Journal
NANO LETTERS
Volume 9, Issue 12, Pages 4122-4127Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl902350b
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Funding
- Autonomous Community of Madrid
- C.S.I.C.
- Spanish Ministry of Science [TEC2006-10316, CSD 2007-00010, CSIC-200650170091]
- Autonomous Community of Madrid [0505/MAT-0283]
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Coupled nanomechanical systems and their entangled eigenstates offer unique opportunities for the detection of ultrasmall masses. In this paper we show theoretically and experimentally that the stochastic and deterministic responses of a pair of coupled nanocantilevers provide different and complementary information about the added mass of an analyte and its location. This method allows the sensitive detection of minute quantities of mass even in the presence of large initial differences in the active masses of the two cantilevers. Finally, we show the fundamental limits in mass detection of this sensing paradigm.
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