scholarly journals Synthesis of Core/Shell CuO-Zno Nanoparticles and Their Second-Harmonic Generation Performance / Kodols/Čaula Cuo-Zno Nanodaļiņu Sintēze Un To Spēja Ģenerēt Otrās Harmonikas Signālu

2015 ◽  
Vol 52 (5) ◽  
pp. 41-46 ◽  
Author(s):  
E. Tamanis ◽  
E. Sledevskis ◽  
A. Ogurcovs ◽  
V. Gerbreders ◽  
V. Paskevics
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Zno Nanoparticles ◽  
Atomic Oxygen ◽  
Second Harmonic ◽  
Exciting Radiation ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Harmonic Intensity ◽  
Core Shell Nanoparticles

Abstract The present paper presents the method for obtaining core/shell CuO-ZnO nanoparticles and nanocoatings by using a commercially available vacuum coating system. Initially generated Cu-Zn core/shell nanoparticles have been oxidised with a highly reactive atomic oxygen beam. Second-harmonic generation has been observed in the obtained samples. The dependence of second- harmonic intensity on the wavelength of the exciting radiation is shown in the paper.

scholarly journals Monitoring the growth dynamics of colloidal gold-silver core-shell nanoparticles using in situ second harmonic generation and extinction spectroscopy

2019 ◽  
Vol 151 (22) ◽  
pp. 224701 ◽  
Author(s):  
Jeewan C. Ranasinghe ◽  
Asela S. Dikkumbura ◽  
Prakash Hamal ◽  
Min Chen ◽  
Rami A. Khoury ◽  
...  
Keyword(s):  
Harmonic Generation ◽  
Colloidal Gold ◽  
Second Harmonic ◽  
Growth Dynamics ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Gold Silver ◽  
Core Shell Nanoparticles ◽  
Silver Core

scholarly journals Second-harmonic generation of ZnO nanoparticles synthesized by laser ablation of solids in liquids

2018 ◽  
Vol 99 ◽  
pp. 118-123 ◽  
Author(s):  
Israel Rocha-Mendoza ◽  
Santiago Camacho-López ◽  
Yryx Y. Luna-Palacios ◽  
Yasmín Esqueda-Barrón ◽  
Miguel A. Camacho-López ◽  
...  
Keyword(s):  
Laser Ablation ◽  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Zno Nanoparticles ◽  
Second Harmonic

Plasmonic Core–Shell Nanowires for Enhanced Second-Harmonic Generation

Plasmonics ◽  
2012 ◽  
Vol 8 (1) ◽  
pp. 115-120 ◽  
Author(s):  
J. Richter ◽  
A. Steinbrück ◽  
T. Pertsch ◽  
A. Tünnermann ◽  
R. Grange
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Core Shell ◽  
Shell Nanowires

Second Harmonic Generation in Core (Shell) γ-Fe2O3 (Au) Nanoparticles

2009 ◽  
Vol 152-153 ◽  
pp. 508-511 ◽  
Author(s):  
I.A. Kolmychek ◽  
T.V. Murzina ◽  
S. Fourier ◽  
J. Wouters ◽  
V.K. Valev ◽  
...  
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Plasmon Resonance ◽  
Rayleigh Scattering ◽  
Au Nanoparticles ◽  
Second Harmonic ◽  
Core Shell ◽  
Single Nanoparticle

The films containing core (shell) γ-Fe2O3 (Au) nanoparticles that possess the plasmon resonance at the wavelength 550 nm are prepared. The second harmonic generation in these structures is shown to be diffuse and depolarized, that is typical for the hyper-Rayleigh scattering.. The studies of the magnetization-induced second harmonic generation shows that the ratio of the magnetic to nonmagnetic components of the hyperpolarizability of a single nanoparticle, γM/γ0 ~ 0.4 in the field of about 3 kOe.

Article

1998 ◽  
Vol 76 (11) ◽  
pp. 1616-1632
Author(s):  
Bozena Borecka-Bednarz ◽  
Alan V Bree ◽  
Brian O Patrick ◽  
John R Scheffer ◽  
James Trotter
Keyword(s):  
Solid State ◽  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Crystallographic Analysis ◽  
Organic Salts ◽  
Harmonic Intensity ◽  
Space Groups ◽  
Order Of Magnitude ◽  
Optically Pure

Second-harmonic generation in the solid state is restricted to materials that crystallize in non-centrosymmetric space groups. Unfortunately, the vast majority of solids crystallize in centrosymmetric space groups and are therefore SHG-inactive. The requirement for solid-state asymmetry is addressed in a new series of organic salts. The acid p-nitrophenylglycine, SHG-inactive due to its centrosymmetric (P1) packing, was coupled to six optically pure amines to form salts and (or) complexes that, by virtue of their chiral counterion, crystallized in non-centrosymmetric space groups. The 1064 nm output from a Nd:YAG laser produced 532 nm second-harmonic generation from each of the six salts, with three of the salts producing second-harmonic intensities at least an order of magnitude greater than that of our standard, urea. X-ray crystallographic analysis was carried out on five of the six salts, and an attempt was made to rationalize the second-harmonic intensity of each of these five salts based on the orientation of its molecular charge-transfer axis in the unit cell and on its chromophore density.Key words: second-harmonic generation, nonlinear optics, chiral organic salts, crystal structures.

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