Polymethine dyes for all-optical switching applications: a quantum-chemical characterization of counter-ion and aggregation effects on the third-order nonlinear optical response

2012 ◽  
Vol 3 (10) ◽  
pp. 3103 ◽  
Author(s):  
Sukrit Mukhopadhyay ◽  
Chad Risko ◽  
Seth R. Marder ◽  
Jean-Luc Brédas
Keyword(s):  
Quantum Chemical ◽  
Optical Switching ◽  
Nonlinear Optical ◽  
Chemical Characterization ◽  
Polymethine Dyes ◽  
Third Order ◽  
The Third ◽  
All Optical ◽  
All Optical Switching

THIRD-ORDER NONLINEAR OPTICAL INVESTIGATION OF A NOVEL MATERIAL IN THE NEAR-IR REGIONS

2010 ◽  
Vol 19 (03) ◽  
pp. 407-413
Author(s):  
YAN-LING WANG ◽  
GUAN-CHENG JIANG ◽  
YE-FEI WANG ◽  
JING-JING ZHENG ◽  
MA LI
Keyword(s):  
Pulse Width ◽  
Optical Switching ◽  
Acetonitrile Solution ◽  
Optical Investigation ◽  
Third Order ◽  
The Third ◽  
Near Ir ◽  
All Optical ◽  
Novel Material ◽  
All Optical Switching

The third-order nonlinearity of a novel ET[bis(ethylenedithio)-tetrathiafulvalene] complex (ET ⋅ BF3) has been measured by using the Z-scan technique with a laser pulse width of 30 ps at 1064 nm. The third-order nonlinear refractive index (n2), nonlinear absorption coefficient (β) and nonlinear susceptibilities (χ(3)) of a sample acetonitrile solution are 3.5 × 10-11 esu, 1.65 cm/GW and 5.4 × 10-12 esu, respectively. The nonresonant second-order hyperpolarizability (γ) for the molecule has been estimated to be 2.77 × 10-30 esu. The two merit factors for all-optical switching are W ≫ 1 and T = 1.49, respectively.

THIRD-ORDER NONLINEAR OPTICAL INVESTIGATION OF A NOVEL MATERIAL: (HEXADECYLTRIMETHYLAMMONIUM) BIS(4,5-DITHIOLE-1,3-DITHIOLE-2-THIONE)COPPER

2006 ◽  
Vol 15 (02) ◽  
pp. 179-184 ◽  
Author(s):  
L. FENG ◽  
Y. L. WANG ◽  
Q. REN ◽  
G. H. ZHANG ◽  
H. L. YANG ◽  
...  
Keyword(s):  
Optical Switching ◽  
Nonlinear Optical ◽  
Nonlinear Refraction ◽  
Optical Nonlinearity ◽  
Optical Investigation ◽  
Third Order ◽  
All Optical ◽  
Novel Material ◽  
Kerr Coefficient ◽  
All Optical Switching

A novel dmit2- salt: (hexadecyltrimethylammonium)bis(4,5-dithiolato-1,3-dithiole-2-thione)copper, abbreviated as HTCu , is synthesized and characterized for third-order optical nonlinearity by Z-scan technique at a wavelength of 1064 nm with laser duration of 30 ps. Z-scan spectra reveal a negative Kerr coefficient at 1064 nm and no nonlinear absorption was observed under this condition. The nonlinear refraction coefficient n2 and the second hyperpolarizability γ have been determined to be -1.51 × 10-11 and 1.36 × 10-30 esu , respectively, suggesting HTCu is a promising material for all-optical switching.

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