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A new dimension in chemical nanoimaging

22/02/2017

Researchers from the Basque institutions CIC nanoGUNE, Ikerbasque and Cidetec, and the German Robert Koch-Institut report the development of hyperspectral infrared nanoimaging. It is based on Fourier transform infrared nanospectroscopy (nano-FTIR) and enables highly sensitive spectroscopic imaging of chemical composition with nanoscale spatial resolution (Amenabar et al., Nat. Commun. 8, 14402 doi: 10.1038/ncomms14402 (2017)).

On-chip observation of THz graphene plasmons

THz plasmons of extremely short wavelength propagate along the graphene sheet of a THz detector, as visualized with photocurrent images obtained by scanning probe microscopy.
04/11/2016

Researchers developed a technique for imaging THz photocurrents with nanoscale resolution, and applied it to visualize strongly compressed THz waves (plasmons) in a graphene photodetector. The extremely short wavelengths and highly concentrated fields of these plasmons open new venues for the development of miniaturized optoelectronic THz devices (Nature Nanotechnology DOI: 10.1038/NNANO.2016.185)

Graphene does double duty for plasmons

01/10/2016

A study by ICFO, CIC nanoGUNE, Columbia University and the National Institute for Materials Science in Japan published in Nature Materials demonstrates how graphene can be employed simultaneously as both a plasmonic medium and detector.

The CENTINELA project, a winner in the Inspire programme

20/05/2016

This week Petronor has presented the first appraisal of the agreement with the Department of Economic Development and Competitiveness of the Government of the Basque Autonomous Community (region), and has announced the three award-winning projects in the Inspire open innovation programme. They include the CENTINELA project developed by the CIC nanoGUNE, Materials Physics Center and the University of Burgos.

nanoGUNE research appears on Nature Photonics cover

Nature Photonics
15/04/2016

Researchers from CIC nanoGUNE, in collaboration with ICFO and Graphenea, visualised for the first time how light is trapped by nanostructures made of graphene.

Nanolight at the edge

Near-field image of a rectangle graphene nanoresonator (Image: nanoGUNE)
21/03/2016

Researchers from CIC nanoGUNE, in collaboration with ICFO and Graphenea, have demonstrated how infrared light can be captured by nanostructures made of graphene. This happens when light couples to charge oscillations in the graphene. The resulting mixture of light and charge oscillations – called plasmon - can be squeezed into record-small volumes – millions times smaller than in conventional dielectric optical cavities. This process has been visualized by the researchers now, for the first time, with the help of a state-of the-art near-field microscope and explained by theory. Particularly, the researchers identified two types of plasmons - edge and sheet modes - propagating either along the sheet or along the sheet edges. The edge plasmons are unique for their ability to channel electromagnetic energy in one dimension. The work - funded by the EC Graphene Flagship and reported in Nature Photonics - opens new opportunities for ultra-small and efficient photodetectors, sensors and other photonic and optoelectronic nanodevices.

New tool for non-invasive quality control of graphene devices

06/03/2016

Researchers from the Nanooptics group at CIC nanoGUNE in collaboration with colleagues at ICFO - The Institute of Photonic Sciences (Catalunya) developed a new non-invasive room-temperature technique for graphene device characterization. This work has been funded by the EC Graphene Flagship and was recently reported in Nature Communications.

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.

nanoGUNE Scholarship: call for Master Thesis students

24/06/2015

NanoGUNE offers 4 scholarships to students of the Master in Nanoscience and the Master in New Materials of the UPV/EHU choosing Master thesis subjects within one of nanoGUNE's research groups.

Nanoscale Infrared Near-Field Spectroscopy, PHD thesis by Florian Huth

Florian Huth
26/05/2015

Florian Huth, Pre-doctoral Researcher at the Nanooptics Group at nanoGUNE, receives his PhD at the University of the Basque Country (UPV/EHU) after the defense of his thesis project on Monday 25 May 2015. Hir research work, entitled Nanoscale Infrared Near-Field Spectroscopy", has been developed under the supervision of the Nanooptics Group Leader and Ikerbasque Research Professor Dr. Rainer Hillenbrand.

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