Nonlinear optical limiting property and carrier dynamics in tin phthalocyanine porous organic frameworks

Author(s):  
Yuren Li ◽  
Lihe Yan ◽  
Jinhai Si ◽  
Zezhou Liang ◽  
Wenbo Huang ◽  
...  
2007 ◽  
Vol 16 (02) ◽  
pp. 247-254 ◽  
Author(s):  
ASLI KARAKAS ◽  
AYHAN ELMALI

To provide an insight into the optical limiting (OL) behavior of a series of 3 metallated 1,4,8,11,15,18,22,25-octaalkylphthalocyanines; the third-order nonlinear optical (NLO) properties, one-photon absorption (OPA) and two-photon absorption (TPA) characterizations have been theoretically investigated by means of AM1, ZINDO and configuration interaction (CI) methods. The highest values for the TPA cross-section (δ(ω)) are exhibited by derivatives metallated with indium and lead. It is also seen that the nickel-metallated compound might be a passive optical limiter of the series, indicating the weakest δ(ω) and second hyperpolarizability (γ). Our calculated results are in good agreement with the previous experimental observations on the examined molecules.


2007 ◽  
Author(s):  
Chunying He ◽  
Wubiao Duan ◽  
Yiqun Wu ◽  
Yuxiao Wang ◽  
Xueru Zhang ◽  
...  

2020 ◽  
pp. 131-138

The nonlinear optical properties of pepper oil are studied by diffraction ring patterns and Z-scan techniques with continuous wave beam from solid state laser at 473 nm wavelength. The nonlinear refractive index of the sample is calculated by both techniques. The sample show high nonlinear refractive index. Based on Fresnel-Kirchhoff diffraction integral, the far-field intensity distributions of ring patterns have been calculated. It is found that the experimental results are in good agreement with the theoretical results. Also the optical limiting property of pepper oil is reported. The results obtained in this study prove that the pepper oil has applications in nonlinear optical devices.


2021 ◽  
pp. 130559
Author(s):  
AA Ummu Habeeba ◽  
M. Saravanan ◽  
T.C. Sabari Girisun ◽  
S Anandan

1999 ◽  
Vol 571 ◽  
Author(s):  
Ulrich Hohenesteri ◽  
Fausto Rossi ◽  
Elisa Molinari

ABSTRACTWe present a density-matrix approach for the description of nonequilibrium carrier dynamics in optically excited semiconductor quantum dots, that explicitly accounts for exciton-exciton as well as exciton-carrier interactions. Within this framework, we analyze few-particle effects in the optical spectra and provide a consistent description of additional peaks appearing at high photoexcitation density. We discuss possible applications of such optical nonlinearities in future coherent-control experiments.


RSC Advances ◽  
2014 ◽  
Vol 4 (76) ◽  
pp. 40152-40160 ◽  
Author(s):  
Irene Papagiannouli ◽  
Athanasios B. Bourlinos ◽  
Aristides Bakandritsos ◽  
Stelios Couris

Nanodiamonds (NDs) and carbon-dots (CDs) suspensions exhibit significant NLO response under both ps and ns laser excitation. NDs exhibit important optical limiting action under nanosecond visible (532 nm) and infrared (1064 nm) laser excitation.


2003 ◽  
Vol 22 (4) ◽  
pp. 377-382 ◽  
Author(s):  
Zhan Hongbing ◽  
Wang Minquan ◽  
Chen Wenzhe ◽  
Li Guanghui

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