Studies of third-order optical nonlinearities and optical limiting properties of azo dyes

2008 ◽  
Vol 69 (3) ◽  
pp. 980-984 ◽  
Author(s):  
C. Gayathri ◽  
A. Ramalingam
Keyword(s):  
Azo Dyes ◽  
Optical Limiting ◽  
Optical Nonlinearities ◽  
Third Order

THIRD-ORDER NONLINEAR OPTICAL PROPERTIES OF [(C2H5)4N][Co(dmit)2] USING Z-SCAN TECHNIQUE

2008 ◽  
Vol 22 (03) ◽  
pp. 191-198 ◽  
Author(s):  
XI ZHANG ◽  
QUAN REN ◽  
WEN-FENG GUO ◽  
XIANG-BING SUN ◽  
XIN-QIANG WANG ◽  
...  
Keyword(s):  
Optical Properties ◽  
Absorption Coefficient ◽  
Nonlinear Absorption ◽  
Nonlinear Optical ◽  
Nonlinear Refraction ◽  
Optical Limiting ◽  
Optical Nonlinearities ◽  
Refraction Coefficient ◽  
Third Order ◽  
Potential Applications

A novel dmit 2- complex: [( C 2 H 5)4 N][Co(dmit) 2], abbreviated as EtCo , was synthesized and its third-order optical nonlinearities were characterized by Z-scan technique at the wavelength of 1064 nm with laser duration of 40 ps. Z-scan curves revealed a negative nonlinear refraction at 1064 nm and a positive absorption was observed. The nonlinear refraction coefficient n2, the nonlinear absorption coefficient β and the molecular second hyperpolarizability γ have been determined to be as large as 9.51×10-19 m 2/ W , 2.19×10-12 m/W and 5.41×10-31 esu respectively, suggesting that this material has potential applications in optical limiting.

Third‐order optical nonlinearities of a processable main chain polymer with symmetrically substituted tris‐azo dyes

1992 ◽  
Vol 61 (16) ◽  
pp. 1901-1903 ◽  
Author(s):  
Takashi Kurihara ◽  
Satoru Tomaru ◽  
Yuhei Mori ◽  
Makoto Hikita ◽  
Toshikuni Kaino
Keyword(s):  
Azo Dyes ◽  
Main Chain ◽  
Optical Nonlinearities ◽  
Third Order ◽  
Chain Polymer
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