CA – Page 30 – TechConnect Briefs

Transfer of Atoms Between Condensates by Raman Transitions

Paranjape V.V., Panat P.V., Lawande S.V., Lakehead University, CA

Law and Bigelow (Phys.Rev. A58,4791,1998) have proposed a scheme for amplifying an atomic beam as it interacts with a confined alkali-atom condensate. In this scheme the condensate acts as a source for increasing the intensity [...]

A Novel Simulation Methodology for Isotropic Gas Phase Etching

Bahreyni B., Shafai C., Card C.M., The University of Manitoba, CA

A novel methodology for the simulation of isotropic gas phase etching of a substrate is presented. In this method, individual substrate atoms are removed upon physical impingement of etchant gas molecules. The effects of different [...]

Alignment Characteristic and Mechanism of Carbon Nanotubes Synthesized by Hot Filament Chemical Vapor Deposition in a CH4/H2 Plasma

Yang Q., Chen W., Singh A., Xiao C., Hirose A., University of Saskatchewan, CA

Controlling of the alignment of carbon nanotubes (CNTs) is very important for applications such as scanning probes, sensors, field emitters and nanoelectronics. Controlled growth of CNTs aligned at different angles to the substrate has been [...]

RAM Design Using Quantum-Dot Cellular Automata

Walus K., Vetteth A., Jullien G.A., Dimitrov V.S., ATIPS Laboratory, CA

One of the most novel and powerful emerging nanotechnologies is quantum computing. This paper proposes a design for a parallel random-access memory (RAM) using Quantum-Dot Cellular Automata (QCA). QCA has the potential of becoming the [...]

Modeling and Simulation of Micromachined Needles

Zhang P., Jullien G.A., University of Calgary, CA

The research and development of microneedles are reviewed briefly and microneedles are classified. The features of those microneedles are analyzed and discussed. Based on those analysis, a new microneedle structure has been proposed. Those microneedles [...]

X-ray Absorption Near Edge Structures at the L3,2 and M3,2 edges: A probe for the electronic behavior of metal nanostructures

Yiu Y.M., Sham T.K., The University of Western Ontario, CA

We present a comparison of the calculation and experiment results of the X-ray Absorption Near Edge Structures (XANES) of the L 3,2-edges and the M 3,2 -edges of representative 5d metals. Emphasis is placed on [...]

Characterization of Ion Implantation in Si Using Infrared Spectroscopy with a Lock-In common-Mode-Rejection Demodulation

Rábag F., Mandelis A., Salnik A., University of Toronto, CA

B+, P+, and As+ ion-implanted Si wafers in the implantation dose range 1x1011 - 1x1013 ions/cm2 were characterized using Photothermal Radiometry (PTR). A comparison between the conventional frequency scan and a new technique called Common-Mode-Rejection [...]

Development of Thermodynamic Methods for the study of Nanopores

Paul R., Paddison S.J., University of Calgary, CA

A statistical mechanical formalism is presented for the calculation of the thermodynamic properties of the water in nanopores of polymer electrolytes, with particular emphasis on the polarization. We describe a method that exploits the variational [...]

Separation of Long Polyelectrolytes in a Microfuluidic Channel with Constrictions: A Monte Carlo Study

Tessier F., Slater G.W., University of Ottawa, CA

We present Monte Carlo simulation results for the motion of long linear polyelectrolytes inside a microchannel of molecular dimensions, structured as a periodic array of wells linked by narrow constrictions. Molecules are driven in the [...]

RF MOSFET Noise Parameter Extraction and Modeling

Jamal Deen M., Chen C-H, McMaster University, CA

In this paper, a novel procedure for extracting the important noise sources in MOSFETs is reviewed. Examples of extracted noise sources as a function of frequency, bias and geometry are presented using devices from a [...]