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Nonlinear optical Properties of Pentaazadentate Expanded Porphyrins and Application in Optical Limiting

Published online by Cambridge University Press:  03 September 2012

Duoyuan Wang ,
Wenfang Sun ,
Shiming Dong ,
Jinhai Si  and
Chunfei Li
Duoyuan Wang
Affiliation:
Institute of Photographic Chemistry, Academia Sinica, Beijing, 100101 China
Wenfang Sun
Affiliation:
Institute of Photographic Chemistry, Academia Sinica, Beijing, 100101 China
Shiming Dong
Affiliation:
Institute of Photographic Chemistry, Academia Sinica, Beijing, 100101 China
Jinhai Si
Affiliation:
Department of Physics, Harbin Institute of Technology, Harbin 150006, China
Chunfei Li
Affiliation:
Department of Physics, Harbin Institute of Technology, Harbin 150006, China
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Abstract

Nonlinear optical properties of asymmetric pentaazadentate expanded porphyrin metal complexes are investigated. The transmittance dependence of the target compounds on the incident laser intensity generates different nonlinear optical effects in the excited states. The reverse saturable absorption at 532 nm in the ns pulses and the saturable absorption for the pspulses at high fluences are observed in solutions. The nonlinear refractive indices n2 aremeasured by the Z-scan technique. The optical limiting based on the RSA and transverse refraction are demonstrated for ns and continuous laser. An optical limiter based on the RSA and self-refraction is performed, in which the limitating threshold and amplitude of output energy are reduced.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 479: Symposium S – Materials for Optical Limiting II , 1997 , 41
Copyright
Copyright © Materials Research Society 1997

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