F Becker ◽  
Bernard B da Cunha ◽  
Jens H Brauer ◽  
Ralf Vogelgesang ◽  
...  
Keyword(s):  
Spatial Frequency ◽  
Optical Microscopy ◽  
Frequency Domain ◽  
Near Field ◽  
Higher Order ◽  
Far Field ◽  
Radiation Patterns ◽  
Background Ratio ◽  
Higher Order Modes ◽  
Spatial Frequency Domain

We investigate the radiation patterns of sharp conical gold tapers, which were designed as adiabatic nanofocusing probes for scanning near-field optical microscopy (SNOM). Field calculations show that only the lowest order eigenmode of such a taper can reach the very apex and thus induce the generation of strongly enhanced near-field signals. Higher-order modes are coupled into the far field at finite distances from the apex. Here, we demonstrate experimentally how to distinguish and separate between the lowest and higher-order eigenmodes of such a metallic taper by filtering in the spatial frequency domain. Our approach has the potential to considerably improve the signal-to-background ratio in spectroscopic experiments at the nanoscale.

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