Spectral dependence of nonlinear optical properties of symmetrical octatetraynes with p-substituted phenyl end-groups

2015 ◽  
Vol 17 (20) ◽  
pp. 13680-13688 ◽  
Author(s):  
Agata Arendt ◽  
Radosław Kołkowski ◽  
Marek Samoc ◽  
Sławomir Szafert

Organic compounds containing conjugated carbon chains have been extensively investigated due to their interesting properties including nonlinear optical response.

2020 ◽  
Vol 44 (45) ◽  
pp. 19623-19629
Author(s):  
Lijing Gong ◽  
Cheng Ma ◽  
Tiejun Liu ◽  
Jinkai Lv ◽  
Xianchao Xun

The nonlinear optical properties of the studied compounds were studied with the help of DFT calculations.


2008 ◽  
Vol 07 (04) ◽  
pp. 737-749 ◽  
Author(s):  
HUI HU ◽  
WEN-DAN CHENG ◽  
SHU-PING HUANG ◽  
ZHI XIE ◽  
HAO ZHANG

The linear absorption spectra and third-order nonlinear optical properties of M@ C 82 (M = Sc , Y , La ) nanostructural materials, whose configurations were optimized at the unrestricted open shell UB3LYP level, are simulated by the sum-over-states combined with the time-dependent UB3LYP methods. The obtained results show that the electronic absorption bands have redshifts, and the values of third-order nonlinear optical polarizabilities and two-photon absorption cross sections increase for M@ C 82 fullerenes (M = Sc , Y , La ) as the atomic radius of encased metal M increase in the order of Sc → Y → La . It is indicated that the electron-donating ability from the encased M atom to cage C 82 decreases or the electron-accepting ability from C 82 to M atom increases as the atomic radius of M increases, which results in third-order nonlinear optical response enhancement in the order of Sc @ C 82 < Y @ C 82 < La @ C 82. This gives a clue to design the nanostructural materials of encased fullerenes having a large nonlinear optical response.


Nanomaterials ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 2319
Author(s):  
Aristeidis Stathis ◽  
Michalis Stavrou ◽  
Ioannis Papadakis ◽  
Ievgen Obratzov ◽  
Stelios Couris

Fluorographene has been recently shown to be a suitable platform for synthesizing numerous graphene derivatives with desired properties. In that respect, N-octylamine-modified fluorographenes with variable degrees of functionalization are studied and their nonlinear optical properties are assessed using 4 ns pulses. A very strong enhancement of the nonlinear optical response and a very efficient optical limiting action are observed, being strongly dependent on the degree of functionalization of fluorographene. The observed enhanced response is attributed to the increasing number of defects because of the incorporation of N-heteroatoms in the graphitic network upon functionalization with N-octylamine. The present work paves the way for the controlled covalent functionalization of graphene enabling a scalable access to a wide portfolio of graphene derivatives with custom-tailored properties.


2014 ◽  
Vol 43 (25) ◽  
pp. 9655-9660 ◽  
Author(s):  
Li-Jie Wang ◽  
Rong-Lin Zhong ◽  
Shi-Ling Sun ◽  
Hong-Liang Xu ◽  
Xiu-Mei Pan ◽  
...  

The structures, stability and nonlinear optical properties of the encapsulated fullerenes M2N@C72 (M = Sc or Y, N = S or O) and the pristine cage Cs-C72 (10528) were investigated.


2015 ◽  
Vol 119 (37) ◽  
pp. 21658-21663 ◽  
Author(s):  
Stein van Bezouw ◽  
Jochen Campo ◽  
Seung-Heon Lee ◽  
O-Pil Kwon ◽  
Wim Wenseleers

Sign in / Sign up

Export Citation Format

Share Document