A PLL circuit includes phase detector for detecting phase error between an input and output signal of the PLL circuit and outputting pump up and pump down signal. A charge pump generates a charge pump signal in response to pump up and pump down signals. A loop filter filters charge pump signal to generate a filtered signal. A boost-up device coupled to loop filter output terminal charges a loop...

Single-electronics circuits can detect charges much smaller than the charge of an electron. This enables phenomenally precise charge measurements but it also means that charged defects (often referred to as offset charges) can disrupt device operation. It has been suggested that large scale integration of single-electron devices could be used to construct fast logic circuits with a high device ...

We present the design of a superconducting qubit that has circulating currents of opposite sign as its two states. The circuit consists of three nanoscale aluminum Josephson junctions connected in a superconducting loop and controlled by magnetic fields. The advantages of this qubit are that it can be made insensitive to background charges in the substrate, the flux in the two states can be det...

In this work, the application of numerical device simulation to the analysis of high resistivity silicon microstrip detectors is illustrated. The analysis of dc, ac and transient responses of a single-sided, dc-coupled detector has been carried out, providing results in good agreement with experimental data. In particular, transient-mode simulation has been exploited to investigate the collecti...

We have proposed a new ultra-compact optical demultiplexer based on metal-insulator-metal plasmonic waveguides aperture-coupled to the ring resonators. Our proposed device has high performance, small footprint, and high potential for integration and development to more channels.