Light refraction accounts for the change of direction and speed that a wave undergoes when passing from one medium to another. Glasses and contact lenses, microscopes and telescopes, or something as commonplace as the fact that a pencil inserted into a glass of water appears bent when viewed from the outside, have their origin in the optical phenomenon of refraction.
Terahertz radiation has become an important diagnostic tool in the development of new technologies. However, the diffraction limit prevents terahertz radiation (λ ≈ 0.01–3 mm) from being focused to the nanometer length scale of modern devices. In response to this challenge, terahertz scanning probe microscopy techniques based on coupling terahertz radiation to subwavelength probes such as sharp tips have been developed.
Focusing of light into the nanoscale represents a landmark for the implementation of nanotechnology in optics and biochemistry. Based on the exotic propagation of light in highly anisotropic materials (where light propagates in the form of rays along specific directions), a research team led by the University of Oviedo has demonstrated the focusing of infrared light into extraordinarily small regions.
The collaboration agreement for the project, which is expanding year on year, was signed this morning. The 17 organizations signing up to the agreement on the 6th edition of Emakumeak Zientzian are a significant representative sample of the Basque Country’s science and technology network. This coming together is the result of an open-door initiative always aspiring to unite and convinced that we are better off by adding.