Sensors, MEMS, Electronics – Page 270

A Minnow, an E. Coli and Ubiquinone: The Story of Rectified Brownian Motion

Fox R.F., School of Physics, US

Rectified Brownian motion provides a mechanistic alternative to the power stroke model for the function of motor proteins and other enzyme complexes. ATP is the source of metabolic free energy for motor proteins such as [...]

Nano-Scale Effects in GaN-based Light-Emitting Diodes

Piprek J., Nakamura S., University of California, US

We here investigate the effects of built-in polarization on the properties of non-symmetric InGaN quantum wells. The impact of these nano-scale effects on the performance of blue light emitting diodes is analyzed utilizing advanced numerical [...]

An Ultra-Fast Scheme for Sample-Detection in Dynamic-Mode Atomic Force Microscopy

Sahoo D.R., Sebastian A., Salapaka M.V., Iowa State University, US

In typical dynamic mode operation of atomic force microscopes steady state signals like amplitude and phase are used for detection and imaging of material. In these methods, high quality factor of the cantilever results in [...]

High Resolution Backside Imaging and Thermography using a Numerical Aperature Increasing Lens

Ünlü M.S., Ippolito S.B., Eraslan M.G., Thorne S.A., Vamivakas A., Goldberg B.B., Leblebici Y., Boston University, US

Nanoscale imaging of defects in ICs is a great current technological challenge as IC feature sizes continue to shrink. We have developed novel techniques based on a Numerical Aperture Increasing Lens (NAIL) to study semiconductors [...]

Local Optical Field in the Neighborhood of Structured Surfaces: Phase Singularities and Talbot Effect

Levine B., Caumont M., Amien C., Chaudret B., Dwir B., Bacsa W.S., LPST Université Paul Sabatier, FR

We have probed the local optical field in the vicinity of structured surfaces to observe optical coherence effects. We have used a sub -wavelength sized optical fiber probe to map the local field of microgratings [...]

Ultimate Limits to Optical Displacement Detection in Nanoelectromechanical Systems

Kouh T., Karabacak D., Kim D-H., Ekinci K.L., Boston University, US

Nano-electro-mechanical Systems (NEMS) are among the most promising manifestations of the emerging field of nanotechnology. These are electromechanical systems with dimensions in the deep submicron mostly operated in their resonant modes. In this size regime, [...]

Nano Photonics, Optoelectronics and Imaging

Design and Verification of an Electrostatic MEMS Simulator

Bognar G., Rencz M., Ciontu F., Charlot B., Courtois B., Micred, HU

Thermal solvers can be used for the simulation of electro-static problems as well, since the main equations to be solved are the same: the so-called field equation. There are numerous thermal solvers on the market, [...]

Improved O(N) Neighbor List Method Using Domain Decomposition and Data Sorting

Yao Z-H, Wang J-S., Cheng M., National University of Singapore, SG

The conventional Verlet table neighbor list algorithm is improved to reduce the number of unnecessary interatomic distance calculation in molecular simulations involving many atoms. Both of the serial and parallelized performance of molecular dynamics simulation [...]

Parallelization of BEM Electrostatic Solver Using a PC Cluster

Tang H-K, Yang Y-J, National Taiwan University, TW

In this paper, the application of parallel-processing techniques for electrostatic calculation is presented. Evaluating the pre-conditioner used for inverting the system matrix of a boundary-element-method (BEM) electrostatic solver (Fastlap) is one of the most time [...]