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Nonlinear optical properties of mixed Mo/Fe, mixed chalcogen clusters Cp2Mo2Fe2STe(CO)7 and Cp2Mo2Fe2(μ3-S)(μ3-Te)(μ2-SPh)(μ3-H)(CO)5

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Title Nonlinear optical properties of mixed Mo/Fe, mixed chalcogen clusters Cp2Mo2Fe2STe(CO)7 and Cp2Mo2Fe2(μ3-S)(μ3-Te)(μ2-SPh)(μ3-H)(CO)5
 
Creator PHILIP, REJI
RAVINDRA KUMAR, G
MATHUR, PRADEEP
GHOSE, S
 
Subject iron compounds
light absorption
nonlinear optics
laser pulses
 
Description Studies of the third order optical nonlinearity of the mixed-metal, mixed chalcogen clusters Cp2Mo2Fe2STe(CO)7 and Cp2Mo2Fe2(μ3-S)(μ3-Te)(μ2-SPh)(μ3-H)(CO)5 using 532 nm, 6 ns laser pulses are reported. The second compound is the first example in literature of a mixed Fe/Mo mixed chalcogen complex containing a bridging thiolate group. The effective nonlinear absorption coefficient and nonlinear index intensity coefficient of these compounds are measured by the Z-scan technique, from which the corresponding cubic hyperpolarizabilities are evaluated. The obtained values indicate a high nonlinearity comparable to some of the best values reported previously for cluster compounds. Both compounds show strong optical limiting. In addition, their photostability is found to be much superior to many of the previously reported highly nonlinear clusters.
 
Publisher Elsevier
 
Date 2009-03-09T07:41:04Z
2011-11-25T18:44:11Z
2011-12-26T13:06:50Z
2011-12-27T05:54:49Z
2009-03-09T07:41:04Z
2011-11-25T18:44:11Z
2011-12-26T13:06:50Z
2011-12-27T05:54:49Z
2000
 
Type Article
 
Identifier Optics Communications 178(4-6), 469-475
http://hdl.handle.net/10054/891
http://dspace.library.iitb.ac.in/xmlui/handle/10054/891
 
Language en