Ultrafast Excited-State Dynamics and Dispersion Studies of Third-Order Optical Nonlinearities in Novel Corroles

2012 ◽  
Vol 116 (33) ◽  
pp. 17828-17837 ◽  
Author(s):  
P. T. Anusha ◽  
Debasis Swain ◽  
S. Hamad ◽  
L. Giribabu ◽  
T. Shuvan Prashant ◽  
...  
2018 ◽  
Vol 85 ◽  
pp. 319-328 ◽  
Author(s):  
Ruipeng Niu ◽  
Qing Chang ◽  
Xingzhi Wu ◽  
Yanbing Han ◽  
Jidong Jia ◽  
...  

2010 ◽  
Vol 18 (26) ◽  
pp. 26843 ◽  
Author(s):  
Bing Gu ◽  
Kai Lou ◽  
Jing Chen ◽  
Yongnan Li ◽  
Hui-Tian Wang ◽  
...  

1993 ◽  
Author(s):  
D. C. Rodenberger ◽  
Weidong Chen ◽  
Rui-Fang Shi ◽  
Qihou L. Zhou ◽  
Anthony F. Garito

2018 ◽  
Vol 221 ◽  
pp. 279-281 ◽  
Author(s):  
Zhongguo Li ◽  
Chunying He ◽  
Jingze Fan ◽  
Yiqun Wu ◽  
Yushen Liu ◽  
...  

RSC Advances ◽  
2015 ◽  
Vol 5 (27) ◽  
pp. 20810-20817 ◽  
Author(s):  
Narra Vamsi Krishna ◽  
Varun Kumar Singh ◽  
Debasis Swain ◽  
Soma Venugopal Rao ◽  
Lingamallu Giribabu

Synthesis and characterisation of a Zn phthalocyanine substituted with bis(3,5-trifluoromethyl)phenyl groups at peripheral positions by absorption, fluorescence and electrochemical techniques. Excited state dynamics were investigated by fs degenerate pump–probe spectroscopy.


2014 ◽  
Vol 18 (04) ◽  
pp. 305-315 ◽  
Author(s):  
Debasis Swain ◽  
Varun K. Singh ◽  
Narra V. Krishna ◽  
L. Giribabu ◽  
S. Venugopal Rao

Zinc phthalocyanine with S-aryl groups at α-positions have been synthesized and its optical, emission, electrochemical and third-order nonlinear optical properties were investigated. Both the Soret and Q-bands were red-shifted and obeyed Beer–Lambert's law. Electrochemical properties indicated that both oxidation and reduction processes were ring centered. Emission spectra were recorded in different solvents and the fluorescence yields obtained were in the range of 0.02 while time-resolved fluorescence data revealed lifetimes of typically few ns. Excited state dynamics in this novel thio-zinc phthalocyanine molecule has been investigated using femtosecond (fs) degenerate pump-probe spectroscopy. Nonlinear optical properties of this molecule have been examined using the Z-scan technique with picosecond (ps) and fs pulses. Both open and closed aperture Z-scan curves were recorded with ~2 ps/~150 fs laser pulses at a wavelength of 800 nm and nonlinear optical coefficients were extracted from both the studies. Degenerate pump-probe data performed at 600 nm suggested a single long lifetime of ~300 ps, possibly originating from the non-radiative decay of S1 state.


1997 ◽  
Vol 144 (4-6) ◽  
pp. 245-251 ◽  
Author(s):  
G. Ravindra Kumar ◽  
M. Ravikanth ◽  
Sudeep Banerjee ◽  
Armen Sevian

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