Mass sensing based on deterministic and stochastic responses of elastically coupled nanocantilevers.
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.
Gil-Santos
Eduardo
E
Instituto de Microelectrónica de Madrid-CNM (CSIC), Isaac Newton 8 (PTM), Tres Cantos, 28760 Madrid.
Ramos
Daniel
D
Jana
Anirban
A
Calleja
Montserrat
M
Raman
Arvind
A
Tamayo
Javier
J
D000054:Acceleration; D000465:Algorithms; D003198:Computer Simulation; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008962:Models, Theoretical; D008970:Molecular Weight; D036103:Nanotechnology / Q000295:instrumentation*; D013269:Stochastic Processes