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


Modification of Akhieser mechanism in Si nanomembranes and thermal conductivity ...

E. Chávez-Ángel, R. A. Zarate, J. Gomis-Bresco, F. Alzina, and C. M. Sotomayor Torres. Semiconductor Science and Technology, 29, 124010 (2014) open reference link »


Optical and mechanical mode tuning in an optomechanical crystal with light-induc...

D. Navarro-Urrios, J. Gomis-Bresco, N. E. Capuj, F. Alzina, A. Griol, D. Puerto, A. Martínez, and C. M. Sotomayor-Torres. J. Appl. Phys. 116, 093506 (2014) open reference link »

A PhoXonic Crystal: Photonic and Phononic Bandgaps in a 1D Optomechanical Crysta...

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. IEEE proc. of ICTON 2014, 1410 (2014) open reference link »

Beyond CMOS: NANO-TEC project recommendations for research in nanoelectronics


C. M. Sotomayor Torres, J. Ahopelto, M.W. M. Graef, A. Cappy, G. Larrieu, T. Swahn, G.Wendin, D. Winkler, P. Grabiec, G. Fagas, R. Popp, and W. Rosenstiel. e-nanonewsletter, 29, 15 (2014)

Latest News


The P2N group to pioneer a series of post-graduate lectures

November 4, 2014 in Uncategorized

Researchers of the Phononic and Photonic Nanostructures group took the initiative, in collaboration with ICN2 Human Resources and Education Department, to launch a series of post-graduate lectures on optical spectroscopy. This will be part of the new ICN2 Open Knowledge Program that aims to create an internal flow of knowledge. The action is a pilo... more »


Results on phononic bandgap in 1-D optomechanical crystal highlighted in Nature Photonics

October 2, 2014 in Uncategorized

Our recent article "A one-dimensional optomechanical crystal with a complete phononic band gap" by Jordi Gomis et al. has been highlighted in Nature Photonics in an article by Maria Maragkou - Nat. Phot., 8, 746 (2014). more »


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 »