We experimentally demonstrate a microelectromechanically reconfigurable ladder-shaped metamaterial (LS-MM) operating in terahertz (THz) range. Ultrasmall cantilever actuators with beam length of 14 μm are employed to independently reshape each unit cell the LS-MM, correspondingly switching transmission response THz waves. The driven LS-MM achieves tuning contrast 60.1% transmittance at 0.78 and...

The present study investigates Joule heating in piezoresistive microcantilever sensors. Joule heating and thermal deflections are a major source of noise in such sensors. This work uses analytical and numerical techniques to characterise the Joule heating in 4-layer piezoresistive microcantilevers made of silicon and silicon dioxide substrates but with the same U-shaped silicon piezoresistor. A...

Intrinsic localized modes (ILMs) have been observed in micromechanical cantilever arrays, and their creation, locking, interaction, and relaxation dynamics in the presence of a driver have been studied. The micromechanical array is fabricated in a 300 nm thick silicon-nitride film on a silicon substrate, and consists of up to 248 cantilevers of two alternating lengths. To observe the ILMs in th...

In this note we introduce the V-shaped action function with delay in a symplectization which is an intermediate functional between Rabinowitz and functional. It lives on same space as but its gradient flow equation case of We show that there smooth interpolation during critical points actions are fixed. On other hand bijection lines ones

This paper presents the design and testing of a one-axis piezoelectric accelerometer made from cellulose paper and piezoelectric zinc oxide nanowires (ZnO NWs) hydrothermally grown on paper. The accelerometer adopts a cantilever-based configuration with two parallel cantilever beams attached with a paper proof mass. A piece of U-shaped, ZnO-NW-coated paper is attached on top of the parallel bea...

A new interfacial microrheology technique using atomic force microscope (AFM) as a force sensor is developed. The probe used for microrheology contains a long vertical glass fiber with one end glued onto a rectangular shaped cantilever beam and the other end immersed through a water-air interface. The motion of the modified cantilever can be accurately described by the Langevin equation for a d...

The deflection of cantilever systems may be performed by an indirectelectrochemical method that consists of measuring the local cantilever activity anddeflection in a feedback generation-collection configuration of the SECM. This isillustrated during the electrochemically-assisted adsorption of Br onto a gold coatedcantilever, either in its pristine state or previously coated wi...