We investigate electron momentum distributions from single ionization of Ar by two orthogonally polarized laser pulses of different color. The two-color scheme is used to experimentally control the interference between electron wave packets released at different times within one laser cycle. This intracycle interference pattern is typically hard to resolve in an experiment. With the two-color c...

Arterial waves are seen as possible independent mediators of cardiovascular risks, and the wave intensity analysis (WIA) has therefore been proposed as a method for patient selection for ventricular assist device (VAD) implantation. Interpreting measured wave intensity (WI) is challenging, and complexity is increased by the implantation of a VAD. The waves generated by the VAD interact with the...

Fundamental to the understanding of all physical processes on an atomic scale is a theoretical framework based upon quantum mechanics and wave-particle duality. The success of the quantum theory has been proven time and again, and has led to many of the technological and scientific advances that evolved during the latter part of the 20th century. This theory provides the framework for all succe...

Information on the distance to the target is very important to achieve the practical use of hands-free speech interfaces and nursing-care robots. Many distance measurement methods, which use the time-of-flight (TOF) of a reflected wave measured with reference to the transmitted wave, have been proposed. However, these methods cannot measure short distances because the transmitted wave, which ha...

The interference of two independent single-photon pulses impinging on a beam splitter is analysed in a generalised time-resolved manner. Different aspects of the phenomenon are elaborated using different representations of the single-photon wave packets, like the decomposition into single-frequency field modes or spatio-temporal modes matching the photonic wave packets. Both representations lea...

We study the self interference effect of a resonator coupled with bent waveguide at two separated ports. Such effects are shown to be similar for cases standing-wave and traveling-wave resonators, while in system resonators indirectly via waveguide, coupling forms related depend on which kind is chosen. Due interference, controllable optical responses including tunable linewidth frequency shift...

This article presents visualizations of some solutions of the timedependent free Dirac equation. They illustrate some of the strange phenomena which are caused by the interference of positiveand negative-energy waves. We discuss, in particular, the conditions for the occurrence of effects like the Zitterbewegung , the opposite direction of momentum and velocity in negative-energy wave packets, ...

Using the technique of terahertz photomixing, a continuous-wave terahertz source is used to characterise various semiconductors in the frequency range from 0.06 to 1.0 THz. By directly analysing the interference pattern of the transmission through semiconductor wafers using Fabry-Pérot theory, information regarding the carrier concentration, sample thickness and refractive index is obtained wit...

The generalized optical transfer function and the spectral correlation function are investigated for nonparaxial two-dimensional wave fields. The angle-impact marginal of the four-dimensional Wigner function is derived directly. For focused wave fields of semiangle greater than 90 degrees, the spectral correlation function exhibits overlapping and interference. For focused wave fields for which...

It has been shown that velocity of propagation of wave front cannot coincide with observable velocity of quantum particles. It is additional argument leads to conclusion that phase wave of de Broglie cannot be associated with single “elementary” particle like electron. Therefore quantum interference under linear superposition cannot describe energy distribution in extended quantum particles. Es...