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NanoGUNEko ikertzaileek zuzendu dute Nature Photonics aldizkariko azalean argitaratutako grafenoari buruzko ikerketa

Nature Photonics
15/04/2016

CIC nanoGUNEko ikertzaileek, ICFOrekin eta Graphenea enpresarekin elkarlanean, argi infragorria ikusi dute lehen aldiz grafenozko nanoegituretan. Fotodetektagailuak, sentsoreak eta bestelako nanogailu optoelektroniko eta fotoniko efiziente eta izugarri txikiak egiteko bide berriak ireki ditu lanak. Nature Photonics aldizkariaren apirileko zenbakiaren azalean eman dute lan horren berri.

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.

Argia moteltzen nanoeskalan

Eremu hurbileko mikroskopio batek jasotako polaritoiaren irudia.
15/09/2015

Hutsean, abiadura berean mugitzen da beti argia, segundoko 300 milioi metro baino gutxixeagoan. Ingurunez aldatuz gero, ordea, abiadura ere aldatu egin daiteke. "Hiperbolikoak" deritzen material oso berezi batzuetan argia nola hedatzen den ikertu dute CIC nanoGUNEn (zehazki, boro nitruroko geruza oso fin batzuetan), eta aurkikuntza hau egin dute: motelago higitzen da argia, eta "korrontearen kontra". Nature Photonics aldizkarian argitaratu dute lana Nanooptika eta Nanogailuen taldeetako ikertzaileek (Europako Batasuneko Graphene Fragship proiektuak diruz lagundu du), Bartzelonako ICFOko zenbait kiderekin batera.

NanoGUNE bekak: master ikasleentzako deialdia zabaldu da

MOKE set up
24/06/2015

UPV/EHUko Nanozientzia eta Material Berrien Masterren titulazioetako ikasleei zuzendutako 4 beka eskaintzen ditu nanoGUNEk, ikerketa zentroko taldeen baitan master tesia egin nahi duten ikasleei zuzenduta.

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.

Grafeno-plasmoiak, argi-izpi bat belaunaldi berriko gailuetarako

23/05/2014
  • Antenetan oinarritutako plataforma teknologiko bat garatu dute CIC nanoGUNEko ikertzaileek, grafenoan zehar hedatzen den argia abiarazi eta kontrolatzeko aukera ematen duena. Aurkikuntza horrek bidea emango du gailu eta zirkuitu fotoniko oso miniaturizatuak egiteko.
  • Frogatu dute grafenoan (zeina karbono-atomoen geruza bakarrarekin osatutako materiala baita) harrapatutako argia fokuratu eta kurbatu daitekeela.
  • Lanaren berri Science zientzia-aldizkari entzutetsuan eman zuten atzo.

Infragorri bidez proteina bakarreko konplexuak argitu dituzte

17/12/2013
  • Nano-FTIR teknikak bioespektroskopia infragorriaren difrakzio-muga gainditu du
  • Teknika berritzailearen bidez proteina bakarreko konplexuen egitura sekundarioa azter daiteke

Pablo Alonso-González, Winner of the RSEF-BBVA Foundation 2014 prize

17/02/2015

The nanoGUNE researcher Pablo Alonso-González has been awarded the RSEF-BBVA Foundation 2014 prize for Physics in the New Researchers in Experimental Physics category. Alonso-González works in this center’s Nanooptics group in Donostia-San Sebastian and his research is currently focussing on the optical properties of graphene at the nanoscale. The researcher was the first to obtain guided light imaging in this material with nanometric precision, and his work was published by the journal Nature.

2014 Ludwig-Genzel saria Rainer Hillenbrandi

16/07/2014

* 2008az geroztik, nanozientzia ikertzeko euskal zentroa den CIC nanoGUNEko Nanooptika taldeko buru da Hillenbrand

* "Eremu hurbileko espektroskopia infragorriko diseinuagatik eta garapenagatik" eman ,diote saria, eta "metodo espetroskopiko berri horrek natura-zientzietako zenbait alorretan ,duen aplikazioagatik"

* Bi urtez behin ematen da Ludwig-Genzel saria. Materia kondentsatuaren espektroskopiaren alorrari

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