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Dr Martín Colombano Sosa awarded the UAB Extraordinary Doctorate Prize in Physics 2019-2020



During his doctoral studies at the ICN2, within the groups led by Prof. Dr Clivia Sotomayor-Torres and Prof. Sergio Valenzuela respectively, Dr Colombano Sosa worked on the high-precision measurement of magnetic fields and synchronization in optomechanical cavities.

Dr Martín Facundo Colombano Sosa carried out his doctoral studies at the UAB and at the ICN2 under the supervision of Dr Daniel Navarro-Urrios and Dr Marius Costache, formerly researchers in the ICN2 Phononic and Photonic Nanostructures Group and in the ICN2 Physics and Engineering of Nanodevices Group, respectively.

P2N welcomes Dr. Zhangfu Chen, visiting postdoctoral researcher



Dr. Zhangfu Chen comes from Yonsei university in South Korea, and will be in the group for 4 months working on the synthesis and fabrication of 2D materials. Welcome Dr. Zhangfu. 


Congratulations to Dr. Omar Florez for his successful PhD. thesis defense



Dr. Omar Florez graduated with a thesis entitled "Brillouin scattering in bosinic systems" defended on 24/11/2022 at ICN2 seminar room.


Prof. Clivia Sotomayor-Torres starts her visiting professorship at the University of Wuppertal



ICREA Prof. Dr Clivia Sotomayor-Torres, leader of the ICN2 Phononic and Photonic Nanostructures Group, has just joined the Faculty of Electrical Engineering, Information Technology and Media Technology of the University of Wuppertal (Bergische Universität Wuppertal- BUW, Germany) for a semester as a visiting professor. For her, this is a return to an already known place since she was a professor at BUW from 1996 to 2004.

P2N welcomes Marcus Albrechtsen, visiting PhD student from DTU


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Marcus Albrechtsen will be one month with us takin measurements with the optomechanical setup.


LEIT holds the first Workshop and All-Partners Project Meeting in Palma de Mallorca



The LEIT project held the first Workshop and in-person All-Partners project meeting on October 18 and October 19-20, respectively, in Palma de Mallorca. Both events were hosted by the ICN2 Phononic and Photonic Nanostructures Group and introduced by ICREA Prof. Dr Clivia Sotomayor-Torres, leader of the same group and coordinator of LEIT.

Farewell of Dr. Ryan Ng and Dr. Emigdio Chavez


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P2N group wish the best to Dr. Ryan Ng who goes back to USA and Dr. Emigdio Chavez that also left the group. 


P2N welcomes Thomas Tran, visiting PhD student



Thomas will be in the group until December of this year. 


Congratulations to Dr. Peng Xiao for his successful PhD. thesis defense



Dr. Peng Xiao graduated with a thesis entitled "Layered materials for thermal management and sensing applications" defended on 07/09/2022 at ICN2 seminar room.


Our paper of shamrock crystal published in Nature Nanotechnology



As reported today in an article in ‘Nature Nanotechnology’, a team of researchers led by scientists at the P2N achieved the suppression of mechanical vibrations in a silicon nanostructured membrane by shaping it into a shamrock pattern. Unwanted vibrations compromise the performance of materials for micro- and nano-electromechanical systems. These results open the way to applications in nanotechnology, optical communications and quantum computing, among others. The publication was accompanied by a News and Views article highlighting the work.

Member of P2N gives oral presentation in CLEO PR in Japan


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The PhD student Omar Florez gives an oral presentation entitled "Direct Observation of Hypersonic Guided Modes" at CLEO PR conference, celebrated in Sapporo, Japan. 


Farewell of Dominik Andras


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P2N wish the best in his future career.  


Farewell of Dr. Lisa Mitterhuber, Simon Landrieux and Paul Nizet



P2N wish the best to all of them in their future endeavors.  


Nanophononics: A perspective in information and communication technologies



In this talk I will introduce phonons as state variable and possible alternative to electronic charge, photons and spins for information generation, transmission, processing and storage, either on their own right or as hybrids combined with either token of information. I will discuss current research questions, challenges and progress in the quest to reduce the energy in ICT processes.


Heat transport in MoS2 layers featured on the front cover


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This research was a collaborative effort of researchers belonging to four groups of the ICN2. It also involved scientists from the Institute of Photonic Sciences (ICFO, Barcelona), Utrecht University (the Netherlands), the University of Liège (Belgium) and the Weizmann Institute of Science (Israel).

Highly-Scattering Cellulose-Based Films for Radiative Cooling



Our work in radiative cooling was published in Advanced science.

Thin is cool: researchers unveil the excellent heat dissipation properties of layered semiconductors down to the monolayer



A study published in “Advanced Materials” reveals the thermal transport properties of ultrathin crystals (made of just one or a few layers) of molybdenum diselenide, a two-dimensional (2D) material of the transition metal dichalcogenide (TMD) family.

This research was a collaborative effort of researchers belonging to four groups of the ICN2. It also involved scientists from the Institute of Photonic Sciences (ICFO, Barcelona), Utrecht University (the Netherlands), the University of Liège (Belgium) and the Weizmann Institute of Science (Israel).

Severo Ochoa 2.0 Women Talent Research Grant to Mariana Sledzinska



Phonon-electron coupling in twisted 2D layers under mechanical strain:

This project will study the phonon and exciton dynamics in CVD-grown, semiconducting single layer MoS2 and bilayers with twisted angles on flexible and stretchable substrates. Non-destructive optical techniques such as high resolution Raman spectroscopy, photoluminescence and ultrafast pump-probe will be applied in order to fully understand the strain-enabled phonon-electron interactions.


New article published in surfaces and interfaces


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Impact of surface topography on the bacterial attachment to micro- and nano-patterned polymer films

Cooling Photonics on stage at Expoquimia 2021


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Cooling Photonics, is a spin-off company of ICN2 from the P2N group that provides passive cooling solutions without energy consumption or carbon emissions. The technology pushed forward by the company consist of a nano-fabricated coating material that can be applied on any surface hotter than the ambient, allowing the dissipation of heat as infrared radiation and, thus, decreasing its temperature.
The research activities that resulted in the creation of the company were mainly coordinated by senior researcher Dr. Juliana Jaramillo Fernández. Javier Achiaga, CEO of Cooling Photonics, Antonio Cuenca, COO, and Dr. Juliana Jaramillo presented the company, the technology and its applications in a talk at Expoquimia 2021. 

Tutorial on key conceps topological phononic crystals



Dr. Marco Miniaci from U. Lille gave us a great tutorial on topological phononic crystals, it was really interesting. If you want to know more about it, you can find the recorded seasons on YouTube by clicking view more.

Congratulations to Susanne for her successful PhD defense



Congratulations to Susanne Sandell on her PhD viva held on Friday 12th March. Susanne was a research visitor in ICN2-P2N twice and she left warm memories of her dedication and professionalism. She was involved in the setting up of the FDTR set up and co-authored several papers as part of a joint  project between Prof He’s group at the National University of Technology at Trondheim and the P2N at ICN2. Dr. Sandell will be joining SINTEF, The Norwegian Independent Research Organization.

We wish her all the best for her new position.

Prof. Clivia Sotomayor, invited speaker at workshop on nanoscale acoustics in thermal and quantum regimes 



Prof. Clivia has been invited to the Workshop on Nanoscale Acoustics in the Thermal and Quantum Regimes, a virtual event that will be hosted by the university of Chicago from March 24th to 26th. The talk is entitled "Thermal transport and control of the nonlinear dynamics of single and coupled OM crystals" and will be on March 25.

Congratulations to Guillermo  for his successful PhD thesis defense 



Guillermo Arregui successfully defended his PhD thesis titled “Light-motion interaction in disordered nanostructures” on 26th February, 2021 at ICN2. The work was under supervision of Dr. David Garcia and prof. Clivia Sotomayor. Congratulations to Guillermo and we wish all the best in his professional career.


Phononic crystals studied by Transit Thermal Gradient



In the MISTI collaboration between our group and the Nelson's group at MIT, the phonon mediated thermal transport in 2D phononic crystals studied by TTG (Transit Thermal Gradient) and interpreted successfully using Boltzmann equation with the Casimir approximation. 

Free download until 8 January.

Novel high-sensitivity and fast response magnetometer



Optomechanical cavities are devices able to amplify interactions between light and mechanical systems, which are used as very sensitive detectors of displacement. Thanks to the interaction of magnetic fields with mechanical elements, optomechanical devices can also serve to measure magnetic field, i.e. as magnetometers. In particular, the ability to measure small fields over a broad range of frequencies is relevant to many applications in geology, space exploration, biology and medical imaging.

Congratulations to Alois Arrighi for his successful PhD thesis defense 



Alois successfully defended his PhD thesis titled “Thermal and thermoelectric properties of two-dimensional materials” on 22th October, 2020 at ICN2. The work was under supervision of Prof. Sergio Valenzuela, leader of Physics and Engineering of nanodevices group and prof. Clivia Sotomayor, leader of Phononic and Photonic Nanostructures group at ICN2. Congratulations to Alois and we wish all the best in his professional career.


Temporary good bye party for Marianna's maternal leave



Congratulations to Marianna for the born of her baby Leonardo. We wish him all the best in the life and we will be waiting to see Marianna again after her maternal leave. 


Prof. Clivia Sotomayor talks in the Future Tech Week 2020



The session focused on the contributions from female scientists involved in Pathfinder projects. Prof. Clivia Sotomayor Torres (PHENOMEN) and Cecilia Laschi (OCTOPUS) shared their perspectives on the involvement of women in the Pathfinder projects, addressing areas capable to create new foundations of science-enabled innovations. This session is a contribution to the Future Tech Week 2020

Congratulations to Martin Colombano for his successfull PhD thesis defense, graded as Excellent Cum-Laude

September 17, 2020

Martin successfully defended his PhD thesis titled “High precision measurements of magnetic fields and synchronization in optomechanical cavities” on 18th September, 2020 at ICN2. The work was under supervision of Dr. Daniel Navarro Urrios, Postdoctoral Researcher at Phononic and Photonic Nanostructures group and Dr Marius Costache, Senior Researcher at Physics and Engineering of Nanodevices group at ICN2. Congratulations to Martin and we wish all the best in his professional career.

Prof. Clivia Sotomayor gives a plenary talk at e-CPM2020

August 18, 2020

Prof. Clivia Sotomayor has presented the work: "Thermal transport in the nanoscale: a study of Si and MoS2 nanostructure"as a plenary speaker in the “2020 Express Conference on the Physics of Materials and Their Applications in Energy Harvesting”, an Online event held from August 17 th to 19 th , 2020

PHENOMEN (H2020 FET OPEN project) assessed as excellent by the European Commission

August 06, 2020

The EU Project PHENOMEN (All-Phononic circuits Enabled by Opto-Mechanics), a H2020 FET OPEN funded project coordinated by the ICN2-P2N was evaluated as excellent by the European Commission. The consortium proved convincingly the feasibility of a phononic circuit working at room temperature using silicon compatible technologies. Here some excerpts from the evaluation report.

“The reviewers unanimously agree the project has delivered “exceptional results with significant immediate or potential impact”.
We confirm that the outcome from the project, in terms of new understanding in physics of phonons and their possible outcomes definitively will influence the research community. The project has delivered several important results, both in terms of models and simulation tools development as in terms of new technology.”

For more information about this project, you are welcome to view our consortium video

Navigating a Career in Research

July 19, 2020

What does it mean to “make it” as a woman in research?
Prof. Clivia M. Sotomayor Torres shares her thoughts.

Note highlighted in Optics and Photonics news magazine.  

Dr Alex El Sachat receives the Special Award for Doctoral Studies

June 22, 2020

Dr Alexandros El Sachat, postdoctoral researcher at the Phononic and Photonic Nanostructures Group, has received, at the proposal of the Academic Committee of the doctoral programme in Physics, the Special Award for Doctoral Studies (Premi Extraordinari de Doctorat), corresponding to academic year 2016-2017.

The awards ceremony was scheduled for 22 May, but the declaration of the state of alarm due to the COVID-19 pandemic has postponed it without a date. As a consequence, the certificate has been sent to the awardees in digital format. Congratulations!

New MSCA-IF-2019 - Individual Fellowships Postdoc

June 10, 2020

Congratulation to Dr. Ryan Cecil Ng for being awarded with this prestigious fellowship. During this project, we will explore novel designs for optomechanical nanostructures and develop experimental methods to address the phononic and photonic modes of nanoscale objects from free-space. Using embedded light emitting quantum dots we will avoid the limitations imposed by optical fibers currently used to bring light to the optomechanical cavity, which will in turn enable the incorporation of optically active materials in mechanical resonators and prepare them for up-scaling.

Webinar ERC: Cómo preparar una propuesta Advanced Grant 2020 exitosa (parte II) || 29 Mayo 2020, 10:00 AM CEST

May 27, 2020

Prof. Clivia Sotomayor was asked to share the experience on preparing a successfully ERC advanced grant proposal. Here you can join this webinar.

Fantastic particles and where to find them

May 27, 2020

Mysterious material properties are laying the groundwork for photon-electron channels communication devices: the TOCHA project

ERC Advanced Grant to Prof. Dr Clivia Sotomayor Torres

March 31, 2020

ICREA Prof. Dr Clivia Sotomayor Torres, leader of the ICN2 Phononic and Photonic Nanostructures Group, has been awarded an ERC Advanced Grant to head a five-year project in which the interconnect energy-consumption challenge using an innovative approach will be investigated. Named LEIT, from “Lossless information for emerging information technologies”, this project will develop structures that allow taking advantage of phonon properties to transmit information using small amounts of energy.

This is an excellent news for P2N group.

Self-assembled microspheres article mentioned in local news

November 21, 2019

Our recent published article: "A Self‐Assembled 2D Thermofunctional Material for Radiative Cooling" authored By J. Jaramillo-Fernandez has been recognized by several Spanish newspapers as scientific breakthrough in thermal management. Renowned newspaper as La Vanguardia and La Razón highlighted our research in their pages. In addition a local  TV channel (TV3) mentioned in its webpage. It is important to remark that the importance of  this kind of technologies has not gone unnoticed. Part of our team (J Jaramillo-Fernandez, A. Francone and N. Kehagias) have also developed another material that is easily up-scalable and is capable of providing both radiative cooling and self-cleaning. The Collider, a technology transfer program promoted by Mobile World Capital Barcelona that connects scientific research with entrepreneurial initiative, has awarded this project The Collider Tech Award 2019, a prize that encourages further development of this research line on radiative cooling materials. A European patent protecting the intellectual property rights of this technology was filed on 31 July 2019 by the ICN2 and ICREA.

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