DIPC Community Seminars: Hyperbolic light
DIPC Seminars
- Speaker
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Alexey Nikitin, Donostia International Physics Center
- When
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2022/10/06
14:00 - Place
- Hybrid Seminar: Donostia International Physics Center
- Add to calendar
-
iCal
**DIPC Community Seminars**
Propagation of light through media has always been an area of a high interest
in physics. Moreover, related optical phenomena, such as diffraction,
scattering and emission of light play the central role in technologies for
information processing, security and medicine, to name a few, and thus
research in optics is highly relevant for the society. However, although the
most of the optical phenomena in conventional media are well studied, light
behavior can dramatically change in strongly anisotropic materials, producing
surprising and basically unexplored effects. Particularly, in some van der
Waals crystals the dispersion of light – the relation between the momentum
and energy – can take a hyperbolic shape. As a result, hyperbolic light can
only travel along some specific directions in space, where it demonstrates
highly non-intuitive “negative†reflection and refraction, negative phase
and group velocities, canalization (propagation of light along very narrow
sectors in space) and deeply subwavelength focusing. In this talk we will
outline the progress in the field of hyperbolic optics and explain the basic
properties of the hyperbolic light. We will show recent experimental studies
on the hyperbolic light, their interpretation and applications and discuss
future perspectives.
ZOOM: