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- Lundén, H.Linköpings universitet,Tillämpad optik,Tekniska fakulteten,Electrooptical Systems, Swedish Defence Research Agency (FOI), Linköping, Sweden (author)
Efficient reverse saturable absorption of sol-gel hybrid plasmonic glasses
- Article/chapterEnglish2017
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- Amsterdam :Elsevier,2017
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- LIBRIS-ID:oai:DiVA.org:liu-138093
- https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-138093URI
- https://doi.org/10.1016/j.optmat.2017.04.024DOI
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- Language:English
- Summary in:English
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- Funding agencies: French CNRS; ENS Lyon; UCBL; Swedish Armed Forces
- Monolithic silica sol-gel glasses doped with platinum(II) acetylide complexes possessing respectively four or six phenylacetylene units (PE2-CH2OH and PE3-CH2OH) in combination with various concentrations of spherical and bipyramidal gold nanoparticles (AuNPs) known to enhance non-linear optical absorption, were prepared and polished to high optical quality. The non-linear absorption of the glasses was measured and compared to glasses doped solely with AuNPs, a platinum(II) acetylide with shorter delocalized structure, or combinations of both. At 532 nm excitation wavelength the chromophore inhibited the non-linear scattering previously found for glasses only doped with AuNPs. The measured non-linear absorption was attributed to reverse saturable absorption from the chromophore, as previously reported for PE2-CH2OH/AuNP glasses. At 600 nm strong nonlinear absorption was observed for the PE3-CH2OH/AuNPs glasses, also attributed to reverse saturable absorption. But contrary to previous findings for PE2-CH2OH/AuNPs, no distinct enhancement of the non-linear absorption for PE3-CH2OH/AuNPs was observed. A numerical population model for PE3-CH2OH was used to give a qualitative explanation of this difference. A stronger linear absorption in PE3-CH2OH would cause the highly absorbing triplet state to populate quicker during the leading edge of the laser pulse and this would in turn reduce the influence from two-photon absorption enhancement from AuNPs.
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- Lopes, CesarLinköpings universitet,Kemi,Tekniska fakulteten(Swepub:liu)ceslo40 (author)
- Lindgren, MikaelLinköpings universitet,Kemi,Tekniska fakulteten,Department of Physics, Norwegian University of Science and Technology, Trondheim, Norway(Swepub:liu)mikli67 (author)
- Liotta, A.Laboratoire de Chimie, ENS de Lyon, Lyon, France (author)
- Chateau,, D.Laboratoire de Chimie, ENS de Lyon, Lyon, France (author)
- Lerouge,, F.Laboratoire de Chimie, ENS de Lyon, Lyon, France (author)
- Chaput,, F.Laboratoire de Chimie, ENS de Lyon, Lyon, France (author)
- Désert,, A.Laboratoire de Chimie, ENS de Lyon, Lyon, France (author)
- Parola,, S.Laboratoire de Chimie, ENS de Lyon, Lyon, France (author)
- Linköpings universitetTillämpad optik (creator_code:org_t)
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- In:Optical materials (Amsterdam)Amsterdam : Elsevier69, s. 134-1400925-34671873-1252
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