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Accueil > Evénements > Séminaires > Archives 2015 > Biocompatible random (...)
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Biocompatible random lasing - Riccardo Sapienza - Jeudi 16 juillet 2015 à 16 h 30

INSP - 4 place Jussieu - 75252 PARIS Cedex 05 - Barre 22-23 - 3e étage, salle 317

Riccardo Sapienza - Lecturer in Physics - Experimental Biophysics & Nanotechnology group Physics department - King’s College London

Abstract

Biolasers are laser sources made out of biopolymers and powered by nanophotonic interactions. We will report on biocompatible self-assembled random lasers, made entirely of doped silk, showing clear threshold behaviour and spectral narrowing. We will show that with a simple self-assembly process the porous silk matrix can be incorporated with different dyes and casted in a free-standing inverse photonic glass with designed collective scattering Mie resonances. The combination of a natural biopolymer and random lasing – a lasing system that uses highly disordered materials to obtain laser action without the need for carefully aligned mirrors – offers the opportunity for integration of a laser within living tissue, opening a new path at the interface between nanophotonic and medicine.