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nanoGUNE reaches new depths in infrared nanospectroscopy

20/07/2020

Researchers from the Nanooptics Group at CIC nanoGUNE demonstrate that nanoscale infrared imaging – which is established as a surface-sensitive technique – can be employed for chemical nanoidentification of materials that are located up to 100 nm below the surface. The results further show that the infrared signatures of thin surface layers differ from that of subsurface layers of the same material, which can be exploited to distinguish the two cases. The findings, recently published in Nature Communications, push the technique one important step further to quantitative chemometrics at the nanoscale in three dimensions.

Researchers discover directional and long-lived nanolight in a 2D material

Nanolight
25/10/2018

An international team led by researchers from Monash University (Melbourne, Australia), University of Oviedo (Asturias, Spain), CIC nanoGUNE (San Sebastián, Spain), and Soochow University (Suzhou, China) discover squeezed light ('nanolight') in the nanoscale that propagates only in specific directions along thin slabs of molybdenum trioxide – a natural anisotropic 2D material –. Besides its unique directional character, this nanolight lives for an exceptionally long time, and thus could find applications in signal processing, sensing or heat management at the nanoscale.

Basque researchers turn light upside down

23/02/2018

Researchers from CIC nanoGUNE (San Sebastian, Spain), in collaboration with the Donostia International Physics Center (DIPC, San Sebastian, Spain) and Kansas State University (USA), report in Science the development of a so called 'hyperbolic metasurface' on which light propagates with completely reshaped wafefronts. This scientific achievement towards a more precise control and monitoring of light is highly interesting for the long run technological challenge of miniaturizing optical devices for sensing and signal processing.

Quantum nanoscope

09/06/2017

A collaborative work published in Science shows how electrons surf the waves of light on graphene.

Tracking slow nanolight in natural hyperbolic metamaterial slabs

Measured dispersion (energy versus momentum diagram) of hyperbolic phonon polaritons in boron nitride.
15/09/2015

Researchers from the Nanooptics and the Nanodevices groups at CIC nanoGUNE (Basque Country) in collaboration with colleagues at ICFO - The Institute of Photonic Sciences (Catalunya) have imaged how light moves inside an exotic class of matter known as hyperbolic materials. They observed, for the first time, ultraslow pulse propagation and backward propagating waves in deep subwavelength-scale thick slabs of boron nitride – a natural hyperbolic material for infrared light. This work has been funded by the EC Graphene Flagship and was recently reported in Nature Photonics and highlighted as a News&Views.

Rainer Hillenbrand receives ERC starting grant

07/07/2010

The European Research Council (ERC) has awarded a Starting Grant to the TERATOMO proposal presented by Rainer Hillenbrand. The grant has a budget of nearly 1.5 M€ for a 5 year work program. TERATOMO is the acronym for Near-field Spectroscopic Nanotomography at Infrared and Terahertz frequencies. The core objective of the project is the development of a novel microscopy technique for three-dimensional imaging of nanostructures with infrared and terahertz light.

The Ludwig-Genzel-Prize 2014 is awarded to Rainer Hillenbrand

16/07/2014

The Ludwig-Genzel-Prize 2014 has been awarded to the Ikerbasque Research Professor at nanoGUNE and the UPV/EHU Rainer Hillenbrand for “the design and development of infrared near-field spectroscopy and the application of this novel spectroscopic method in different areas of natural sciences”.