Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/97456
Title: Optical-limiting properties of neutral nickel dithiolenes
Authors: Tan, W.L.
Ji, W. 
Zuo, J.L.
Bai, J.F.
You, X.Z.
Lim, J.H.
Yang, S.
Hagan, D.J.
Van Stryland, E.W.
Issue Date: Jun-2000
Citation: Tan, W.L.,Ji, W.,Zuo, J.L.,Bai, J.F.,You, X.Z.,Lim, J.H.,Yang, S.,Hagan, D.J.,Van Stryland, E.W. (2000-06). Optical-limiting properties of neutral nickel dithiolenes. Applied Physics B: Lasers and Optics 70 (2-6) : 809-812. ScholarBank@NUS Repository.
Abstract: We report the observation of optical-limiting effects in benzene solutions of two neutral nickel complexes with multi-sulfur 1,2 dithiolene ligands, [Ni(medt)2] 1 (medt = 5,6-dihydro-6-methyl-1,4-dithiin-2,3-dithiolate) and [Ni(phdt)2] 2 (phdt = 5,6-dihydro-5-phenyl-1,4-dithiin-2,3-dithiolate). The limiting effects were observed with nanosecond and picosecond laser pulses. The limiting thresholds of complexes 1 and 2 were ≈ 0.3 J/cm2, measured with the ps laser pulses at 532 nm. The linear absorption spectra of the two complexes indicated that their limiting response should cover the visible and near-infrared region (up to 900 nm). Both ps time-resolved pump-probe and Z-scan experiments revealed that the limiting effects should originate from excited-state absorption and refraction.
Source Title: Applied Physics B: Lasers and Optics
URI: http://scholarbank.nus.edu.sg/handle/10635/97456
ISSN: 09462171
Appears in Collections:Staff Publications

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