Near-field optical microscope
Local Probe Microscopy
Quizzed article REF: P895 V3
Near-field optical microscope
Local Probe Microscopy

Authors : Agnès PIEDNOIR, David ALBERTINI

Publication date: June 10, 2023, Review date: November 19, 2024 | Lire en français

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4. Near-field optical microscope

Interested readers may also consult the specialized article [P 862] .

4.1 Principles of the optical near-field microscope

The spatial resolution limit achieved in conventional optical microscopy (known as the Abbe limit) is approximately λ/2, where λ is the wavelength of the radiation. Electromagnetic waves with wavelength λ that interact with an object are diffracted into two components: progressive waves with low spatial frequency (< 2/λ) and evanescent waves with...

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