Symmetry breaking in the second harmonic field of self-assembled metallic nanostructures

2015 ◽  
Author(s):  
A. Belardini ◽  
A. Benedetti ◽  
M. Centini ◽  
E. Fazio ◽  
M. Bertolotti ◽  
...  
Keyword(s):  
Symmetry Breaking ◽  
Second Harmonic ◽  
Metallic Nanostructures ◽  
Harmonic Field ◽  
Self Assembled

Second harmonic generation on self-assembled tilted gold nanowires

2015 ◽  
Vol 178 ◽  
pp. 357-362 ◽  
Author(s):  
Alessandro Belardini ◽  
Marco Centini ◽  
Grigore Leahu ◽  
Eugenio Fazio ◽  
Concita Sibilia ◽  
...  
Keyword(s):  
Symmetry Breaking ◽  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Incidence Angle ◽  
Normal Incidence ◽  
Gold Nanowires ◽  
Powerful Method ◽  
Pulsed Light ◽  
Self Assembled

Here we present measurements on a metasurface composed by tilted gold nanowires. The metasurface can induce an optical chiral response of the whole sample when the light impinges on the sample out of the normal incidence angle. In order to investigate the symmetry breaking induced by the geometry, we measured the second harmonic generation (SHG) signal generated by circular polarized pulsed light. This technique has demonstrated to be a powerful method in order to investigate the chiral morphology of nanostructures.

Enhanced Second Harmonic Generation from an Organic Self-Assembled Eutectic Binary Mixture: A Case Study with 3-Nitrobenzoic and 3,5-Dinitrobenzoic Acids

2015 ◽  
Vol 15 (2) ◽  
pp. 946-960 ◽  
Author(s):  
Florent Simon ◽  
Simon Clevers ◽  
Gabin Gbabode ◽  
Nicolas Couvrat ◽  
Valérie Agasse-Peulon ◽  
...  
Keyword(s):  
Binary Mixture ◽  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Self Assembled

Second Harmonic Generation Investigation of Symmetry Breaking and Flexoelectricity Induced by Nanoindentations in SrTiO 3

2019 ◽  
Vol 29 (36) ◽  
pp. 1901266 ◽  
Author(s):  
Gitanjali Kolhatkar ◽  
Mischa Nicklaus ◽  
Azza Hadj Youssef ◽  
Cristian Cojocaru ◽  
Maxime Rivard ◽  
...  
Keyword(s):  
Symmetry Breaking ◽  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic

Second Order Nonlinear Optical Thin Films Fabricated from Electric Field-Assisted Electrostatic Self-Assembled Monolayer Method

1999 ◽  
Vol 561 ◽  
Author(s):  
Y. Liu ◽  
R.O. Claus ◽  
D. Marciu ◽  
C. Figura ◽  
J.R. Heflin
Keyword(s):  
Thin Films ◽  
Electric Field ◽  
Nonlinear Optical ◽  
Second Harmonic ◽  
New Method ◽  
Multilayer Thin Films ◽  
Self Assembled Monolayer ◽  
Harmonic Intensity ◽  
Self Assembled ◽  
First Time

ABSTRACTA new method for the build-up of non-centrosymmetric multilayer thin films has been developed for the first time using an electric field-assisted electrostatic self-assembled monolayer (EF-ESAM) technique. An increase by 116% of the second-harmonic intensity of the films has been observed in comparison with that of ESAM film.

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