LASER ASSISTED NANOMATERIALS SYNTHESIS GROUP

Responsible:
– PhD. Lucía Scaffardi
– PhD. Daniel Schinca

Participants:
- PhD. Valeria Arce
- Phys. María Alejandra Guerrero Banegas
- PhD. Joaquín Mendoza Herrera
- PhD. David Muñetón Arboleda
- BSC. Jesica Kobashigawa
- PhD. Jésica Santillán

Plasmonics is a branch of Nanophotonics that is based on the study of the interaction processes between electromagnetic radiation and conduction electrons at metal-dielectric interfaces. The behaviors observed as a consequence of said interaction can be interpreted based on the existence of plasmons - collective oscillations of the conduction electrons present in a Drude-type metal - which have characteristics related to the metal, its geometry and its dimensions, the length illumination wave and the surrounding medium.

Although its foundations were laid at the beginning of the 20th century with theoretical works by A. Sommerfeld and experimental observations by R. W. Wood, the advance in manufacturing techniques at scales of 100 nm, highly sensitive characterization methods, the substantial increase in The computing power of current computers and their wide potential for applications have motivated a general expansion in interest in this topic.

The characterization of these plasmons can be conveniently used for the determination of nanoparticle sizes (Nps) of noble metals smaller than 10 nm, both in simple spherical structures and in more complex coreshell-type structures (metal-metal oxide or metal-dielectric), such as also for the design of multilayer or isolated particle plasmonic sensors, of interest in both industrial (solar cells) and biological processes through the detection of isolated molecule.

 

Lines of research:

Projects in progress: