Determination of the collision-induced depolarized Raman light scattering cross section of the argon diatom

1981 ◽  
Vol 59 (10) ◽  
pp. 1418-1420 ◽  
Author(s):  
Fabrizio Barocchi ◽  
Marco Zoppi ◽  
Michael H. Proffitt ◽  
Lothar Frommhold
Keyword(s):  
Light Scattering ◽  
Cross Section ◽  
Scattering Cross Section ◽  
Excitation Wavelength ◽  
Reference Standard ◽  
Absolute Value ◽  
Scattering Cross ◽  
Raman Light Scattering ◽  
External Reference

We report two independent calibrations of the argon diatom Raman light scattering cross section at 20 cm−1 shift (Stokes side), based on rotational Raman lines of hydrogen and nitrogen as an external reference standard. The precision is about 5% on an absolute scale, and the agreement relative to each other even better. The excitation wavelength is 5145 Å, but calibrations at 4880 and 4579 Å are seen to be consistent if the dominating factor 1/λ4 (λ = wavelength) is accounted for. Thus, a useful secondary standard for the calibration of similar spectra is obtained, and a long-standing question as to the absolute value of the diatom scattering cross section appears to be settled.

Determination of the absolute scattering cross section for the reaction D + H2(v=1) → HD+H at 0.33 eV

1987 ◽  
Vol 137 (6) ◽  
pp. 524-532 ◽  
Author(s):  
R. Götting ◽  
V. Herrero ◽  
J.P. Toennies ◽  
M. Vodegel
Keyword(s):  
Cross Section ◽  
Scattering Cross Section ◽  
Scattering Cross ◽  
The Absolute

A determination of the elastic-scattering cross section from the reaction K−n → pK−π− at 3 GeV/c

1970 ◽  
Vol 24 (1) ◽  
pp. 211-220 ◽  
Author(s):  
A.M. Bakker ◽  
W. Hoogland ◽  
J.C. Kluyver ◽  
G. Giacomelli ◽  
P. Lugaresi-Serra ◽  
...  
Keyword(s):  
Elastic Scattering ◽  
Cross Section ◽  
Scattering Cross Section ◽  
Scattering Cross ◽  
Elastic Scattering Cross Section

Tunable optical properties of silver–dielectric–silver nanoshell

2014 ◽  
Vol 28 (20) ◽  
pp. 1450134 ◽  
Author(s):  
Farzad Shirzaditabar ◽  
Maryam Saliminasab
Keyword(s):  
Optical Properties ◽  
Light Scattering ◽  
Cross Section ◽  
Resonance Wavelength ◽  
Scattering Cross Section ◽  
Core Radius ◽  
Dielectric Thickness ◽  
Scattering Cross ◽  
Tunable Optical Properties ◽  
Silver Core

Tunable optical properties of silver–dielectric–silver nanoshell including surface plasmon resonance (SPR) and resonance light scattering (RLS) based on quasi-static theory are investigated. When the silver core radius increases, the longer resonance wavelength red shifts and light scattering cross-section decreases whereas the shorter resonance wavelength blue shifts and the light scattering cross-section increases. The effect of middle dielectric thickness on the light scattering cross-section of nanoshell is different from those of the silver core radius changes. As middle dielectric radius increases, the longer resonance wavelength first blue shifts and then red shifts and the light scattering cross-section increases whereas the shorter resonance wavelength always red shifts and the light scattering cross-section decreases. The sensitivity of RLS to the refractive index of embedding medium is also reported. As the silver core radius increases, the sensitivity of silver–dielectric–silver nanoshell decreases whereas increasing the middle dielectric thickness leads to increase the sensitivity of silver–dielectric–silver nanoshell. Tunable optical properties of silver–dielectric–silver nanoshell verify the biosensing potential of this nanostructure.

scholarly journals Improve The Effective Resonance Light Scattering Of Three-Layered Plasmonic Au@Dielectric@Ag Bimetallic Nanoshells

2021 ◽  
Author(s):  
Jian Zhu ◽  
Shu-min Zhao
Keyword(s):  
Dielectric Constant ◽  
Light Scattering ◽  
Cross Section ◽  
Resonance Light Scattering ◽  
Scattering Cross Section ◽  
Strong Light ◽  
Static Approximation ◽  
Scattering Intensity ◽  
Scattering Cross ◽  
Separate Layer

Abstract The strong light scattering from SPR has received an extraordinary attention due to the useful applications in photodetectors, cell and biomedical imaging. However, the applications using light scattering require a high scattering cross-section along with low absorption losses near the resonance wavelength. In this paper, effective plasmonic scattering of three-layered Au-Ag bimetallic nanoshells with a dielectric separate layer has been studied using the quasi-static approximation of classical electrodynamics. Because of the surface plasmon resonance (SPR)-induced intense light absorption, the effective scattering intensity is much weaker than that of scattering cross section. However, the effective scattering intensity could be improved by tuning the geometric dimension and local dielectric environment of the nanostructure. It has been found that the greatest effective scattering takes place when the outer Ag nanoshell has a thick thickness or the dielectric separate layer has a small dielectric constant. The effective scattering also depends on the inner Au sphere radius and outer surrounding dielectric constant. Because of the mode transformation of the SPR, the effective scattering could also be greatly improved when the inner Au sphere has a very small or large size. However, the effective scattering intensity changes non-monotonously as the surrounding dielectric constant increases. The greatest effective scattering could be obtained when the surrounding dielectric constant has an intermediate value. This tunable effective plasmonic scattering of Au@Ag three-layered nanoshells presents a potential for design and fabrication of plasmonic optical nanodevice based on resonance light scattering.

Light scattering cross-section - summing of Mie-series

1994 ◽  
Vol 50 (2) ◽  
pp. 140-141 ◽  
Author(s):  
Ya I Granovskii ◽  
M Stoń
Keyword(s):  
Light Scattering ◽  
Cross Section ◽  
Scattering Cross Section ◽  
Scattering Cross
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