EQUIVALENCE OF CONSTANT-HEIGHT AND CONSTANT-INTENSITY IMAGES IN SCANNING NEAR-FIELD OPTICAL MICROSCOPY

Authors
CARMINATI R GREFFET JJ
Citation
R. Carminati et Jj. Greffet, EQUIVALENCE OF CONSTANT-HEIGHT AND CONSTANT-INTENSITY IMAGES IN SCANNING NEAR-FIELD OPTICAL MICROSCOPY, Optics letters, 21(16), 1996, pp. 1208-1210
Citations number
21
Categorie Soggetti
Optics
Journal title
Optics letters → ACNP
ISSN journal
01469592
Volume
21
Issue
16
Year of publication
1996
Pages
1208 - 1210
Database
ISI
SICI code
0146-9592(1996)21:16<1208:EOCACI>2.0.ZU;2-M
Abstract
We present an analytical proof of the equivalence of scanning near-fie ld optical images of small objects obtained by two alternative operati ng modes: (1) scanning at a constant distance from the mean plane of t he surface and recording the detected intensity (constant-height image s) and (2) keeping the detected intensity constant and recording the v ertical motion of the tip (constant-intensity images). Numerical simul ations with homogeneous and inhomogeneous samples illustrate this resu lt. (C) 1996 Optical Society of America