Results 11 to 20 of about 15,476 (248)

Microfabricated ion traps [PDF]

open access: yesContemporary Physics, 2011
Ion traps offer the opportunity to study fundamental quantum systems with high level of accuracy highly decoupled from the environment. Individual atomic ions can be controlled and manipulated with electric fields, cooled to the ground state of motion with laser cooling and coherently manipulated using optical and microwave radiation.
Hughes, Marcus D.   +3 more
openaire   +2 more sources

Dual-Channel Light Intensity Modulation Method for Focusing in Projection Lithography

open access: yesIEEE Photonics Journal, 2016
Focusing technique is the key factor in improving the resolution of projection lithography. In order to achieve high accuracy of focusing on the nanometer level, we present a focusing method based on dual-channel light intensity modulation.
Yanli Li   +4 more
doaj   +1 more source

Outstanding Humidity Chemiresistors Based on Imine-Linked Covalent Organic Framework Films for Human Respiration Monitoring

open access: yesNano-Micro Letters, 2023
Highlights Imine groups in covalent organic framework (COF) films act as dual-active sites for humidity sensing, inducing an intrinsic enhanced mechanism of reversible protonated tautomerism via water molecule-induced hydrogen bonding.
Xiyu Chen   +11 more
doaj   +1 more source

A Moiré-Based Four-Channel Focusing and Leveling Scheme for Projection Lithography

open access: yesIEEE Photonics Journal, 2014
Focusing and leveling are two imperative processes to adjust the wafer onto the ideal focal plane of projection lithography tools. Based on moiré fringes formed by particularly designed dual-grating marks, the four-channel focusing and leveling ...
Chengliang Di   +6 more
doaj   +1 more source

Influence of Collimation on Alignment Accuracy in Proximity Lithography

open access: yesIEEE Photonics Journal, 2014
The alignment method based on moiré imaging has been wildly used for its high accuracy of physical measurement, which utilized the phase of moiré fringe to measure the relative linear displacement between the mask and the wafer.
Nan Wang   +6 more
doaj   +1 more source

Fabrication of Micro-Optics Elements with Arbitrary Surface Profiles Based on One-Step Maskless Grayscale Lithography

open access: yesMicromachines, 2017
A maskless lithography method to realize the rapid and cost-effective fabrication of micro-optics elements with arbitrary surface profiles is reported. A digital micro-mirror device (DMD) is applied to flexibly modulate that the exposure dose according ...
Qinyuan Deng   +5 more
doaj   +1 more source

Versatile Functionalization of Carbon Nanomaterials by Ferrate(VI)

open access: yesNano-Micro Letters, 2020
As a high-valent iron compound with Fe in the highest accessible oxidation state, ferrate(VI) brings unique opportunities for a number of areas where chemical oxidation is essential.
Ying Zhou   +4 more
doaj   +1 more source

Collimation Sensing With Differential Grating and Talbot Interferometry

open access: yesIEEE Photonics Journal, 2014
The collimation of monochromatic light in optical metrology is of great importance for its determination of the accuracy of physical measurement. This paper proposes a novel collimation testing method with the differential grating (DG) characterized by ...
Nan Wang   +4 more
doaj   +1 more source

Gaussian-Linearized Transformer with Tranquilized Time-Series Decomposition Methods for Fault Diagnosis and Forecasting of Methane Gas Sensor Arrays

open access: yesApplied Sciences, 2023
Methane is considered as a clean energy that is widely used in places with high environmental requirements. The increasing demand for methane exploration in polar and deep sea extreme environments has a positive role in carbon neutrality policies.
Kai Zhang   +7 more
doaj   +1 more source

Biosynthesis and Antibacterial Activity of Silver Nanoparticles Using Yeast Extract as Reducing and Capping Agents

open access: yesNanoscale Research Letters, 2020
Biosynthesis for the preparation of antimicrobial silver nanoparticles (Ag NPs) is a green method without the use of cytotoxic reducing and surfactant agents.
Mengjun Shu   +8 more
doaj   +1 more source

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