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Optics Letters

Optics Letters


  • Vol. 21, Iss. 16 — Aug. 15, 1996
  • pp: 1208–1210

Equivalence of constant-height and constant-intensity images in scanning near-field optical microscopy

Rémi Carminati and Jean-Jacques Greffet  »View Author Affiliations

Optics Letters, Vol. 21, Issue 16, pp. 1208-1210 (1996)

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We present an analytical proof of the equivalence of scanning near-field optical images of small objects obtained by two alternative operating modes: (1) scanning at a constant distance from the mean plane of the surface and recording the detected intensity (constant-height images) and (2) keeping the detected intensity constant and recording the vertical motion of the tip (constant-intensity images). Numerical simulations with homogeneous and inhomogeneous samples illustrate this result.

© 1996 Optical Society of America

Original Manuscript: March 18, 1996
Published: August 15, 1996

Rémi Carminati and Jean-Jacques Greffet, "Equivalence of constant-height and constant-intensity images in scanning near-field optical microscopy," Opt. Lett. 21, 1208-1210 (1996)

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