Phase retrieval for randomly terminated finite crystals

Deterministic control of randomly-terminated processes

We consider both discrete and continuous “uncertain horizon” deterministic control processes, for which the termination time is a random variable. We examine the dynamic programming equations for the value function of such processes, explore their connections to infinite-horizon and optimal-stopping problems, and derive sufficient conditions for the applicability of non-iterative (label-setting...

Cluster dynamics for randomly frustrated systems with finite connectivity.

Memory Effects in Randomly Perturbed Nematic Liquid Crystals

We study the typical domain size and configuration character of a randomly perturbed system exhibiting continuous symmetry breaking. As a model system we use rod-like objects within a cubic lattice interacting via a Lebwohl–Lasher-type interaction. We describe their local direction with a headless unit director field. An example of such systems represents nematic LC or nanotubes. We further int...

Phase Properties of One-Dimensional Quaternary Photonic Crystals

In this paper, properties of reflection phase in one-dimensional quaternary photonic crystals combining dispersive meta-materials and positive index materials are investigated by transfer matrix method. Two omnidirectional band gaps are located in the band structure of considered structure. However, we limit our studies to the frequency range of the second wide band gap. We observe that the val...

Blue-Phase Liquid Crystals for Projection Displays

A projection display using blue-phase liquid crystal (BPLC) is proposed. The fast-response BPLC enables field sequential projection display with suppressed color breakup. Methods for reducing the operating voltage are also discussed. Author