INMA Impulso: Pablo Alonso
INMA Impulse Seminar: Nanooptics in 2D materials
On Wednesday 10 May will take place a new session of the INMA-Impulse conference series, a series of conferences that seeks to bring the most cutting-edge research to society.
The next session entitled: “Nanooptics in 2D materials” will be given by Pablo Alonso-González of the University of Oviedo and Center of Research on Nanomaterials and Nanotechnology (CINN).
Summary: Van der Waals (vdW) materials have recently attracted considerable attention due to their ability to support nanolight (polaritons) with unique properties, such as hyperbolic dispersion, negative phase velocity, or extreme confinement. In particular, the biaxial vdW semiconductor α-phase molybdenum trioxide (α-MoO3) has received much attention due to its ability to support in-plane hyperbolic phonon polaritons (PhPs) —infrared (IR) light coupled to lattice vibrations in polar materials— with ultra-low losses, offering an unprecedented platform for controlling the flow of energy at the nanoscale.In this seminar, I will show experimental demonstrations of the unique behavior of PhPs in these crystals, including the visualization of anomalous cases of the fundamental optical phenomena of refraction and reflection, and the exotic phenomenon of canalization, in which PhPs propagate along a single direction with ultralow losses when two biaxial slabs are rotated at a critical angle (Twistoptics).
The INMA-Impulse seminars are organised by the Institute of Nanoscience and Materials of Aragon, INMA, a joint institute of the CSIC and the University of Zaragoza.
The conference will take place on Wednesday 10 May at 12 noon in the Sala de Grados of the Faculty of Sciences of the University of Zaragoza.
