Optical limiting investigation of metalloporphyrins

Guo Ying Yang; Leng Leng Chng; Yiew Wang Lee; Wei Pin Lau; Kin Seng Lai

doi:10.1117/12.447935

14 February 2003 Optical limiting investigation of metalloporphyrins

Guo Ying Yang, Leng Leng Chng, Yiew Wang Lee, Wei Pin Lau, Kin Seng Lai

Proceedings Volume 4797, Multiphoton Absorption and Nonlinear Transmission Processes: Materials, Theory, and Applications; (2003) https://doi.org/10.1117/12.447935
Event: International Symposium on Optical Science and Technology, 2002, Seattle, WA, United States

Abstract

Meso-tetrakis{4-[2-(trimethylsilyl)ethynyl]phenyl}porphyrin [TPP(4-CCTMS)_H2] and its complexes with metals Zn(II), Ni(II), Ga(III), In(III) and Sn(IV) were synthesized and characterized. Their optical limiting properties were determined under the irradiation of a 532 nm/5 ns pulse laser at the repetition rate of 20 Hz. The optical limiting performance of the zinc derivative, Zn(II)-meso-tetrakis{4-[2-(trimethylsilyl)ethynyl]phenyl}porphyrin, [TPP(4-CCTMS)_Zn], is better than that of its analogues, Zn(II)-meso-tetraphenylporphyrin, [TPP_Zn], and Zn(II)-meso-tetratolyl-porphyrin, [TTP_Zn], indicating that optical limiting property can be improved via fine molecular modification on the para-position of the meso-phenyl rings. In this way, the Soret band of the porphyrin is not red-shifted thereby high photopic transmission of the samples can be maintained. The optical limiting performance can be further enhanced via insertion of closed-shell metal ions. Particularly, In(III)Cl-meso-tetrakis{4-[2-(trimethylsilyl)ethynyl]phenyl}porphyrin, [TPP(4-CCTMS)_InCl], exhibited optical limiting behavior better than C₆₀ and comparable to the state-of-the-art phthalocyanine dye, Chloro-(tetra-(tert-butyl)phthalocyanato)indium (III), [Pc(t-Bu)_InCl]. Furthermore, the samples with photopic transmissions as high as 75% were tested under the same laser setup and [TPP(4-CCTMS)_InCl] again demonstrated its efficient optical limiting, which is comparable to that of C₆₀ and much better than that of [Pc(t-Bu)_InCl].

Citation Download Citation

Guo Ying Yang, Leng Leng Chng, Yiew Wang Lee, Wei Pin Lau, and Kin Seng Lai "Optical limiting investigation of metalloporphyrins", Proc. SPIE 4797, Multiphoton Absorption and Nonlinear Transmission Processes: Materials, Theory, and Applications, (14 February 2003); https://doi.org/10.1117/12.447935

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