Abstract
We investigate initially the influence of thermomechanical and momentum exchange noise on the limit to mass sensitivity Delta m of nanoresonators with random rough surfaces, which are characterized by the roughness amplitude w, the correlation length xi, and the roughness exponent 0 <H <1. In fact, Delta m increases with increasing roughness (decreasing H and/or increasing ratio w/xi) if the quality factor associated with thermomechanical noise is larger than that due to momentum exchange noise. Finally, the influence of adsorption-desorption noise, which is also influenced by the surface morphology, is shown to play a minimal role in the presence of the other two noise sources.
Original language | English |
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Article number | 016107 |
Pages (from-to) | 016107-1 - 016107-3 |
Number of pages | 3 |
Journal | Journal of Applied Physics |
Volume | 104 |
Issue number | 1 |
DOIs | |
Publication status | Published - 1-Jul-2008 |
Keywords
- NANOELECTROMECHANICAL SYSTEMS
- NANOMECHANICAL RESONATORS
- NOISE
- DISPLACEMENT
- SPECTRUM
- SENSORS