Two PhD Positions - Soft Matter Physics Group

Adolphe Merkle Institute

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  • Date de publication :

    18 juillet 2023
  • Taux d'activité :

    100%
  • Type de contrat :

    Durée indéterminée
  • Lieu de travail :

    Fribourg

Two PhD Positions - Soft Matter Physics Group

Two PhD Positions - Soft Matter Physics GroupThe Adolphe Merkle Institute's Soft Matter Physics Group (Prof. Ullrich Steiner) invites applications for two PhD positions in the "Strong Localisation of Light through the Controlled Assembly of Amorphous Patchy Colloid Networks” project.
In opaque materials, light is multiply scattered before emerging.  A long-standing interesting fundamental question arises: Is it possible to design a strongly scattering material from which light never emerges? While theoretically predicted and despite several experimental efforts, this effect has not yet been demonstrated.  Our approach follows the theoretical studies, which require an interplay of order and disorder in the arrangement of the scatterers within the material.  
To this end, we will develop a system of colloidal building blocks that can be assembled into networks, allowing us to adjust the order-disorder interplay of the resulting network. These 3D networks are then replicated into high-refractive index materials (silicon or titania) and optically characterised to achieve strong light scattering. One of the PhD projects concerns the creation of the building blocks, i.e., the synthesis of the colloids and their assembly, while the second will work on replicating the networks as mentioned above.  Both students will also use molecular dynamics and optical simulations to predict promising network morphologies, guiding their experiments.
Applicants must have a Master’s degree in Chemistry, Materials Science, or Physics and wish to pursue interdisciplinary research in a fast-moving international team. The ability to advance a complex project independently and as part of a team, excellent communication skills, and proficiency in English are key requirements for this position. Experience in polymer or colloid science will be of advantage, and some knowledge of optics is desirable. 
The Adolphe Merkle Institute offers attractive employment conditions and outstanding infrastructure in a new research facility.The position will be filled as soon as possible. Please send your CV, motivation letter, and contact information of at least two references as one PDF file via E‐mail to ami.applications@unifr.ch with the subject title “PhD Light Localisation”.

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