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Hybrid Materials for Optical Limiting
- 2005
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Editorial proceedings (other academic/artistic)abstract
- Optical limiting materials based on alkynyl platinum derivatives and thiacalixarenes were produced using the sol-gel process. The molecular species were grafted to the matrix (class II hybrid) in order to maximise the concentration and the stability of the material. Broadband optical limiting performances in the visible wavelength region was observed in the prepared materials. Thermomechanical characterisation of the matrix will also be discussed.
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- Parola, Stephane, et al.
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Hybrid materials for optical limiting applications
- 2006
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In: Optical Materials in Defence Systems Technology III. - Stockholm, Sweden : SPIE-INT SOC OPTICAL ENGINEERING. - 9780819464996 ; , s. U71-U78
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Conference paper (peer-reviewed)abstract
- Optical limiting materials are developed for applications in protection of optical sensors against laser aggressions. We have studied functionalised macrocycles (thiacalixarenes) and alkynylplatinum(H) derivatives for optical limiting applications. Glass materials based on alkynylplatinum(H) derivatives and macrocycles were prepared through the sol-gel process. The molecular species were grafted to the matrix in order to maximise the concentration and the stability of the final solid-state material. The glass materials were cut and polished to approximately 1.5 mm. The glass materials show broadband optical limiting in the visible wavelength region, for nanosecond laser pulses.
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- Zieba, Roman, et al.
(author)
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Preparation of functional hybrid glass material from Platinum (II) Complexes for broadband nonlinear absorption of light
- 2009
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In: Advanced Funcitional Materials. - : John Wiley & Sons. - 1616-301X .- 1616-3028. ; 19:2, s. 235-241
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Journal article (peer-reviewed)abstract
- The synthesis of trans-di(arylalkynyl)diphosphine platinum(II) complexes bearing trialkoxysilane groups is described, as well as the preparation of siloxane-based hybrid materials from organometallic chromophores through a modified sol-gel process. Glass materials prepared from trans-[P(n-Bu)3]2Pt[(CC-p-C6H4-CC-p-C6H4-CH2O(CO)NH(CH2)3Si(OC2H5)3]2 generally show spectral transmittance, absorption and luminescence similar to that of solutions reported in the literature. Measurements of optical power limiting for the hybrid glass are carried out, and show broadband nonlinear absorption throughout the whole visible wavelength range with clamping values in the range 0.2-7 µJ at 120 mM chromophore concentration. The sol-gel process using urethane-propyltriethoxysilane-functionalized chromophores as precursors appears to be a valid method for formation of robust silicate materials with grafted diarylethynyl Pt(II) complexes for OPL devices.
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