Sensors, MEMS, Electronics – Page 213

A Bio-Inspired Rotor Powered by a Micro-Bubble

Kao J., Warren J., Xu J., Attinger D., Columbia University, US

We present and characterize a novel micro-rotor actuation concept, where acoustic oscillations of a micro-bubble produce a steady fluid flow driving a microfabricated rotor at a rotating speed as high as 600 rpm. Developing micro-machines [...]

Optical Micro-Spectrometer with Sub-Nanometer Resolution

Avrutsky I., Chaganti K., Salakhutdinov I., Auner G., Wayne State University, US

We develop a super compact optical fluorescence spectrometer. Our unique innovative design combines advantages of guided wave planar optics and free-space microoptics. This innovation allows for miniaturization that is not achievable with pure planar or [...]

A Novel Optical Waveguide Based Accelerometer

Chen F., Salcic Z., Wang J., The University of Auckland, NZ

A novel accelerometer proposed in this paper utilizes desired advantages which waveguide structure has as its sensor, such as high sensitivity due to photoelastic effect and wide spectral response range. It extends previous research by [...]

MEMS, NEMS & Sensing

Highly Photo-Stable Type-I PbSe/SnSe and PbSe/SnS Colloidal Core/Shell Quantum Dots

Shan J., van Veggel F.C.J.M., Raudsepp M., Pattantyus-Abraham A.G., Young J.F., University of Victoria, CA

In an effort to improve photo-stability of IV-VI PbSe and PbS quantum dots (QDs) for application of infrared-based devices, we have synthesized type I core/shell colloidal QDs with PbSe and PbS as the cores, and [...]

Influence of Hole size on Extraordinary Transmission through Periodic Perforated Hole Arrays

Tsai M-W, Chuang T-H, Lee S-C, Electronic Engineering, TW

In order to investigate the surface charge field on periodic metal arrays

II-VI Semiconductor Quantum Wire Fabrication and Application to IR Detection

Crouse D.T., Crouse M., Crouse D.T., Crouse M., Mahapatra S., Ikram A.A., City College of New York, US

A nanoporous alumina template has been developed that provides a practical and flexible method of fabricating semiconductor and metal nanowires on any desired substrate. In situ electrochemical techniques are used to transform this multilayer precursor [...]

Developing PbSe/PbS Core-Shell Nanocrystals Quantum Dots (NQDs) for Light Emitting NQD/Silicon Heterojunctions

Xu J., Xu S., Cui D., Xu J., Xu S., Paradee G., Zhang F., Zhu T., Pennsylvania State University, US

In order to incorporate infrared colloidal nanocrystal quantum dots into silicon matrix to develop silicon-based light emitters, we report in this paper the epitaxial growth of PbS shells over PbSe NQDs with monolayer precision. The [...]

Nanoparticle optical memory function

Soares B.F., Bashevoy M.V., MacDonald K.F., Jonsson F., Zheludev N.I., University of Southampton, UK

Light and electron-beam induced structural transformations in nanoparticles of polymorphic metals provide a paradigm for achieving resonator-less optical memory functionality with picojoule energy requirements. We demonstrate optical memory function with gallium nanoparticles grown by light-assisted [...]

Numerical Modeling of Nanoscale Silicon Photodetectors that Use Electromagnetic Resonance Modes to Enhance Performance

Crouse D., Keshavareddy P., The City College of New York, US

Several high responsivity, high bandwidth, low bit error ratio (BER) nanoscale Si photodetectors are modeled including metal-semiconductor-metal photodetectors (MSM-PD), MSM-PDs fabricated on silicon-on-insulator substrates, and avalanche photodiodes. The authors have analyzed surface plasmons and other [...]