Second-harmonic generation from periodic arrays of arbitrary shape plasmonic nanostructures: a surface integral approach

2013 ◽  
Vol 30 (11) ◽  
pp. 2970 ◽  
Author(s):  
Jérémy Butet ◽  
Benjamin Gallinet ◽  
Krishnan Thyagarajan ◽  
Olivier J. F. Martin
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Arbitrary Shape ◽  
Second Harmonic ◽  
Integral Approach ◽  
Plasmonic Nanostructures ◽  
Surface Integral ◽  
Periodic Arrays

scholarly journals Silencing the second harmonic generation from plasmonic nanodimers: A comprehensive discussion

2018 ◽  
Vol 9 ◽  
pp. 2674-2683 ◽  
Author(s):  
Jérémy Butet ◽  
Gabriel D Bernasconi ◽  
Olivier J F Martin
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Surface Defects ◽  
Second Harmonic ◽  
Field Enhancement ◽  
Integral Equation Method ◽  
Plasmonic Nanostructures ◽  
Generation Process ◽  
Surface Integral ◽  
Harmonic Emission

The silencing of the second harmonic generation process from plasmonic nanostructures corresponds to the limited far-field second harmonic radiation despite the huge fundamental electric field enhancement in the interstice between two plasmonic nanoparticles forming a nanodimer. In this article, we report a comprehensive investigation of this effect using a surface integral equation method. Various geometries are considered, including nanoantennas with cylindrical and rectangular arms as well as nanodimers with surface defects. The existence of the silencing of the second harmonic generation from plasmonic nanogaps is first confirmed, and the problem of the origin of the second harmonic light from these plasmonic nanostructures is addressed in detail. Our results show that the distribution of the second harmonic sources, especially on the arm sides, plays a non-negligible role in the overall second harmonic emission. This contribution is induced by retardation effects at the pump wavelength and results in a dipolar second harmonic emission.

scholarly journals Optical characterisation of plasmonic nanostructures on planar substrates using second–harmonic generation

2015 ◽  
Vol 23 (20) ◽  
pp. 26486 ◽  
Author(s):  
Lina Persechini ◽  
Ruggero Verre ◽  
Christopher M. Smith ◽  
Karsten Fleischer ◽  
Igor V. Shvets ◽  
...  
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Plasmonic Nanostructures ◽  
Planar Substrates

scholarly journals Modes interplay and dynamics in the second harmonic generation of plasmonic nanostructures

2019 ◽  
Vol 27 (26) ◽  
pp. 38708 ◽  
Author(s):  
Andrei Kiselev ◽  
Gabriel D. Bernasconi ◽  
Olivier J. F. Martin
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Plasmonic Nanostructures

scholarly journals Giant Second Harmonic Generation Enhancement by Ag Nanoparticles Compactly Distributed on Hexagonal Arrangements

Nanomaterials ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 2394
Author(s):  
Alejandro Gómez-Tornero ◽  
Luisa E. Bausá ◽  
Mariola O. Ramírez
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Frequency Conversion ◽  
Near Infrared ◽  
Second Harmonic ◽  
Field Enhancement ◽  
Infrared Region ◽  
Plasmonic Nanostructures ◽  
Harmonic Intensity ◽  
Dielectric Interfaces

The association of plasmonic nanostructures with nonlinear dielectric systems has been shown to provide useful platforms for boosting frequency conversion processes at metal-dielectric interfaces. Here, we report on an efficient route for engineering light–matter interaction processes in hybrid plasmonic-χ(2) dielectric systems to enhance second harmonic generation (SHG) processes confined in small spatial regions. By means of ferroelectric lithography, we have fabricated scalable micrometric arrangements of interacting silver nanoparticles compactly distributed on hexagonal regions. The fabricated polygonal microstructures support both localized and extended plasmonic modes, providing large spatial regions of field enhancement at the optical frequencies involved in the SHG process. We experimentally demonstrate that the resonant excitation of the plasmonic modes supported by the Ag nanoparticle-filled hexagons in the near infrared region produces an extraordinary 104-fold enhancement of the blue second harmonic intensity generated in the surface of a LiNbO3 crystal. The results open new perspectives for the design of efficient hybrid plasmonic frequency converters in miniaturized devices.

scholarly journals Second harmonic generation enhancement by polarization-matched nanostructures -INVITED

2020 ◽  
Vol 238 ◽  
pp. 05001
Author(s):  
Christoph Dreser ◽  
Emre Gürdal ◽  
Godofredo Bautista ◽  
Anke Horneber ◽  
Xiaorun Zang ◽  
...  
Keyword(s):  
High Resolution ◽  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Frequency Conversion ◽  
Second Harmonic ◽  
Plasmonic Nanostructures ◽  
Nonlinear Crystals ◽  
Laser Optics ◽  
Plasmonic Nanoantennas ◽  
High Resolution Microscopy

Frequency conversion plays an important role in both fundamental and applied nano-optics. Doubling the frequency of light by second harmonic generation (SHG) is a vital process e.g. in laser optics or high-resolution microscopy. SHG can be created through symmetry breaking at plasmonic nanostructures, or the local high electric near-fields of plasmonic nanoantennas can be utilized to further enhance the SHG e.g. from nonlinear crystals. Examples of SHG microscopy using cylindrical vector beams in combination with tilted nanocones and radially symmetric oligomers are shown as well as enhancement studies of the SHG from nonlinear crystals decorated with polarization-matched nanostructures.

Sign in / Sign up

Export Citation Format

Share Document