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Journal Articles Optics Communications Year : 2000

Analysis of the influence of the tip vibration in the formation of images in apertureless scanning near-field optical microscopy

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Abstract

The theoretical influence of the vertical vibration of the tip is investigated to calculate the images of a quartz grating in an apertureless scanning near-field optical microscope configuration, a realistic model is used for the simulation of the lock-in detection. It is shown that the output signal issued from the lock-in detection cannot be simply approximated by a mere difference between the intensities of the field between the top and bottom positions of the tip oscillation. Several modes of the lock-in detection, amplitude and phase, X and Y channels, at the fundamental frequency or for the following harmonics, though all leading to images containing high spatial frequencies of the grating, show significant differences that can induce misinterpretations in specific cases.

Dates and versions

hal-02292380 , version 1 (19-09-2019)

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Pierre-Michel Adam, Jean-Louis Bijeon, Geoffrey Viardot, Pascal Royer. Analysis of the influence of the tip vibration in the formation of images in apertureless scanning near-field optical microscopy. Optics Communications, 2000, 174 (1-4), pp.91-98. ⟨10.1016/S0030-4018(99)00700-2⟩. ⟨hal-02292380⟩

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