EEMCS

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Official URL: http://dx.doi.org/10.1364/OE.14.008745

Abstract

We show that nano-mechanical interaction using atomic force microscopy (AFM) can be used to map out mode-patterns of an optical micro-resonator with high spatial accuracy. Furthermore we demonstrate how the Q-factor and center wavelength of such resonances can be sensitively modified by both horizontal and vertical displacement of an AFM tip consisting of either Si3N4 or Si material. With a silicon tip we are able to tune the resonance wavelength by 2.3 nm, and to set Q between values of 615 and zero, by expedient positioning of the AFM tip. We find full on/off switching for less than 100 nm vertical, and for 500 nm lateral
displacement at the strongest resonance antinode locations.

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• Nano-mechanical tuning and imaging of a photonic crystal micro-cavity resonance (deposited 09 October 2006)
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