Cavity-enhanced optical detection of carbon nanotube Brownian motion
Cavity-enhanced optical detection of carbon nanotube Brownian motion
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2013
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Applied Physics Letters ; 102 (2013), 15. - 151910. - ISSN 0003-6951. - eISSN 1077-3118
Abstract
Optical cavities with small mode volume are well-suited to detect the vibration of sub-wavelength sized objects. Here we employ a fiber-based, high-finesse optical microcavity to detect the Brownian motion of a freely suspended carbon nanotube at room temperature under vacuum. The optical detection resolves deflections of the oscillating tube down to 70 pm=Hz1=2. A full vibrational spectrum of the carbon nanotube is obtained and confirmed by characterization of the same device in a scanning electron microscope. Our work extends the principles of high-sensitivity optomechanical detection to molecular scale nanomechanical systems.
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STAPFNER, Sebastian, Lukas OST, David HUNGER, Jakob REICHEL, Ivan FAVERO, Eva M. WEIG, 2013. Cavity-enhanced optical detection of carbon nanotube Brownian motion. In: Applied Physics Letters. 102(15), 151910. ISSN 0003-6951. eISSN 1077-3118. Available under: doi: 10.1063/1.4802746BibTex
@article{Stapfner2013Cavit-23393, year={2013}, doi={10.1063/1.4802746}, title={Cavity-enhanced optical detection of carbon nanotube Brownian motion}, number={15}, volume={102}, issn={0003-6951}, journal={Applied Physics Letters}, author={Stapfner, Sebastian and Ost, Lukas and Hunger, David and Reichel, Jakob and Favero, Ivan and Weig, Eva M.}, note={Article Number: 151910} }
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