TITLE

Newton's rings in near-field optics

AUTHOR(S)
Goldner, Lori S.; Hwang, Jeeseong; Bryant, Garnett W.; Fasolka, Michael J.; Absil, P. P.; Hryniewicz, J. V.; Johnson, F. G.; Shen, H.; Ho, P.-T.
PUB. DATE
January 2001
SOURCE
Applied Physics Letters;1/29/2001, Vol. 78 Issue 5, p583
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
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 reflections from 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 wave vectors needed to describe light from the probe. © 2001 American Institute of Physics.
ACCESSION #
4711300

 

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