Four distinct conditions for primitive-lattice-vector-direction equal contrasts in four-beam interference are introduced and described. By maximizing the absolute contrast subject to an equal contrast condition, lithographically useful interference patterns are found. Each condition is described in terms of the corresponding constraints on the plane wave wave vectors, polarizations, and intensi...

A matter wave ghost imaging mechanism is proposed and demonstrated theoretically. This mechanism is based on the Talbot-Lau effect. Periodic gratings of matter wave density, which appear as a result of interference of atoms diffracted by pulses of an optical standing wave, are utilized to produce the reference wave and the signal wave simultaneously for the ghost imaging. An advantage of this m...

Coherent diffractive imaging (CDI) is an imaging technique that seeks to restore the exit-surface wave from intensity measurements, either in the far field diffraction plane or the Fresnel diffraction region. To date numerous strategies have been proposed to complete this restoration, the most successful being the original scheme proposed by Gerchberg and Saxton and its subsequent modifications...

.5ex > ∼ < ∼ graphicxdcolumnbm document Wave effect in gravitational lensing by a cosmic string Kazuhiro Yamamoto and Keiji Tsunoda Department of Physical Science, Hiroshima University, HigashiHiroshima 739-8526, Japan abstract The wave effect in the gravitational lensing phenomenon by a straight cosmic string is investigated. The interference pattern is expressed in terms of a simple formula. ...

Thermal-wave fields have been optically generated and measured, using spatially resolved scanning photopyroelectric detection. Both single laser-beam diffraction profiles and thermal-wave patterns from two laser beams, interfering coherently in a manner analogous to Young's optical-wave experiment, have been produced. The diffraction and interference images have further been shown to be in exce...

If one analyzes the effects of electromagnetic vacuum fluctuations upon an electron interference pattern in an approximation in which the electrons follow classical trajectories, an ultraviolet divergence results. It is shown that this divergence is an artifact of the classical trajectory approximation, and is absent when the finite sizes of electron wavepackets are accounted for. It is shown t...

With propagating through a dispersive medium, the temporal-spectral profile of laser pulses should be inevitably modified. Although such dispersion effect has been well studied in classical optics, its on single-photon wave-packet, i.e., matter wave single-photon, not yet entirely revealed. In this paper, we investigate indistinguishability wave-packets Hong-Ou-Mandel (HOM) interference. By dis...

With the help of an analogy with a double-slit experiment, it is shown that the standard method of calculation of the rate of an interaction process by adding the rates of production of all the allowed final states, regardless of a possible coherence among them, is correct. It is a consequence of causality. The claims that the GSI time anomaly is due to the mixing of neutrinos in the final stat...

ABSTRACT Wave effects in lensing form a rich phenomenon at the intersection of classical caustic singularities and quantum interference, yet are notoriously difficult to model. Due large number recently observed pulsars fast radio bursts astronomy prospected increase sensitivity gravitational wave detectors, have already been plasma will be near future. The interference fringes sensitive physic...