A series of microscope objective lenses combined with an interferometer for individual nanoparticles detection

2019 ◽  
Vol 19 (7) ◽  
pp. 822-828 ◽  
Author(s):  
Dahi Ghareab Abdelsalam Ibrahim
Keyword(s):  
Microscope Objective ◽  
Nanoparticles Detection ◽  
Individual Nanoparticles

Resolving Crystallites in Zirconium Oxide Films

1969 ◽  
Vol 27 ◽  
pp. 140-141
Author(s):  
R.A. Ploc
Keyword(s):  
Electron Microscope ◽  
Inelastic Scattering ◽  
Zirconium Oxide ◽  
Oxide Films ◽  
Optic Axis ◽  
Objective Lens ◽  
Microscope Objective ◽  
Linear Optic ◽  
A Current ◽  
Microscope Objective Lens

The optic axis of an electron microscope objective lens is usually assumed to be straight and co-linear with the mechanical center. No reason exists to assume such perfection and, indeed, simple reasoning suggests that it is a complicated curve. A current centered objective lens with a non-linear optic axis when used in conjunction with other lenses, leads to serious image errors if the nature of the specimen is such as to produce intense inelastic scattering.

scholarly journals Measurement of Navier Slip on Individual Nanoparticles in Liquid

Nano Letters ◽  
2021 ◽  
Author(s):  
Jesse F. Collis ◽  
Selim Olcum ◽  
Debadi Chakraborty ◽  
Scott R. Manalis ◽  
John E. Sader
Keyword(s):  
Navier Slip ◽  
Individual Nanoparticles

Towards 3D image-based nanocrystallography by means of transmission electron goniometry

2004 ◽  
Vol 839 ◽  
Author(s):  
Peter Moeck ◽  
Wentao Qin ◽  
Philip B. Fraundorf
Keyword(s):  
Lattice Structure ◽  
Three Dimensions ◽  
Structural Defects ◽  
Transmission Electron ◽  
Means Of Transmission ◽  
Z Contrast ◽  
Individual Nanoparticles ◽  
Nanocrystal Model ◽  
The Ideal

ABSTRACTIt is well known that the crystallographic phase and morphology of many materials changes with the crystal size in the tens of nanometer range and that many nanocrystals possess structural defects in excess of their equilibrium levels. A need to determine the ideal and real structure of individual nanoparticles, therefore, arises. High-resolution phase-contrast transmission electron microscopy (TEM) and atomic resolution Z-contrast scanning TEM (STEM) when combined with transmission electron goniometry offer the opportunity of develop dedicated methods for the crystallographic characterization of nanoparticles in three dimensions. This paper describes tilt strategies for taking data from individual nanocrystals “as found”, so as to provide information on their lattice structure and orientation, as well as on the structure and orientation of their surfaces and structural defects. Internet based java applets that facilitate the application of this technique for cubic crystals with calibrated tilt-rotation and double-tilt holders are mentioned briefly. The enhanced viability of image-based nanocrystallography in future aberration-corrected TEMs and STEMs is illustrated on a nanocrystal model system.

Rice Husks - Structure, Composition and Possibility of Use them at Surface Treatment

2016 ◽  
Vol 844 ◽  
pp. 153-156 ◽  
Author(s):  
Mateusz Fijalkowski ◽  
Kinga Adach ◽  
Aleš Petráň ◽  
Dora Kroisová
Keyword(s):  
Mechanical Properties ◽  
Silicon Dioxide ◽  
Epoxy Resin ◽  
Mechanical Stability ◽  
Rice Husks ◽  
Cellulose Fibres ◽  
Plant Parts ◽  
Sodium Magnesium ◽  
Excellent Adhesion ◽  
Individual Nanoparticles

Rice husks (RH) are characterized by a high content of silicon dioxide up to 23 wt. %. Silica in the form of nanoparticles creates surface layers formed in various plant parts which ensure protective properties and mechanical stability. These nanoparticles with a dimension in the range of tens of nanometers, are formed during biochemical processes and photosynthesis. Individual nanoparticles are interconnected between themselves and between layers with organic phase via cellulose fibres. Accompanying ions mainly potassium, calcium, sodium, magnesium and aluminium extremely important for plant growth have also been identified in rice husks. In this research paper we investigated mechanical properties of composite epoxy resin material, which was composed of ChS Epoxy 520 filled with silica obtained from rice husks. Nanoparticles of silicon dioxide with the size in dozen of nanometers were prepared by calcination of raw plant parts. We found that the 0.1 phr of filling (0.01 g of filler + 10 g of epoxy) demonstrated a significant increase of wear resistance and decrease of coefficient of friction. An excellent adhesion between epoxy resin and silica nanoparticles was also observed. The silicon dioxide in epoxy resin plays the role of the hard phase, which transfers part of the load and protects the surface of polymer against wear. The presence of this filler does not change the mechanical properties of the original resin.

Local Refractive Index Dependence of Plasmon Resonance Spectra from Individual Nanoparticles

Nano Letters ◽  
2003 ◽  
Vol 3 (4) ◽  
pp. 485-491 ◽  
Author(s):  
Jack J. Mock ◽  
David R. Smith ◽  
Sheldon Schultz
Keyword(s):  
Refractive Index ◽  
Plasmon Resonance ◽  
Individual Nanoparticles ◽  
Local Refractive Index

Depth of field extension in a low power microscope objective

2009 ◽  
Author(s):  
Pantazis Mouroulis ◽  
Byron E. van Gorp ◽  
Holly A. Bender ◽  
Eric E. Bloemhof ◽  
Julia Nichols ◽  
...  
Keyword(s):  
Low Power ◽  
Field Extension ◽  
Depth Of Field ◽  
Microscope Objective

Fluorescence Imaging for Ultrafiltration of Individual Nanoparticles from a Colloidal Solution in Track Membranes

2018 ◽  
Vol 85 (5) ◽  
pp. 916-922 ◽  
Author(s):  
S. I. Kulik ◽  
I. Yu. Eremchev ◽  
P. Yu. Apel ◽  
D. L. Zagorski ◽  
A. V. Naumova
Keyword(s):  
Fluorescence Imaging ◽  
Colloidal Solution ◽  
Track Membranes ◽  
Individual Nanoparticles

Magnetization Reversal in Individual Nanoparticles

2005 ◽  
Author(s):  
W. Wernsdorfer ◽  
E.B. Orozco ◽  
B. Barbara ◽  
K. Hasselbach ◽  
A. Benoit
Keyword(s):  
Magnetization Reversal ◽  
Individual Nanoparticles

scholarly journals Strong light-matter coupling in dielectric metasurfaces

2020 ◽  
Vol 238 ◽  
pp. 05004
Author(s):  
Gabriel W. Castellanos ◽  
Shunsuke Murai ◽  
T.V. Raziman ◽  
Shaojun Wang ◽  
Mohammad Ramezani ◽  
...  
Keyword(s):  
Strong Coupling ◽  
Silicon Nanoparticles ◽  
Organic Molecules ◽  
Quality Factors ◽  
Low Loss ◽  
Strong Light ◽  
Large Coupling ◽  
Exciton Polaritons ◽  
Coupling Strengths ◽  
Individual Nanoparticles

We demonstrate the strong coupling between excitons in organic molecules and all-dielectric metasurfaces formed by arrays of silicon nanoparticles supporting Mie surface lattice resonances (MSLRs). Compared to Mie resonances in individual nanoparticles, MSLRs have extended mode volumes and much larger quality factors, which enables to achieve collective strong coupling with very large coupling strengths and Rabi energies. Moreover, due to the electric and magnetic character of the MSLR given by the Mie resonance, we show that the hybridization of the exciton with the MSLR results in exciton-polaritons that inherit this character as well. Our results demonstrate the potential of all-dielectric metasurfaces as novel platform to investigate and manipulate exciton-polaritons in low-loss polaritonic devices.

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