Details
| Original language | English |
|---|---|
| Article number | 335501 |
| Journal | NANOTECHNOLOGY |
| Volume | 26 |
| Issue number | 33 |
| Publication status | Published - 21 Aug 2015 |
| Externally published | Yes |
Abstract
Micro- and nanoelectromechanical oscillators driven at or close to their resonance frequency are used as sensors in many fields of science and technology. A decrease in the oscillator's effective spring constant and/or mass holds great potential for an increase in the sensor's sensitivity. This is usually accompanied by a reduction in spatial dimensions, which in most cases requires more complex detection methods. By analyzing the complex behavior of a simple asymmetric coupled harmonic oscillator model we propose a novel sensor concept which combines the advantages of bigger and smaller oscillators, i.e. ease of detection and high sensitivity. The concept is based on matching the resonance frequencies of two otherwise very different oscillators. To support our theoretical considerations, we present an experimental implementation of such a sensor and respective experimental data, verifying a substantial signal enhancement by several orders of magnitude.
Keywords
- carbon nanotube, coupled oscillators, detection, NEMS, signal enhancement
ASJC Scopus subject areas
- Chemical Engineering(all)
- Bioengineering
- Chemistry(all)
- Materials Science(all)
- Engineering(all)
- Mechanics of Materials
- Engineering(all)
- Mechanical Engineering
- Engineering(all)
- Electrical and Electronic Engineering
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In: NANOTECHNOLOGY, Vol. 26, No. 33, 335501, 21.08.2015.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Introduction of a co-resonant detection concept for mechanical oscillation-based sensors
AU - Reiche, Christopher F.
AU - Körner, Julia
AU - Büchner, Bernd
AU - Mühl, Thomas
N1 - Publisher Copyright: © 2015 IOP Publishing Ltd.
PY - 2015/8/21
Y1 - 2015/8/21
N2 - Micro- and nanoelectromechanical oscillators driven at or close to their resonance frequency are used as sensors in many fields of science and technology. A decrease in the oscillator's effective spring constant and/or mass holds great potential for an increase in the sensor's sensitivity. This is usually accompanied by a reduction in spatial dimensions, which in most cases requires more complex detection methods. By analyzing the complex behavior of a simple asymmetric coupled harmonic oscillator model we propose a novel sensor concept which combines the advantages of bigger and smaller oscillators, i.e. ease of detection and high sensitivity. The concept is based on matching the resonance frequencies of two otherwise very different oscillators. To support our theoretical considerations, we present an experimental implementation of such a sensor and respective experimental data, verifying a substantial signal enhancement by several orders of magnitude.
AB - Micro- and nanoelectromechanical oscillators driven at or close to their resonance frequency are used as sensors in many fields of science and technology. A decrease in the oscillator's effective spring constant and/or mass holds great potential for an increase in the sensor's sensitivity. This is usually accompanied by a reduction in spatial dimensions, which in most cases requires more complex detection methods. By analyzing the complex behavior of a simple asymmetric coupled harmonic oscillator model we propose a novel sensor concept which combines the advantages of bigger and smaller oscillators, i.e. ease of detection and high sensitivity. The concept is based on matching the resonance frequencies of two otherwise very different oscillators. To support our theoretical considerations, we present an experimental implementation of such a sensor and respective experimental data, verifying a substantial signal enhancement by several orders of magnitude.
KW - carbon nanotube
KW - coupled oscillators
KW - detection
KW - NEMS
KW - signal enhancement
UR - http://www.scopus.com/inward/record.url?scp=84938394951&partnerID=8YFLogxK
U2 - 10.1088/0957-4484/26/33/335501
DO - 10.1088/0957-4484/26/33/335501
M3 - Article
AN - SCOPUS:84938394951
VL - 26
JO - NANOTECHNOLOGY
JF - NANOTECHNOLOGY
SN - 0957-4484
IS - 33
M1 - 335501
ER -