Understanding the microscopic structure and macroscopic properties of condensed matter
from a molecular perspective is important for both traditional and modern chemical …

The physics of soft-matter systems controlled by external fields is reviewed and previewed.
Particular emphasis is placed on statistical properties of well-characterized colloidal …

We describe a simple method for creating multiple optical tweezers from a single laser beam
using diffractive optical elements. As a demonstration of this technique, we have …

We study the phase behavior of a charged two-dimensional colloidal system in the presence
of a periodic light field composed of two interfering laser beams. Above a certain light …

We investigate the phase behavior of a two-dimensional suspension of charge stabilized
polystyrene spheres in the presence of a one-dimensional periodic light field. With …

Using Langevin simulations, we examine driven colloids interacting with quenched disorder.
For weak substrates the colloids form an ordered state and depin elastically. For increasing …

We show, using numerical simulations, that a rich variety of novel colloidal crystalline states
are realized on square and triangular two-dimensional periodic substrates which can be …

We present results from a Monte Carlo simulation study of the phase diagram and the order
of the modulated liquid to crystal transition in laser field modulated colloids. We find that for …

The physical behaviors of water in the interface are the fundamental to discovering the
engineering properties and environmental effects of aqueous porous media (eg, soils). The …

We demonstrate that particles confined to two dimensions (2D) and subjected to a one-
dimensional (1D) periodic potential exhibit a rich phase diagram, with both “locked floating …