Set in the Catalan Institute of Nano-technology (ICN) in Barcelona and led by Prof. Clivia Sotomayor Torres, the Phononic and Photonic Nanostructures group (P2N) investigates phonon/pho-ton/electron interactions in nano-scale condensed matter underpinned by research in nanofabrication, especially nanoimprint lithography. The long-term aim is to develop new information technology concepts where information processing is achieved with multiple state variables.

Research is carried out on nano-scale thermal and acoustic effects in both confined systems and phononic crystals; on methods to control the exciton-plasmon coupling targeting enhanced light extraction in light sources; and on the optimisation of the optical gain of printed polymer-based photonic structures.

In order to facilitate the uptake of nano-technology innovations by industry, the group is advancing nanoimprint lithography towards the realisation of 3D nano- and hybrid structures. For the latter, efforts are focused on acoustic-field assisted self-assembly of nano- and mesoscopic particles, to realise heterostructures and to deposit them selectively on patterned and or surface-functionalised substrates.

Latest Publications


A one-dimensional optomechanical crystal with a complete phononic band gap

J. Gomis-Bresco, D. Navarro-Urrios, M. Oudich, S. El-Jallal, A. Griol, D. Puerto, E. Chavez, Y. Pennec, B. Djafari-Rouhani, F. Alzina, A. Martínez and C. M. Sotomayor Torres. Nat. Comm., 5, 4452 (2014) open reference link »

Acoustic phonon propagation in ultra-thin Si membranes under biaxial stress fiel...

B. Graczykowski, J. Gomis-Bresco, F. Alzina, J. S. Reparaz, A. Shchepetov, M. Prunnila, J. Ahopelto and C. M. Sotomayor Torres. New J. Phys., 16, 073024 (2014) open reference link »

A Physics-based Scoring Function for Protein Structural Decoys: Dynamic Testing...


Y. B. Ruiz-Blanco, Y. Marrero-Ponce, Y. García, A. Purisd, R. Bellod, J. Greene and C. Sotomayor-Torres. Chem. Phys. Lett., DOI: 10.1016/j.cplett.2014.07.014 (2014) open reference link »


Plasmonic interaction, Indium and Silicon inclusion in Nitrides investigated by ...


E. Poliani, M. R. Wagner, J. S. Reparaz, M. Mandl, M. Strassburg, X. Kong, A. Trampert, C. Nenstiel, S. Fritze, A. Dadgar, A. Krost, A. Hoffmann, and J. Maultzsch. E-MRS spring 2014, 26-30 May 2014, Lille (France) - Talk open reference link »

Latest News


P2N results in optomechanics published in Nature Communications

July 21, 2014 in Uncategorized

Electromagnetic radiation and mechanical vibrations of matter interact and exchange energy at the nanometric scale. The experimental basis to study such interactions with precision is still being established. Researchers from ICN2's Phononic and Photonic nanostructures (P2N) Group designed a silicon 1D Optomechanical crystal built up so that it all... more »


A novel cost-effective nanoimprint lithography methodology improves ordering in periodic arrays from block copolymers

May 30, 2014 in Uncategorized

The low-cost scalable methodology suggested in Nanotechnology by the ICN2 Phononic and Photonic Nanostructures Group demonstrated an improvement in ordering of the nanodot lattice of up to 50%. Block copolymers (BCPs) are the most attractive alternative to date for the fabrication of well-defined complex periodic structures with length scales ... more »


Phonons and Fluctuations in Low Dimensional Structures, E-MRS symposium in Lille from May 26 to 29

May 26, 2014 in Uncategorized

Phonons and fluctuations in low dimensional structures is Symposium D of the E-MRS spring meeting 2014. The subject of the symposium is the transfer of energy across atomic interfaces and the propagation of energy in the nm-scale. The objective is to bring together concepts from solid state and statistical physics to converge towards a comprehensiv... more »


The EUPHONON European Project celebrates the Nanophononics Day

May 26, 2014 in Uncategorized

The Nanophononics Day, collocated with the European Materials Research Society Spring Meeting (Lille, 26-30 May), aims to raise awareness about this emergent research area and the EUPHONON Project. ICREA Prof Dr Clivia Sotomayor, Group Leader at ICN2, coordinates this initiative. A phonon is a collective excitation of atoms or molecules, a vibrati... more »