1. Particle Characteristics and Measurement  1.13 Optical Properties  1.13.3 Photophoresis, Optical Tweezers, and Photoacoustics

2021 ◽  
Vol 58 (10) ◽  
pp. 557-567
Author(s):  
Hiroyuki Shinto ◽  
Tomonori Fukasawa
Nanoscale ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 1680-1687 ◽  
Author(s):  
Fei Han ◽  
Thomas Armstrong ◽  
Ana Andres-Arroyo ◽  
Danielle Bennett ◽  
Alex Soeriyadi ◽  
...  

We report on the characterisation of the optical properties and dynamic behaviour of optically trapped single stimuli-responsive plasmonic nanoscale assemblies.


Nanoscale ◽  
2020 ◽  
Vol 12 (8) ◽  
pp. 5031-5037 ◽  
Author(s):  
Rfaqat Ali ◽  
Felipe A. Pinheiro ◽  
Rafael S. Dutra ◽  
Felipe S. S. Rosa ◽  
Paulo A. Maia Neto

This method is particularly useful to probe the chiral optical response of single nanoparticles, each and every with its unique handedness and optical properties.


2019 ◽  
Vol 176 ◽  
pp. 102117 ◽  
Author(s):  
Dariusz Stramski ◽  
Rick A. Reynolds ◽  
Pierre Gernez ◽  
Rüdiger Röttgers ◽  
Oliver Wurl

Author(s):  
K. Tsuno ◽  
T. Honda ◽  
Y. Harada ◽  
M. Naruse

Developement of computer technology provides much improvements on electron microscopy, such as simulation of images, reconstruction of images and automatic controll of microscopes (auto-focussing and auto-correction of astigmatism) and design of electron microscope lenses by using a finite element method (FEM). In this investigation, procedures for simulating the optical properties of objective lenses of HREM and the characteristics of the new lens for HREM at 200 kV are described.The process for designing the objective lens is divided into three stages. Stage 1 is the process for estimating the optical properties of the lens. Firstly, calculation by FEM is made for simulating the axial magnetic field distributions Bzc of the lens. Secondly, electron ray trajectory is numerically calculated by using Bzc. And lastly, using Bzc and ray trajectory, spherical and chromatic aberration coefficients Cs and Cc are numerically calculated. Above calculations are repeated by changing the shape of lens until! to find an optimum aberration coefficients.


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