Title of Document: INTERACTION OF LASERS WITH ATOMIC CLUSTERS AND STRUCTURED PLASMAS John Patrick Palastro, Ph. D, 2007 Directed By: Professor Thomas M. Antonsen Jr., Physics We examine the interaction of intense, short laser pulses with atomic clusters and structured plasmas, namely preformed plasma channels. In examining the laser pulse interaction with atomic clusters we focus on the optical...

This paper studies surface gravity waves in a channel with corrugated sidewalls in water of constant depth according to linear theory. Waves propagating along the channel encounter a nite patch of step-like corrugations in one of the channel walls. The method of solution employed is one of expansion in terms of eigenfunctions in each region and matching at the boundaries between regions. It is ...

We numerically simulate the transport of elliptic Janus particles along narrow two-dimensional channels with reflecting walls. The self-propulsion velocity of the particle is oriented along either its major (prolate) or minor axis (oblate). In smooth channels, we observe long diffusion transients: ballistic for prolate particles and zero diffusion for oblate particles. Placed in a rough channel...

This paper investigates the relationship between mechanical behaviors and shape of corrugated fiberboard by means of buckling analysis, which is done by FEM (Finite Element Method). Firstly, after analyzing the structure of corrugated fiberboard a single-wall corrugated fiberboard model was built. The buckling load was measured in the ideal condition by linear buckling analysis (eigenvalue buck...

Corrugated web girders represent a new structural system emerged in the past two decades. The girder’s flanges provide the flexural strength of the girder with no contribution from the corrugated web which provides the girder’s shear capacity. Failure of the web occurs by steel yielding, web buckling or interactively between them. Lateral torsion and local flange buckling of corrugated web gird...

In this paper the effect of corrugated diaphragm on performance of MEMS microphone is described. The corrugated diaphragm is modeled in order to improve the sensitivity of micromachined silicon acoustic sensor. Analytical analyzes have been carried out to derive mathematic expressions for the mechanical sensitivity and displacement of corrugated diaphragm with residual stress. It is shown that ...

Propagation of rays in 2D and 3D corrugated waveguides is performed the general framework stability indicators. The analysis based on Lyapunov reversibility error. It found that error growth follows a power law for regular orbits an exponential chaotic orbits. A relation with Shannon channel capacity devised approximate scaling increase corrugation depth.

In this paper we present a new model for calculating the capacitance of MEMS sensor with corrugated diaphragm. In this work the effect of residual stress is considered on deflection of diaphragm and capacitance of sensor. First, a new analytical analyzes have been carried out to derive mathematic expressions for central deflection of corrugated diaphragm and its relationship with residual stres...