Aggregation/Viscosity-Induced Emission and Third-Order Nonlinear Optical Signal Inversion in a TICT System

2020 ◽  
Vol 124 (41) ◽  
pp. 22684-22691
Author(s):  
Qiuchen Peng ◽  
Linpo Yang ◽  
Yuanyuan Li ◽  
Yu Zhang ◽  
Tianhao Li ◽  
...  
Keyword(s):  
Nonlinear Optical ◽  
Optical Signal ◽  
Third Order ◽  
Signal Inversion

Diphenyl-1-pyrenylphosphine: photo-triggered AIE/ACQ transition with remarkable third-order nonlinear optical signal change

2020 ◽  
Vol 56 (30) ◽  
pp. 4220-4223 ◽  
Author(s):  
Chang Xing ◽  
Jianxun Liu ◽  
Fang Chen ◽  
Yuanyuan Li ◽  
Changjian Lv ◽  
...  
Keyword(s):  
Nonlinear Optical ◽  
Optical Signal ◽  
Third Order ◽  
Signal Change

A propeller-like pyrene derivative is reported, which exhibits a unique photo-triggered AIE/ACQ transition with a remarkable third-order nonlinear optical signal change.

scholarly journals Ultrafast Third-Order Nonlinear Optical Response Excited by fs Laser Pulses at 1550 nm in GaN Crystals

Materials ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3194
Author(s):  
Adrian Petris ◽  
Petronela Gheorghe ◽  
Tudor Braniste ◽  
Ion Tiginyanu
Keyword(s):  
Harmonic Generation ◽  
Nonlinear Optical ◽  
Laser Pulses ◽  
Third Harmonic Generation ◽  
High Repetition Rate ◽  
Third Order ◽  
Third Harmonic ◽  
The Third ◽  
High Repetition ◽  
Gan Crystal

The ultrafast third-order optical nonlinearity of c-plane GaN crystal, excited by ultrashort (fs) high-repetition-rate laser pulses at 1550 nm, wavelength important for optical communications, is investigated for the first time by optical third-harmonic generation in non-phase-matching conditions. As the thermo-optic effect that can arise in the sample by cumulative thermal effects induced by high-repetition-rate laser pulses cannot be responsible for the third-harmonic generation, the ultrafast nonlinear optical effect of solely electronic origin is the only one involved in this process. The third-order nonlinear optical susceptibility of GaN crystal responsible for the third-harmonic generation process, an important indicative parameter for the potential use of this material in ultrafast photonic functionalities, is determined.

Synthesis, characterization and third order nonlinear optical properties of trans-A2B-tpye cobalt corroles

2021 ◽  
Author(s):  
Guifen Lu ◽  
Peng Zhang ◽  
Yuanyuan Fang ◽  
Yongjie Gao ◽  
Qikang Hu
Keyword(s):  
Optical Properties ◽  
Nonlinear Optical ◽  
Nonlinear Optical Properties ◽  
Para Position ◽  
Third Order

A series of trans-A2B cobalt corroles, represented as [Cor(p-RPh)2(p-NO2Ph)]Co(PPh3) (1-5), where Cor is trianion of corrole, R is a CN, F, CH3, C(CH3)3 or PhCH2O on the para-position of the...

scholarly journals Tunable Nonlinear Optical Property of MnS Nanoparticles with Different Size and Crystal Form

Nanomaterials ◽  
2019 ◽  
Vol 10 (1) ◽  
pp. 34
Author(s):  
Zhihao Zhang ◽  
Pengchao Li ◽  
Yuzong Gu
Keyword(s):  
Optical Property ◽  
Nonlinear Optical ◽  
Nonlinear Optical Property ◽  
Nonlinear Refraction ◽  
Synthesis Method ◽  
Crystal Form ◽  
Optical Nonlinearity ◽  
Photon Absorption ◽  
Third Order ◽  
Crystal Forms

It is significant to study the reason that semiconductor material has adjustable third-order optical nonlinearity through crystal form and dimensions are changed. αMnS nanoparticles with different crystal forms and sizes were successfully prepared by one-step hydrothermal synthesis method and their size-limited third-order nonlinear optical property was tested by Z-scan technique with 30 ps laser pulses at 532 nm wavelength. Nanoparticles of different crystal forms exhibited different NLO (nonlinear optical) responses. γMnS had stronger NLO response than αMnS because of higher fluorescence quantum yield. Two-photon absorption and the nonlinear refraction are enhanced as size of nanoparticlesreduced. The nanoparticles had maximum NLO susceptibility which was 3.09 × 10−12 esu. Susceptibility of αMnS increased about nine times than that of largest nanoparticles. However, it was reduced when size was further decreased. This trend was explained by the effects of light induced dipole moments. And defects in αMnS nanoparticles also had effect on this nonlinear process. MnS nanoparticles had potential application value in optical limiting and optical modulation.

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