Charge transfer states in GeO2-doped silicate fiber-optic waveguides and their role in second-harmonic generation

JETP Letters ◽  
1998 ◽  
Vol 68 (10) ◽  
pp. 775-778 ◽  
Author(s):  
B. P. Antonyuk ◽  
V. N. Denisov ◽  
B. N. Mavrin
Keyword(s):  
Charge Transfer ◽  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Fiber Optic ◽  
Second Harmonic ◽  
Fiber Optic Waveguides

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

[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.

scholarly journals Ferroelectric Polarization and Second Harmonic Generation in Supramolecular Cocrystals with Two Axes of Charge-Transfer

2017 ◽  
Vol 139 (27) ◽  
pp. 9186-9191 ◽  
Author(s):  
Ashwin Narayanan ◽  
Dennis Cao ◽  
Laszlo Frazer ◽  
Alok S. Tayi ◽  
Anthea K. Blackburn ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Ferroelectric Polarization
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