scholarly journals The Role of Surface Plasmon Resonance of Gold Nanoparticles for the Enhancement of Second Harmonic Generation of Nonlinear Chromophores

Inorganics ◽  
2019 ◽  
Vol 7 (5) ◽  
pp. 64 ◽  
Author(s):  
Anu Singh Bisht ◽  
Khuyen Hoang-Thi ◽  
Isabelle Ledoux-Rak ◽  
Hynd Remita ◽  
Frédéric Dumur ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Surface Plasmon Resonance ◽  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Phenyl Ring ◽  
Nonlinear Optical ◽  
Second Harmonic ◽  
Nlo Response ◽  
Spherical Gold Nanoparticles

A significant enhancement of the second harmonic generation (SHG) from second-order nonlinear optical (NLO) dyes in solution has been evidenced when these dyes were grafted onto the surface of spherical gold nanoparticles (AuNPs), as compared to their NLO response without AuNPs. The length, as well as the nature of the spacers between the gold particle and the chromophore, is shown to play an important role, a benzene linker being more favorable to AuNP-4-dimethylamino-N-methyl-4-stilbazolium tosylate (DAST) interactions, as illustrated by a higher exaltation of the NLO response for DAST molecules linked to AuNP via a phenyl ring as compared to their equivalent with a CH2–CH2 link.

scholarly journals Metal-Free Perovskites for Non-Linear Optical Materials

2019 ◽  
Author(s):  
Thomas W. Kasel ◽  
Zeyu Deng ◽  
Austin Mroz ◽  
Christopher H. Hendon ◽  
Keith Butler ◽  
...  
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
First Principles Calculations ◽  
Halide Anion ◽  
Metal Free ◽  
Organic Group ◽  
Nlo Response ◽  
Earth Abundant

<div> <div> <div> <p>We identify the existence of nonlinear optical (NLO) activity in a number of novel ABX3-type metal-free perovskites, where A is a highly tuneable organic cation, B is a NH4 cation and X a halide anion. Through systematic first-principles calculations, we identify important trends to chart the second-harmonic generation of this class of materials. We study three perovskites MDABCO- NH4 I3 , CNDABCO-NH4 I3 and ODABCO-NH4 I3 for use as deep-UV second-harmonic generation materials. We identify the role of the dipole moment imparted by the organic group on the A cation as an important parameter to tune the NLO properties of these materials. We apply this knowledge functionalising the organic group DABCO with the highly polar cyanide CN group, and we demonstrate a significant improvement of the NLO response in this family of materials. These findings can accelerate the application of metal free perovskites as inexpensive, non-toxic, earth-abundant materials for the next generation of optical communication applications. </p> </div> </div> </div>

BaGa2SnSe6: a new phase-matchable IR nonlinear optical material with strong second harmonic generation response

2015 ◽  
Vol 3 (42) ◽  
pp. 10998-11004 ◽  
Author(s):  
Xiaoshuang Li ◽  
Chao Li ◽  
Pifu Gong ◽  
Zheshuai Lin ◽  
Jiyong Yao ◽  
...  
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Nonlinear Optical ◽  
Second Harmonic ◽  
Optical Material ◽  
Type I ◽  
Nonlinear Optical Material ◽  
Nlo Response ◽  
New Phase

BaGa2SnSe6 exhibits a very strong NLO response of ∼5.2 AgGaS2 and shows type-I phase-matchable behavior.

scholarly journals An investigation on the second-order nonlinear optical response of cationic bipyridine or phenanthroline iridium(iii) complexes bearing cyclometallated 2-phenylpyridines with a triphenylamine substituent

2018 ◽  
Vol 47 (25) ◽  
pp. 8292-8300 ◽  
Author(s):  
Claus Hierlinger ◽  
David B. Cordes ◽  
Alexandra M. Z. Slawin ◽  
Alessia Colombo ◽  
Claudia Dragonetti ◽  
...  
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Nonlinear Optical ◽  
Second Harmonic ◽  
Optical Response ◽  
Second Order ◽  
Polymeric Film ◽  
Nonlinear Optical Response ◽  
Nlo Response

A novel cationic Ir(iii) complex, characterized by a large NLO response, can be incorporated into a polymeric film leading to a good second-harmonic generation.

Large second harmonic generation from hollow gold nanoprisms: role of plasmon hybridization and structural effects

2017 ◽  
Vol 19 (28) ◽  
pp. 18394-18399 ◽  
Author(s):  
Bidhan Hazra ◽  
Kamalika Das ◽  
Manabendra Chandra
Keyword(s):  
Optical Properties ◽  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Nonlinear Optical ◽  
Second Harmonic ◽  
Plasmon Hybridization ◽  
Structural Effects ◽  
Structure And Morphology ◽  
Gold Nanoprisms

The structure and morphology of nanomateials strongly influence their nonlinear optical properties.

scholarly journals Investigation on synthesis, structural and nonlinear optical responses of cadmium selenide coated with gold nanoparticles induced by femtosecond laser excitation

2021 ◽  
Vol 3 (5 (111)) ◽  
pp. 13-18
Author(s):  
Nadia Mohammed Jassim ◽  
Nada A. Kareem ◽  
Nada Ismael Ibrahim
Keyword(s):  
Gold Nanoparticles ◽  
Second Harmonic Generation ◽  
Cadmium Selenide ◽  
Harmonic Generation ◽  
Nonlinear Optical ◽  
Second Harmonic ◽  
Dark Field ◽  
Hybrid Nanostructures ◽  
Au Nps ◽  
Au Nanowires

Nonlinear optical signal enhancement cannot be achieved by using semiconductor materials alone. Here, we show that the recently discovered nonlinear optical behavior of plasmonic nanoparticles and hybrid nanowires enables an enhanced nonlinear optical response. A synthesis, characterization, and nonlinear optical response of synthesized hybrid nanowires structures were studied. The growth of gold nanoparticles (Au NPs) onto cadmium selenide nanowires CdSe NWs with different concentrations of gold nanoparticles coating prepared via an impregnation technique. Au nanoparticles in the CdSe/Au nanowires were uniformly dispersed on the CdSe nanowire surface. The surface morphologies and the propagation manner of hybrid nanostructures were used for transmission electron microscopy (TEM) to study the optical properties of pure and hybrid nanostructures. Dark-field scattering microscopy was used to characterize single CdSe NW and confirm the coating of hybrid CdSe/Au nanowires and characterize the concentration effect of gold nanoparticles. The dark-field scattering spectrum (DFSS) reference to the surface plasmon resonance of nearer Au NPs was observed at ca. 800 nm. By making a comparison between a single cadmium selenide with and without gold nanoparticles coating, hybrid CdSe/Au nanowires exhibit sufficient quality to produce second-harmonic generation stimulated with a pulsed, linearly polarized pump-light from a femtosecond Ti-sapphire laser. The estimated improvement of the second-harmonic generation signal is about ~ 1.8 times, ~ 5.5 times, ~ 6.9 times for low, moderate and full coating of gold nanoparticles, which was mainly due to the high quality of synthesis techniques and good dispersion of gold nanoparticles on CdSe nanowires

Optimization of second harmonic generation of gold nanospheres and nanorods in aqueous solution: the dominant role of surface area

2016 ◽  
Vol 18 (4) ◽  
pp. 3352-3356 ◽  
Author(s):  
Hoang Minh Ngo ◽  
Phuong Phong Nguyen ◽  
Isabelle Ledoux-Rak
Keyword(s):  
Aqueous Solution ◽  
Gold Nanoparticles ◽  
Second Harmonic Generation ◽  
Surface Area ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Dominant Role ◽  
First Hyperpolarizability ◽  
Gold Nanospheres

Gold nanoparticles display exceptionally strong β values. We demonstrated that the first hyperpolarizability (β) strongly depends on surface area of gold nanoparticles.

Impressive second harmonic generation response in a novel phase-matchable NLO-active MOF derived from achiral precursors

2019 ◽  
Vol 7 (21) ◽  
pp. 6217-6221 ◽  
Author(s):  
Yu-Xiao Zhang ◽  
Bing-Xuan Li ◽  
Hua Lin ◽  
Zuju Ma ◽  
Xin-Tao Wu ◽  
...  
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Nonlinear Optical ◽  
Second Harmonic ◽  
Nlo Response ◽  
Insight Into

Simple yet extraordinary: a novel 1D Zn-based MOF with promising nonlinear optical (NLO) response has been prepared from achiral precursors, which serves as a prototype to theoretically access insight into the origin of the NLO response.

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