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Publication Citation: Newton's Rings in Near-Field Optics

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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
Volume: 78
Issue: No. 5
Keywords: Correlated roughness;microscopy;near-field optics;near-field scanning optical microscopy;NSOM
Research Areas:
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