Ultrafast Dynamics in Nanoscale Systems

Group Leader: Klaas-Jan Tielrooij


Defects to the rescue: Exploiting defects at Van der Waals interfaces between layered materials

A paper recently published in the journal “Science Advances” demonstrates that defects in van der Waals materials, normally detrimental for device applications, can be exploited to capture and store charge carriers and therefore be beneficial for practical applications, such as photodetectors. Dr Klaas-Jan Tielrooij, leader of the Ultrafast Dynamics in Nanoscale Systems group at the ICN2, participated in this study.

Graphene-based hybrid material enables efficient light conversion of invisible light

Researchers from various institutes in Barcelona and Germany have demonstrated that a hybrid material consisting of a monolayer of graphene and a metallic grating structure is an excellent candidate for relevant commercial applications in which efficient nonlinear conversion of (invisible) terahertz light is required. This work has just been published in ACSNano, in a paper with Dr Klaas-Jan Tielrooij, leader of the ICN2 Ultrafast Dynamics in Nanoscale Systems group, as last author. Metal grating combined with graphene opens up the road to terahertz nonlinear photonic applications. 

Fast electrical modulation of nanoscale erbium-graphene systems towards quantum technology applications

A research recently published in Nature Communications shows that a nanolayer of erbium light emitters combined with monolayer graphene exhibits extremely strong near-field interactions, whose strength can be modulated orders of magnitude faster than the natural decay rate of the erbium emitters. This hybrid erbium-graphene material platform opens up exciting possibilities, including manipulation of quantum states. This study has been carried out by a team of scientists that includes ICN2 Junior Group Leader Dr Klaas-Jan Tielrooij, and colleagues from ICFO in Barcelona and IRCP in Paris.

BIST supports multidisciplinary research through the BIST Ignite Programme and Awards

The awarded projects are BIOVAC (ICN2 / IBEC), which aims to develop a new generation of vaccines against untreatable infections and multi-resistant bacteria, and BIOSPAD (ICFO / IFAE), which will develop more affordable brain diagnostic tests. ICN2 is involved in 4 of the 5 projects selected in the 2020 Ignite Programme, leading one of them (SensMOF) through Dr Leyre Gómez Navascués.

Research meets industry at the Graphene 2019 Conference

Starting this morning in Rome, this edition of the Graphene Conference series (June 25-28) will bring together experts on graphene and 2D materials from around Europe, as well as companies interested in exploiting new promising technologies in this field. The ICN2 has a leading role in creating new graphene-based scientific and industrial opportunities. Visit the BIST booth we share with our colleagues from ICFO and IFAE!

The ICN2 celebrates the first Severo Ochoa ICT Workshop: Lavoisier discussion on “Quantum Simulation”

The event, held on 8-9 May, is the first of a series of workshops offering an overview of the different research areas covered by the ICN2 Severo Ochoa Strategic Plan. It was focused on ultrafast dynamics and organised in collaboration with the European centre of excellence MaX, GRR-I Graphene&Co and GDR Graphene&Co. ICREA Prof. Stephan Roche, Group Leader of the ICN2 Theoretical and Computational Nanoscience Group, was the local coordinator of the event.

Graphene enables a new technology for detecting terahertz radiation

A recent study in Nano Letters depicts a device that overcomes the several disadvantages related to current terahertz detectors. ICN2 Junior Group Leader Dr Klaas-Jan Tielrooij, who was involved in this work while still performing his research at ICFO, is one of the corresponding authors.

Dr Klaas-Jan Tielrooij joins the ICN2 with an ERC Starting Grant

This researcher combines the study of fundamental physics with applied research, exploring ultrafast dynamics in nanoscale systems and their application in the fields of photodetection, quantum technologies and telecommunications. Building on close collaborations via inter-institutional projects within BIST, he will join the ICN2 in October as junior group leader, complete with his recently awarded ERC Starting Grant.

BIST reveals the five Ignite seed projects for 2018

Today the Barcelona Institute of Science and Technology (BIST) announce the five projects that will receive seed funding under the 2018 edition of its Ignite programme to accelerate multidisciplinary research at its member institutes.