In this work, the theoretical shapes of cavities were investigated as suited for resonant-tunneling diode (RTD) lumped-element oscillators to achieve highest possible operational frequency. The scope work is restricted cylindrical that are in their dimensions much smaller or similar free-space wavelength. idea find a shape has quality factor possible. proposed analysis based on functional varia...

We investigate the dynamic behaviour of resonant tunneling diode-photodetectors (RTD-PDs) in which excitability can be activated by either electrical noise or optical signals. In both cases, we find characteristics stochastic spiking behavior are not only dependent on biasing positions but also controlled intensity input perturbations. Additionally, explore ability RTD-PDs to perform signal tra...