Harmonic oscillator chains connecting two harmonic reservoirs at different constant temperatures cannot act as thermal diodes, irrespective of structural asymmetry. However, here we prove that perfectly junctions can rectify heat once the (described by white Langevin noise) are placed under temperature gradients, which asymmetric sides, an effect term "temperature-gradient diodes". This nonline...

Nonreciprocity in superconductors is attracting much interest owing to its fundamental importance as well the potential applicability engineering. In this paper, we generalize previous theories of intrinsic superconducting diode effect (SDE) and microscopically elucidate relationship with nonreciprocity transition lines under supercurrent. We derive a general formula for SDE by using phenomenol...

In this study, a famous boxed effect pedal, also called stompbox, for electrical guitars is analyzed and simulated. The nodal DK method is used to create a non-linear state-space system with Matlab as a physical model for the MXR Phase 90 guitar effect pedal. A crucial component of the effect are Junction Field Effect Transistors (JFETs) which are used as variable resistors to dynamically vary ...

In this paper investigate the effect of X-ray irradiated on p-n diode. The change of electrical characteristics of diode can confirm by junction depth. Energy of irradiated are various in the range 40-70 keV at time of exposure 205 second. After irradiated by X-ray the electrical were changed, leakage current were decreased. The change of leakage current can analysis by junction depth, junction...

Nonreciprocal wave propagation typically requires strong nonlinear materials to break time reversal symmetry. Here, we utilized a sonic-crystal-based acoustic diode that had broken spatial inversion symmetry and experimentally realized sound unidirectional transmission in this acoustic diode. These novel phenomena are attributed to different mode transitions as well as their associated differen...

In this article, the effect of quantum interference between emitter and well electrons in resonant tunneling diode on the amount and direction of emitter current has been discussed. We have shown that the mentioned phenomenon has a considerable effect on diode time behavior. Furthermore, we have compared the results of this new model and the last presented one for the frequency response of diod...

Single quantum dot (QD) light-emitting diodes were fabricated with side gates in a lateral p-i-n structure. The electroluminescence (EL) energy from the QDs can be controlled independently by the side gates and by forward bias. Stark shifts in EL have been observed up to 0.4meV as a function of forward injection current, and around 0.7meV by applying an electric field of 36 kV cm across the QDs...

Many applications such as pumping of solid state lasers or ignition of explosives require high optical output powers during a short period. Pulsed operated diode lasers meet these requirements. They can be driven at elevated power levels, well above the ones specified for continuous wave (cw) operation. The optical near-field intensity of a diode laser in this operation regime is a key paramete...

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