A New Intramolecular Charge Transfer Material for Nonlinear Optics: Piperonal Derivatives

1987 ◽  
Vol 109 ◽  
Author(s):  
Y. Mori ◽  
M. Okamoto ◽  
T. Wada ◽  
H. Sasabe
Keyword(s):  
Charge Transfer ◽  
Second Harmonic Generation ◽  
Semiconductor Laser ◽  
Harmonic Generation ◽  
Intramolecular Charge Transfer ◽  
Second Harmonic ◽  
Nonlinear Material ◽  
Ethyl Cyano ◽  
Good Crystallinity ◽  
Better Than

ABSTRACTThis paper describes a new organic nonlinear material, piperoniridene ethyl cyano acetate which shows short cut-off wavelength, good nonlinearity (better than POM in powder) and good crystallinity. These features of this compound encourage its application in second harmonic generation (SHG) coupled with semiconductor laser.

[2,2]paracyclophane-bisphthalocyanines: non-classical push-pull systems for second harmonic generation

2005 ◽  
Vol 09 (11) ◽  
pp. 788-793 ◽  
Author(s):  
Andrés de la Escosura ◽  
Christian G. Claessens ◽  
Isabelle Ledoux-Rak ◽  
Joseph Zyss ◽  
M. Victoria Martínez-Díaz ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Second Harmonic Generation ◽  
Structural Feature ◽  
Harmonic Generation ◽  
Significant Role ◽  
Intramolecular Charge Transfer ◽  
Second Harmonic ◽  
Nlo Response ◽  
Pull Systems

The EFISH and HRS responses of a push-pull bisphthalocyanine-[2,2]paracyclophane compound have been measured at 1.9 and 1.06 μm, respectively, obtaining a remarkably high hyperpolarizability β HRS value. Since the two electronically different phthalocyanine chromophores are connected through a non π-conjugated and rigid [2,2]paracyclophane spacer, this result implies an efficient through-space intramolecular charge transfer between them. The results have been compared to that of structurally related, unsymmetrically substituted phthalocyanines 2-5, bearing either [2,2]paracyclophane or phenyl substituents. In these cases, the [2,2]paracycloplane does not play a significant role in the NLO response, being that the nature of the peripheral sustituents on the phthalocyanine is the most influent structural feature.

Second Harmonic Generation from a Nanopatterned Isotropic Nonlinear Material

Nano Letters ◽  
2006 ◽  
Vol 6 (5) ◽  
pp. 1027-1030 ◽  
Author(s):  
Wenjun Fan ◽  
Shuang Zhang ◽  
N.-C. Panoiu ◽  
A. Abdenour ◽  
S. Krishna ◽  
...  
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Nonlinear Material

Heterodyne-detected and ultrafast time-resolved second-harmonic generation for sensitive measurements of charge transfer

2014 ◽  
Vol 39 (14) ◽  
pp. 4274 ◽  
Author(s):  
Daniel E. Wilcox ◽  
Matthew E. Sykes ◽  
Andrew Niedringhaus ◽  
Max Shtein ◽  
Jennifer P. Ogilvie
Keyword(s):  
Charge Transfer ◽  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Time Resolved

Sensitive oxygen detection using second harmonic generation of a telecommunication band semiconductor laser

2015 ◽  
Author(s):  
Kazuo Maeda ◽  
Shunsuke Kuwabara ◽  
Ryutaro Yamashita ◽  
Ryuta Someya ◽  
Kazuyoku Tei ◽  
...  
Keyword(s):  
Second Harmonic Generation ◽  
Semiconductor Laser ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Oxygen Detection

scholarly journals Ultraviolet second harmonic generation from Mie-resonant lithium niobate nanospheres

Nanophotonics ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Jiayi Wang ◽  
Zhuojun Liu ◽  
Jin Xiang ◽  
Bo Chen ◽  
Yuming Wei ◽  
...  
Keyword(s):  
Lithium Niobate ◽  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Nonlinear Material ◽  
Nonlinear Susceptibility ◽  
Light Sources ◽  
Frequency Converters ◽  
Nanophotonic Devices ◽  
Fs Laser

Abstract Lithium niobate (LN), as a nonlinear material with a large nonlinear susceptibility, has been widely employed in second harmonic generation (SHG) up to ultraviolet (UV) frequency range due to its broad low-absorption window. In nanophotonics, it is possible to harness the Mie resonances associated with the single dielectric particles to boost the nonlinear light–matter interactions. Here, we fabricate single Mie-resonant LN nanospheres on a SiO2 substrate via the femtosecond (fs) laser ablation technique. By exploiting the magnetic dipole (MD) Mie resonance, UV SHG from the LN nanosphere is significantly enhanced with a measured conversion efficiency of 4.45 × 10−8 under the excitation of an fs laser at 750 nm. The single LN nanospheres achieved in this work could serve as Mie resonators for building nonlinear nanophotonic devices such as frequency converters and quantum light sources, etc.

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