scholarly journals Second-order nonlinear optical switching with a record-high contrast for a photochromic and thermochromic bistable crystal

2017 ◽  
Vol 8 (11) ◽  
pp. 7751-7757 ◽  
Author(s):  
Xiu-Shuang Xing ◽  
Rong-Jian Sa ◽  
Pei-Xin Li ◽  
Ning-Ning Zhang ◽  
Zhong-Yuan Zhou ◽  
...  
Keyword(s):  
Optical Switching ◽  
Nonlinear Optical ◽  
Second Order ◽  
Switching Behavior ◽  
High Contrast ◽  
Crystalline Compound

The first bistable NLO crystalline compound with both photo- and heat-induced SHG-switching behavior shows a record-high photoinduced SHG-switching contrast.

Nonressonant nonlinear optical switching behavior of Ag monometallic and Ag@Au bimetallic investigated by femtosecond Z-Scan measurements

2021 ◽  
Vol 142 ◽  
pp. 107247
Author(s):  
Sara D.G. Mariano ◽  
Naythalla A.M. Saraiva ◽  
Jean C.S. Costa ◽  
Claudevan A. Sousa ◽  
Nefe J.B. Silva ◽  
...  
Keyword(s):  
Optical Switching ◽  
Nonlinear Optical ◽  
Switching Behavior

scholarly journals Above Room Temperature Reversible Phase Transition Induces Distinct Dielectric and Nonlinear Optical Switching Response Behavior in Crown-Ether-Based Supramolecular Clathrate

Crystals ◽  
2019 ◽  
Vol 9 (4) ◽  
pp. 184 ◽  
Author(s):  
Jing Jing ◽  
Fan Jiang ◽  
Yan-Li Wei ◽  
Chao Shi ◽  
Heng-Yun Ye ◽  
...  
Keyword(s):  
Phase Transition ◽  
Crown Ether ◽  
Optical Switching ◽  
Nonlinear Optical ◽  
Thermal Hysteresis ◽  
Switching Behavior ◽  
Stimuli Responsive ◽  
Scanning Calorimetry ◽  
Reversible Phase Transition ◽  
Reversible Phase

Stimuli-responsive materials with coexisting nonlinear optical (NLO) and dielectric properties are technologically important, which enable simultaneous conversion of optoelectronic properties between different states under external stimuli. By rationally screening guest cations (C6H5NF2)+ in the crown-ether inclusion system, we synthesized a crown-ether supramolecular compound [(C6H5NF2)(18-crown-6)][PF6] (1). Differential scanning calorimetry (DSC) showed that 1 undergoes a reversible phase transition above room temperatures (305 K/292 K), with a thermal hysteresis of 13 K. Temperature-dependent dielectric and NLO measurements show that the compound exhibits two distinct switching response behaviors. Structural analysis indicates that the order–disorder change of the host molecule 18-crown-6 and the guest organic cation during the phase transition induces the dielectric and NLO switching behavior of the compound.

Electron-Transfer Photochromism To Switch Bulk Second-Order Nonlinear Optical Properties with High Contrast

2014 ◽  
Vol 53 (43) ◽  
pp. 11529-11531 ◽  
Author(s):  
Pei-Xin Li ◽  
Ming-Sheng Wang ◽  
Ming-Jian Zhang ◽  
Chen-Sheng Lin ◽  
Li-Zhen Cai ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Optical Properties ◽  
Nonlinear Optical ◽  
Second Order ◽  
Nonlinear Optical Properties ◽  
High Contrast

scholarly journals Transition metals induce control of enhanced NLO properties of functionalized organometallic complexes under laser modulations

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
S. Taboukhat ◽  
N. Kichou ◽  
J.-L. Fillaut ◽  
O. Alévêque ◽  
K. Waszkowska ◽  
...  
Keyword(s):  
Optical Properties ◽  
Transition Metal ◽  
Optical Switching ◽  
Nonlinear Optical ◽  
Optical Data Storage ◽  
Second Order ◽  
Nonlinear Optical Properties ◽  
Organometallic Complexes ◽  
Basis Set ◽  
Optical Data

Abstract The molecular engineering of organometallic complexes has recently attracted renewed interest on account of their potential technological applications for optoelectronics in general and optical data storage. The transition metal which induces control of enhanced nonlinear optical properties of functionalized organometallic complexes versus not only the intensity but also the polarization of the incident laser beam is original and important for all optical switching. This makes organometallic complexes valuable and suitable candidates for nonlinear optical applications. In the present work, we report the synthesis and full characterization of four organometallic complexes consisting of N, N-dibutylamine and azobenzene fragments but differ by auxiliary alkynyl ligands or metal cations. Thus, a ferrocenyl derivative 1 and three ruthenium complexes 2–4 have been prepared. The nonlinear optical properties of the four new azo-based ruthenium and iron organometallic complexes in the solid state, using polymethylmethacrylate as matrix, have been thoroughly studied. This concept is extended to computing the HOMO and LUMO energy levels of the considered complexes, dipole moment, first and second order hyperpolarizabilities using the 6–31 + G(d,p) + LANL2DZ mixed basis set. The second and third nonlinear optical properties of the resulting polymer composites were obtained by measuring SHG and THG response by means of the Maker fringe technique using a laser generating at 1,064 nm with a 30 ps pulse duration. The values of the second and third order NLO susceptibilities of the four organometallic complexes were found to be higher than the common references used. Theoretical calculation shows that the large first and second order hyperpolarizablities are caused by strong intramolecular charge transfer between the transition metal parts and the ligands though a conjugated transmitter. These results indicate that the present organometallic complexes are valuable candidates for optoelectronic and photonic applications.

Nonlinear optical switching behavior of nitrogen-doped carbon dots

2019 ◽  
Vol 95 ◽  
pp. 109216 ◽  
Author(s):  
Xiao Wang ◽  
Liang Bai ◽  
Lei Shen ◽  
Bowen Yao ◽  
Hui Huang ◽  
...  
Keyword(s):  
Carbon Dots ◽  
Optical Switching ◽  
Nonlinear Optical ◽  
Switching Behavior ◽  
Nitrogen Doped ◽  
Doped Carbon Dots ◽  
Nitrogen Doped Carbon

scholarly journals Redox-switching of ternary Ni(ii) and Cu(ii) complexes: synthesis, experimental and theoretical studies along with second-order nonlinear optical properties

2019 ◽  
Vol 43 (26) ◽  
pp. 10468-10481 ◽  
Author(s):  
Néstor Novoa ◽  
Carolina Manzur ◽  
Thierry Roisnel ◽  
Vincent Dorcet ◽  
Nolwenn Cabon ◽  
...  
Keyword(s):  
Optical Properties ◽  
Thin Layer ◽  
Nonlinear Optical ◽  
Second Order ◽  
Nonlinear Optical Properties ◽  
Switching Behavior ◽  
Theoretical Studies ◽  
Time Resolved ◽  
Redox Switching ◽  
Experimental And Theoretical Studies

The redox-switching behavior of the title compounds has been probed for the Ni(ii) derivatives using time-resolved spectroelectrochemistry under thin-layer conditions.

Nonlinear optical switching behavior of Au nanocubes and nano-octahedra investigated by femtosecond Z-scan measurements

2009 ◽  
Vol 95 (2) ◽  
pp. 023105 ◽  
Author(s):  
Yih Hong Lee ◽  
Yongli Yan ◽  
Lakshminarayana Polavarapu ◽  
Qing-Hua Xu
Keyword(s):  
Optical Switching ◽  
Nonlinear Optical ◽  
Switching Behavior
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