Rodolphe Antoine – författare
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2 produkter
2 produkter
3 425 kr
Skickas inom 5-8 vardagar
Laser technologies offer multiple benefits in the synthesis and characterisation of nanomaterials. In synthesis the higher selectivity and shorter processing times of laser-based techniques can help you to save time and minimise waste, compared to conventional fabrication processes. Characterisation with lasers allows you to study nonlinear optical effects which provide better molecular selectivity and reduced background signals.Beginning with chapters introducing the principles of lasers and non-linear optics, this book will guide you through using laser-based techniques for the synthesis and characterisation of nanomaterials. Laser sintering and melting are included, as well as approaches to 3D printing by using multiphoton lithography. Various characterisation techniques are described, including multiscale and ultrafast dynamics, and LIBS. Both experienced practitioners and those aspiring to use lasers in their work will find this book a useful and inspiring guide.
Liganded silver and gold quantum clusters. Towards a new class of nonlinear optical nanomaterials
Häftad, Engelska, 2017
539 kr
Skickas inom 10-15 vardagar
Metallic quantum clusters belonging to intermediate size regime between two and few hundred of atoms, represent unique building blocks of new materials. Nonlinear optical (NLO) characteristics of liganded silver and gold quantum clusters reveal remarkable features which can be tuned by size, structure and composition. The two-photon absorption cross sections of liganded noble metal quantum clusters are several orders of magnitude larger than that of commercially-available dyes. Therefore, the fundamental photophysical understanding of those two-photon processes in liganded clusters with few metal atoms deserve special attention, in particularly in context of finding the mechanisms responsible for these properties. A broad range of state-of-the-art experimental methods to determine nonlinear optical properties (i.e. two-photon absorption, two-photon excited fluorescence and second harmonic generation) of quantum clusters are presented. The experimental setup and underlying physical concepts are described. Furthermore, the theoretical models and corresponding approaches are used allowing to explain the experimental observations and simultaneously offering the possibility to deduce the key factors necessary to design new classes of nanoclusters with large NLO properties. Additionally, selected studied cases of liganded silver and gold quantum clusters with focus on their NLO properties will be presented as promising candidates for applications in imaging techniques such as fluorescence microscopy or Second-Harmonic Generation microscopy.