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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/855

Title: Non-linear optical properties of the mixed-metal mixed-chalcogen clusters [Fe2(CO)6{μ-SeC(Ph)=C(Se)}{(OEt)C=Cr(CO)5}] and [Fe2(CO)6Se2{μ-(CO)3Cr(η5-C5H(CH2Ph)(Ph)(OEt)}]
Authors: PHILIP, REJI
RAVINDRA KUMAR, G
MATHUR, PRADEEP
GHOSH, SANJUKTA
Keywords: nonlinear optics
optical limiters
polarisability
absorption coefficients
Issue Date: 1999
Publisher: Elsevier
Citation: Chemical Physics Letters 313(5-6), 719-724
Abstract: We report studies of the third-order optical non-linearity of the newly synthesized butterfly-shaped mixed-metal mixed-chalcogen clusters [Fe2(CO)6{μ-SeC(Ph)=C(Se)}{(OEt)C=Cr(CO)5}] and [Fe2(CO)6Se2{μ-(CO)3Cr(η5-C5H(CH2Ph)(Ph)(OEt)}] using 532 nm, 6 ns laser pulses. Their effective non-linear absorption coefficient and non-linear index intensity coefficient are measured by the z-scan technique from which the corresponding cubic hyperpolarizabilities are evaluated. The obtained values indicate a high non-linearity comparable to some of the best values reported previously for cluster compounds. Both compounds show strong optical limiting, and the second compound exhibits non-linear scattering. Their photostability is superior to many of the previously reported highly non-linear clusters.
URI: http://dx.doi.org/10.1016/S0009-2614(99)01064-7
http://hdl.handle.net/10054/855
http://dspace.library.iitb.ac.in/xmlui/handle/10054/855
ISSN: 0009-2614
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