We address theoretically adiabatic regime of charge transport for a model of two tunnel-coupled quantum dots connected in series. The energy levels of the two dots are harmonically modulated by an external potential with a constant phase shift between the two. Motivated by recent experiments with surface-acoustic-wave excitation, we consider two situations: (a) pure pumping in the absence of ex...

A novel switched excitation method for linear frequency modulated excitation of ultrasonic transducers in pulse compression systems is presented that is simple to realise, yet provides reduced signal sidelobes at the output of the matched filter compared to bipolar pseudo-chirp excitation. Pulse compression signal sidelobes are reduced through the use of simple amplitude tapering at the beginni...

Typically two configurations are used for energy harvesting with different advantages: piezoelastic and piezomagnetoelastic. Best performance of the piezoelastic configuration is when the excitation frequency is close to the resonance frequency. If the input frequency slightly deviates from the natural frequency, the generated power is severely decreased. To tackle the problem, the piezomagneto...

Dynamic systems are faced with large vibration amplitudes if they operate near the resonance frequency of system or while passing through resonance. With a suitable external excitation reduction amplitude oscillation can be achieved. The analysis variable was first carried out on force driven single degree freedom harmonic oscillator. influence various parameters seen after mathematical transfo...

Plasmon resonance in nanostructured metals is in essence collective oscillation of free electrons, which is driven by optical electric fields and oscillates at nearly the same frequency as the excitation photons. This is the basic physics for the currently extensively interested topics in optical metamaterials, optical switching, and logic optical "circuits" with potential applications in optic...

This study proposes a temperature model for the relaxation of magnetic nanoparticles and phase measurement method under mixing-frequency excitation field, which can improve accuracy measurements in nanothermometry. According to Debye-based magnetization nanoparticles, phases at mixing frequencies are used solve problem delay field high frequency. signal-to-noise ratio response weaken shift dete...