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|Author(s):||Lori S. Goldner; Jeeseong Hwang; Garnett W. Bryant; Michael J. Fasolka; P Absil; J V. Hryniewicz; F G. Johnson; H Shen; P T. Ho;|
|Title:||Newton's Rings in Near-Field Optics|
|Published:||January 01, 2001|
|Abstract:||We show how Newton's rings manifest themselves in near-field scanning optical microscopy and discuss how this effect can be used with topographic imaging to measure correlated roughness of thin films. In conventional optics, transmission through a thin nonabsorbing film depends on film thickness when multiple reflectionsfrom the film boundaries are coherent. Measurements and modeling of the transmission through thin films illuminated by a near-field probe show that these oscillations are present despite the large distribution of transverse wavevectors needed to describe light from the probe.|
|Citation:||Applied Physics Letters|
|Keywords:||Correlated roughness,microscopy,near-field optics,near-field scanning optical microscopy,NSOM|
|PDF version:||Click here to retrieve PDF version of paper (86KB)|