Tuning the effective coupling of an AFM lever to a thermal bath
arXiv:0711.1024 · doi:10.1088/0957-4484/18/47/475502
Abstract
Fabrication of Nano-Electro-Mechanical-Systems (NEMS) of high quality is nowadays extremely efficient. These NEMS will be used as sensors and actuators in integrated systems. Their use however raises questions about their interface (actuation, detection, read out) with external detection and control systems. Their operation implies many fundamental questions related to single particle effects such as Coulomb blockade, light matter interactions such as radiation pressure, thermal effects, Casimir forces and the coupling of nanosystems to external world (thermal fluctuations, back action effect). Here we specifically present how the damping of an oscillating cantilever can be tuned in two radically different ways: i) through an electro-mechanical coupling in the presence of a strong Johnson noise, ii) through an external feedback control of thermal fluctuations which is the cold damping closely related to Maxwell's demon. This shows how the interplay between MEMS or NEMS external control and their coupling to a thermal bath can lead to a wealth of effects that are nowadays extensively studied in different areas.
References in corpus (9)
- A nonequilibrium equality for free energy differences
- Radiation-pressure cooling and optomechanical instability of a micro-mirror
- Self-cooling of a micro-mirror by radiation pressure
- Ultrasensitive nanoelectromechanical mass detection
- Cooling of a mirror by radiation pressure
- An experimental test of the Jarzynski equality in a mechanical experiment
- Feedback cooling of a nanomechanical resonator
- Fluctuation Theorems of Brownian Particles Controlled by a Maxwell's Demon
- Full mechanical characterization of a cold damped mirror
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