5 Near-Field Scanning Optical Microscope Combined with Digital …
129
three dimensions was studied with near-diffraction resolution [44]. The full scattered three-dimensional electromagnetic field of plasmonic gold nanodisk chains
fabricated by e-beam lithography was also measured using the same holography
technique [25] using single-shot hologram acquisition associated to a reconstruction
of the 3D scattering pattern of the antennas. Cross-sections of the reconstructed scattered field in different planes is shown in Fig. 5.13 (taken from the paper of Suck
et al. [25]). Although the holographic images are diffraction limited, the shape of the
Fig. 5.13 Scattered field reconstructed from a single hologram of a nanodisk chain at nonresonant
(λ = 785 nm) (a) and resonant (λ = 658 nm) (b) wavelengths, for an illumination polarized along
the long axis (y) of the nanoantenna system. Cross-sections along different planes centered on the
antenna: x–y (top), y–z (middle), and x–z (bottom). Figure taken from [25]
129
three dimensions was studied with near-diffraction resolution [44]. The full scattered three-dimensional electromagnetic field of plasmonic gold nanodisk chains
fabricated by e-beam lithography was also measured using the same holography
technique [25] using single-shot hologram acquisition associated to a reconstruction
of the 3D scattering pattern of the antennas. Cross-sections of the reconstructed scattered field in different planes is shown in Fig. 5.13 (taken from the paper of Suck
et al. [25]). Although the holographic images are diffraction limited, the shape of the
Fig. 5.13 Scattered field reconstructed from a single hologram of a nanodisk chain at nonresonant
(λ = 785 nm) (a) and resonant (λ = 658 nm) (b) wavelengths, for an illumination polarized along
the long axis (y) of the nanoantenna system. Cross-sections along different planes centered on the
antenna: x–y (top), y–z (middle), and x–z (bottom). Figure taken from [25]