Results 101 to 110 of about 5,555 (236)

Bessel‐Beam Direct Write of the Etch Mask in a Nano‐Film of Alumina for High‐Efficiency Si Solar Cells

open access: yesAdvanced Engineering Materials, Volume 26, Issue 21, November 2024.
Laser patterning of dry‐plasma etch mask over centimeter‐scale regions with sub‐wavelength resolution on Si solar cells is demonstrated. The plasma etch protocol is developed for definition of a regular photonic crystal (PhC) pattern on the surface of Si solar cell.
Tomas Katkus   +17 more
wiley   +1 more source

Electromechanical Reliability Testing of Three-Axial Silicon Force Sensors [PDF]

open access: yes, 2006
This paper reports on the systematic electromechanical characterization of a new three-axial force sensor used in dimensional metrology of micro components. The siliconbased sensor system consists of piezoresistive mechanicalstress transducers integrated
Bartholomeyczik, J.   +8 more
core   +1 more source

Electron spin resonance of nitrogen-vacancy centers in optically trapped nanodiamonds

open access: yes, 2012
Using an optical tweezers apparatus, we demonstrate three-dimensional control of nanodiamonds in solution with simultaneous readout of ground-state electron-spin resonance (ESR) transitions in an ensemble of diamond nitrogen-vacancy (NV) color centers ...
A. N. Cleland   +25 more
core   +1 more source

Tracking Control of a Galfenol-Actuated Nanopositioning Stage Using Feedforward Control with a Disturbance Observer

open access: yesAdvances in Materials Science and Engineering, 2019
The main challenge of the galfenol actuator for high-precision positioning is the inherent nonsmooth hysteresis, which may lead to undesirable inaccuracies or oscillations and even instability.
Shiping Jiang   +3 more
doaj   +1 more source

Development of a Compact Three-Degree-of-Freedom Laser Measurement System with Self-Wavelength Correction for Displacement Feedback of a Nanopositioning Stage

open access: yesApplied Sciences, 2018
This paper presents a miniature three-degree-of-freedom laser measurement (3DOFLM) system for displacement feedback and error compensation of a nanopositioning stage.
Yindi Cai   +4 more
doaj   +1 more source

Engineered arrays of NV color centers in diamond based on implantation of CN- molecules through nanoapertures

open access: yes, 2010
We report a versatile method to engineer arrays of nitrogen-vacancy (NV) color centers in dia- mond at the nanoscale. The defects were produced in parallel by ion implantation through 80 nm diameter apertures patterned using electron beam lithography in ...
A Dréau   +14 more
core   +2 more sources

Coupling an epitaxial quantum dot to a fiber-based external-mirror microcavity

open access: yes, 2009
We report the coupling of individual InAs quantum dots (QDs) to an external-mirror microcavity. The external mirror is bonded to a fiber and positioned above a semiconductor sample consisting of a QD-containing GaAs layer on top of a distributed Bragg ...
Flagg, Edward B.   +4 more
core   +1 more source

2D photonic-crystal optomechanical nanoresonator

open access: yes, 2014
We present the optical optimization of an optomechanical device based on a suspended InP membrane patterned with a 2D near-wavelength grating (NWG) based on a 2D photonic-crystal geometry.
Antoni, T.   +14 more
core   +4 more sources

Analysis and design of rapid prototyped mechanisms using hybrid flexural pivots [PDF]

open access: yes, 2015
The ability of fabricating flexure based mechanism is of great importance in modern technology fields such as nanotechnology and precision engineering. For an instance, a great number of nanopositioning systems are made out of flexures. Examples of these
Correa-Panesso, Jorge Eduardo
core  

Visual Servoing Schemes for Automatic Nanopositioning Under Scanning Electron Microscope.

open access: yes, 2014
International audienceThis paper presents two visual servoing approaches for nanopositioning in a scanning electron microscope (SEM). The first approach uses the total pixel intensities of an image as visual measurements for designing the control law ...
Dembélé, Sounkalo   +3 more
core   +2 more sources

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